mirror of
https://github.com/aquasecurity/kube-bench.git
synced 2026-02-19 20:40:17 +00:00
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26
.github/workflows/build.yml
vendored
26
.github/workflows/build.yml
vendored
@@ -14,7 +14,7 @@ on:
|
||||
- "LICENSE"
|
||||
- "NOTICE"
|
||||
env:
|
||||
GO_VERSION: "1.19"
|
||||
GO_VERSION: "1.21"
|
||||
KIND_VERSION: "v0.11.1"
|
||||
KIND_IMAGE: "kindest/node:v1.21.1@sha256:69860bda5563ac81e3c0057d654b5253219618a22ec3a346306239bba8cfa1a6"
|
||||
|
||||
@@ -24,32 +24,32 @@ jobs:
|
||||
runs-on: ubuntu-latest
|
||||
steps:
|
||||
- name: Setup Go
|
||||
uses: actions/setup-go@v4
|
||||
uses: actions/setup-go@v5
|
||||
with:
|
||||
go-version: ${{ env.GO_VERSION }}
|
||||
- name: Checkout code
|
||||
uses: actions/checkout@v3
|
||||
uses: actions/checkout@v4
|
||||
- name: yaml-lint
|
||||
uses: ibiqlik/action-yamllint@v3
|
||||
- name: Setup golangci-lint
|
||||
uses: golangci/golangci-lint-action@v3
|
||||
uses: golangci/golangci-lint-action@v4
|
||||
with:
|
||||
version: latest
|
||||
version: v1.57.2
|
||||
args: --verbose
|
||||
unit:
|
||||
name: Unit tests
|
||||
runs-on: ubuntu-latest
|
||||
steps:
|
||||
- name: Setup Go
|
||||
uses: actions/setup-go@v4
|
||||
uses: actions/setup-go@v5
|
||||
with:
|
||||
go-version: ${{ env.GO_VERSION }}
|
||||
- name: Checkout code
|
||||
uses: actions/checkout@v3
|
||||
uses: actions/checkout@v4
|
||||
- name: Run unit tests
|
||||
run: make tests
|
||||
- name: Upload code coverage
|
||||
uses: codecov/codecov-action@v3
|
||||
uses: codecov/codecov-action@v4
|
||||
with:
|
||||
file: ./coverage.txt
|
||||
e2e:
|
||||
@@ -57,11 +57,11 @@ jobs:
|
||||
runs-on: ubuntu-latest
|
||||
steps:
|
||||
- name: Setup Go
|
||||
uses: actions/setup-go@v4
|
||||
uses: actions/setup-go@v5
|
||||
with:
|
||||
go-version: ${{ env.GO_VERSION }}
|
||||
- name: Checkout code
|
||||
uses: actions/checkout@v3
|
||||
uses: actions/checkout@v4
|
||||
- name: Setup Kubernetes cluster (KIND)
|
||||
uses: engineerd/setup-kind@v0.5.0
|
||||
with:
|
||||
@@ -87,15 +87,15 @@ jobs:
|
||||
needs: [e2e, unit]
|
||||
steps:
|
||||
- name: Setup Go
|
||||
uses: actions/setup-go@v4
|
||||
uses: actions/setup-go@v5
|
||||
with:
|
||||
go-version: ${{ env.GO_VERSION }}
|
||||
- name: Checkout code
|
||||
uses: actions/checkout@v3
|
||||
uses: actions/checkout@v4
|
||||
with:
|
||||
fetch-depth: 0
|
||||
- name: Dry-run release snapshot
|
||||
uses: goreleaser/goreleaser-action@v5
|
||||
uses: goreleaser/goreleaser-action@v6
|
||||
with:
|
||||
distribution: goreleaser
|
||||
version: v1.7.0
|
||||
|
||||
2
.github/workflows/mkdocs-deploy.yaml
vendored
2
.github/workflows/mkdocs-deploy.yaml
vendored
@@ -16,7 +16,7 @@ jobs:
|
||||
runs-on: ubuntu-latest
|
||||
steps:
|
||||
- name: Checkout main
|
||||
uses: actions/checkout@v3
|
||||
uses: actions/checkout@v4
|
||||
with:
|
||||
fetch-depth: 0
|
||||
persist-credentials: true
|
||||
|
||||
21
.github/workflows/publish.yml
vendored
21
.github/workflows/publish.yml
vendored
@@ -9,32 +9,33 @@ env:
|
||||
ALIAS: aquasecurity
|
||||
DOCKERHUB_ALIAS: aquasec
|
||||
REP: kube-bench
|
||||
|
||||
jobs:
|
||||
publish:
|
||||
name: Publish
|
||||
runs-on: ubuntu-latest
|
||||
steps:
|
||||
- name: Check Out Repo
|
||||
uses: actions/checkout@v3
|
||||
uses: actions/checkout@v4
|
||||
- name: Set up QEMU
|
||||
uses: docker/setup-qemu-action@v2
|
||||
uses: docker/setup-qemu-action@v3
|
||||
- name: Set up Docker Buildx
|
||||
id: buildx
|
||||
uses: docker/setup-buildx-action@v2
|
||||
uses: docker/setup-buildx-action@v3
|
||||
- name: Cache Docker layers
|
||||
uses: actions/cache@v3
|
||||
uses: actions/cache@v4
|
||||
with:
|
||||
path: /tmp/.buildx-cache
|
||||
key: ${{ runner.os }}-buildxarch-${{ github.sha }}
|
||||
restore-keys: |
|
||||
${{ runner.os }}-buildxarch-
|
||||
- name: Login to Docker Hub
|
||||
uses: docker/login-action@v2
|
||||
uses: docker/login-action@v3
|
||||
with:
|
||||
username: ${{ secrets.DOCKERHUB_USER }}
|
||||
password: ${{ secrets.DOCKERHUB_TOKEN }}
|
||||
- name: Login to ECR
|
||||
uses: docker/login-action@v2
|
||||
uses: docker/login-action@v3
|
||||
with:
|
||||
registry: public.ecr.aws
|
||||
username: ${{ secrets.ECR_ACCESS_KEY_ID }}
|
||||
@@ -46,7 +47,10 @@ jobs:
|
||||
images: ${{ env.REP }}
|
||||
tag-semver: |
|
||||
{{version}}
|
||||
|
||||
- name: Extract variables from makefile (kubectl)
|
||||
id: extract_vars
|
||||
run: |
|
||||
echo "KUBECTL_VERSION=$(grep -oP '^KUBECTL_VERSION\s*\?=\s*\K.*' makefile)" >> $GITHUB_ENV
|
||||
- name: Build and push - Docker/ECR
|
||||
id: docker_build
|
||||
uses: docker/build-push-action@v5
|
||||
@@ -57,6 +61,7 @@ jobs:
|
||||
push: true
|
||||
build-args: |
|
||||
KUBEBENCH_VERSION=${{ steps.get_version.outputs.version }}
|
||||
KUBECTL_VERSION=${{ env.KUBECTL_VERSION }}
|
||||
tags: |
|
||||
${{ env.DOCKERHUB_ALIAS }}/${{ env.REP }}:${{ steps.get_version.outputs.version }}
|
||||
public.ecr.aws/${{ env.ALIAS }}/${{ env.REP }}:${{ steps.get_version.outputs.version }}
|
||||
@@ -76,6 +81,7 @@ jobs:
|
||||
file: Dockerfile.ubi
|
||||
build-args: |
|
||||
KUBEBENCH_VERSION=${{ steps.get_version.outputs.version }}
|
||||
KUBECTL_VERSION=${{ env.KUBECTL_VERSION }}
|
||||
tags: |
|
||||
${{ env.DOCKERHUB_ALIAS }}/${{ env.REP }}:${{ steps.get_version.outputs.version }}-ubi
|
||||
public.ecr.aws/${{ env.ALIAS }}/${{ env.REP }}:${{ steps.get_version.outputs.version }}-ubi
|
||||
@@ -95,6 +101,7 @@ jobs:
|
||||
file: Dockerfile.fips.ubi
|
||||
build-args: |
|
||||
KUBEBENCH_VERSION=${{ steps.get_version.outputs.version }}
|
||||
KUBECTL_VERSION=${{ env.KUBECTL_VERSION }}
|
||||
tags: |
|
||||
${{ env.DOCKERHUB_ALIAS }}/${{ env.REP }}:${{ steps.get_version.outputs.version }}-ubi-fips
|
||||
public.ecr.aws/${{ env.ALIAS }}/${{ env.REP }}:${{ steps.get_version.outputs.version }}-ubi-fips
|
||||
|
||||
8
.github/workflows/release.yml
vendored
8
.github/workflows/release.yml
vendored
@@ -5,7 +5,7 @@ on:
|
||||
tags:
|
||||
- "v*"
|
||||
env:
|
||||
GO_VERSION: "1.19"
|
||||
GO_VERSION: "1.21"
|
||||
KIND_VERSION: "v0.11.1"
|
||||
KIND_IMAGE: "kindest/node:v1.21.1@sha256:69860bda5563ac81e3c0057d654b5253219618a22ec3a346306239bba8cfa1a6"
|
||||
|
||||
@@ -15,11 +15,11 @@ jobs:
|
||||
runs-on: ubuntu-latest
|
||||
steps:
|
||||
- name: Setup Go
|
||||
uses: actions/setup-go@v4
|
||||
uses: actions/setup-go@v5
|
||||
with:
|
||||
go-version: ${{ env.GO_VERSION }}
|
||||
- name: Checkout code
|
||||
uses: actions/checkout@v3
|
||||
uses: actions/checkout@v4
|
||||
with:
|
||||
fetch-depth: 0
|
||||
- name: Run unit tests
|
||||
@@ -44,7 +44,7 @@ jobs:
|
||||
second_file_path: integration/testdata/Expected_output.data
|
||||
expected_result: PASSED
|
||||
- name: Release
|
||||
uses: goreleaser/goreleaser-action@v5
|
||||
uses: goreleaser/goreleaser-action@v6
|
||||
with:
|
||||
distribution: goreleaser
|
||||
version: v1.7.0
|
||||
|
||||
@@ -2,10 +2,15 @@
|
||||
project_name: kube-bench
|
||||
env:
|
||||
- GO111MODULE=on
|
||||
- CGO_ENABLED=0
|
||||
- KUBEBENCH_CFG=/etc/kube-bench/cfg
|
||||
builds:
|
||||
- main: main.go
|
||||
binary: kube-bench
|
||||
tags:
|
||||
- osusergo
|
||||
- netgo
|
||||
- static_build
|
||||
goos:
|
||||
- linux
|
||||
- darwin
|
||||
@@ -19,6 +24,9 @@ builds:
|
||||
- 6
|
||||
- 7
|
||||
ldflags:
|
||||
- "-s"
|
||||
- "-w"
|
||||
- "-extldflags '-static'"
|
||||
- "-X github.com/aquasecurity/kube-bench/cmd.KubeBenchVersion={{.Version}}"
|
||||
- "-X github.com/aquasecurity/kube-bench/cmd.cfgDir={{.Env.KUBEBENCH_CFG}}"
|
||||
# Archive customization
|
||||
|
||||
13
Dockerfile
13
Dockerfile
@@ -1,4 +1,4 @@
|
||||
FROM golang:1.21.1 AS build
|
||||
FROM golang:1.22.2 AS build
|
||||
WORKDIR /go/src/github.com/aquasecurity/kube-bench/
|
||||
COPY makefile makefile
|
||||
COPY go.mod go.sum ./
|
||||
@@ -9,7 +9,15 @@ COPY internal/ internal/
|
||||
ARG KUBEBENCH_VERSION
|
||||
RUN make build && cp kube-bench /go/bin/kube-bench
|
||||
|
||||
FROM alpine:3.18.3 AS run
|
||||
# Add kubectl to run policies checks
|
||||
ARG KUBECTL_VERSION TARGETARCH
|
||||
RUN wget -O /usr/local/bin/kubectl "https://dl.k8s.io/release/v${KUBECTL_VERSION}/bin/linux/${TARGETARCH}/kubectl"
|
||||
RUN wget -O kubectl.sha256 "https://dl.k8s.io/release/v${KUBECTL_VERSION}/bin/linux/${TARGETARCH}/kubectl.sha256"
|
||||
# Verify kubectl sha256sum
|
||||
RUN /bin/bash -c 'echo "$(<kubectl.sha256) /usr/local/bin/kubectl" | sha256sum -c -'
|
||||
RUN chmod +x /usr/local/bin/kubectl
|
||||
|
||||
FROM alpine:3.20.0 AS run
|
||||
WORKDIR /opt/kube-bench/
|
||||
# add GNU ps for -C, -o cmd, and --no-headers support
|
||||
# https://github.com/aquasecurity/kube-bench/issues/109
|
||||
@@ -32,6 +40,7 @@ RUN apk add jq
|
||||
ENV PATH=$PATH:/usr/local/mount-from-host/bin
|
||||
|
||||
COPY --from=build /go/bin/kube-bench /usr/local/bin/kube-bench
|
||||
COPY --from=build /usr/local/bin/kubectl /usr/local/bin/kubectl
|
||||
COPY entrypoint.sh .
|
||||
COPY cfg/ cfg/
|
||||
ENTRYPOINT ["./entrypoint.sh"]
|
||||
|
||||
@@ -1,4 +1,4 @@
|
||||
FROM golang:1.21.1 AS build
|
||||
FROM golang:1.22.2 AS build
|
||||
WORKDIR /go/src/github.com/aquasecurity/kube-bench/
|
||||
COPY makefile makefile
|
||||
COPY go.mod go.sum ./
|
||||
@@ -9,9 +9,17 @@ COPY internal/ internal/
|
||||
ARG KUBEBENCH_VERSION
|
||||
RUN make build-fips && cp kube-bench /go/bin/kube-bench
|
||||
|
||||
# Add kubectl to run policies checks
|
||||
ARG KUBECTL_VERSION TARGETARCH
|
||||
RUN wget -O /usr/local/bin/kubectl "https://dl.k8s.io/release/v${KUBECTL_VERSION}/bin/linux/${TARGETARCH}/kubectl"
|
||||
RUN wget -O kubectl.sha256 "https://dl.k8s.io/release/v${KUBECTL_VERSION}/bin/linux/${TARGETARCH}/kubectl.sha256"
|
||||
# Verify kubectl sha256sum
|
||||
RUN /bin/bash -c 'echo "$(<kubectl.sha256) /usr/local/bin/kubectl" | sha256sum -c -'
|
||||
RUN chmod +x /usr/local/bin/kubectl
|
||||
|
||||
|
||||
# ubi8-minimal base image for build with ubi standards
|
||||
FROM registry.access.redhat.com/ubi8/ubi-minimal as run
|
||||
FROM registry.access.redhat.com/ubi9/ubi-minimal as run
|
||||
|
||||
RUN microdnf install -y yum findutils openssl \
|
||||
&& yum -y update-minimal --security --sec-severity=Moderate --sec-severity=Important --sec-severity=Critical \
|
||||
@@ -31,6 +39,7 @@ ENV PATH=$PATH:/usr/local/mount-from-host/bin
|
||||
|
||||
COPY LICENSE /licenses/LICENSE
|
||||
COPY --from=build /go/bin/kube-bench /usr/local/bin/kube-bench
|
||||
COPY --from=build /usr/local/bin/kubectl /usr/local/bin/kubectl
|
||||
COPY entrypoint.sh .
|
||||
COPY cfg/ cfg/
|
||||
ENTRYPOINT ["./entrypoint.sh"]
|
||||
|
||||
@@ -1,4 +1,4 @@
|
||||
FROM golang:1.21.1 AS build
|
||||
FROM golang:1.22.2 AS build
|
||||
WORKDIR /go/src/github.com/aquasecurity/kube-bench/
|
||||
COPY makefile makefile
|
||||
COPY go.mod go.sum ./
|
||||
@@ -9,9 +9,17 @@ COPY internal/ internal/
|
||||
ARG KUBEBENCH_VERSION
|
||||
RUN make build && cp kube-bench /go/bin/kube-bench
|
||||
|
||||
# Add kubectl to run policies checks
|
||||
ARG KUBECTL_VERSION TARGETARCH
|
||||
RUN wget -O /usr/local/bin/kubectl "https://dl.k8s.io/release/v${KUBECTL_VERSION}/bin/linux/${TARGETARCH}/kubectl"
|
||||
RUN wget -O kubectl.sha256 "https://dl.k8s.io/release/v${KUBECTL_VERSION}/bin/linux/${TARGETARCH}/kubectl.sha256"
|
||||
# Verify kubectl sha256sum
|
||||
RUN /bin/bash -c 'echo "$(<kubectl.sha256) /usr/local/bin/kubectl" | sha256sum -c -'
|
||||
RUN chmod +x /usr/local/bin/kubectl
|
||||
|
||||
|
||||
# ubi8-minimal base image for build with ubi standards
|
||||
FROM registry.access.redhat.com/ubi8/ubi-minimal as run
|
||||
FROM registry.access.redhat.com/ubi9/ubi-minimal as run
|
||||
|
||||
RUN microdnf install -y yum findutils openssl \
|
||||
&& yum -y update-minimal --security --sec-severity=Moderate --sec-severity=Important --sec-severity=Critical \
|
||||
@@ -31,6 +39,7 @@ ENV PATH=$PATH:/usr/local/mount-from-host/bin
|
||||
|
||||
COPY LICENSE /licenses/LICENSE
|
||||
COPY --from=build /go/bin/kube-bench /usr/local/bin/kube-bench
|
||||
COPY --from=build /usr/local/bin/kubectl /usr/local/bin/kubectl
|
||||
COPY entrypoint.sh .
|
||||
COPY cfg/ cfg/
|
||||
ENTRYPOINT ["./entrypoint.sh"]
|
||||
|
||||
@@ -25,14 +25,16 @@ groups:
|
||||
|
||||
- id: 4.1.2
|
||||
text: "Ensure that the kubelet service file ownership is set to root:root (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletsvc; then stat -c %U:%G $kubeletsvc; fi'' '
|
||||
audit: '/bin/sh -c "if test -e $kubeletsvc; then stat -c %U:%G $kubeletsvc; else echo \"File not found\"; fi"'
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: root:root
|
||||
- flag: "File not found"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chown root:root $kubeletsvc
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chown root:root $kubeletsvc
|
||||
scored: true
|
||||
|
||||
- id: 4.1.3
|
||||
@@ -45,8 +47,6 @@ groups:
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "644"
|
||||
- flag: "$proxykubeconfig"
|
||||
set: false
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
@@ -60,8 +60,6 @@ groups:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: root:root
|
||||
- flag: "$proxykubeconfig"
|
||||
set: false
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example, chown root:root $proxykubeconfig
|
||||
|
||||
@@ -25,14 +25,16 @@ groups:
|
||||
|
||||
- id: 4.1.2
|
||||
text: "Ensure that the kubelet service file ownership is set to root:root (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletsvc; then stat -c %U:%G $kubeletsvc; fi'' '
|
||||
audit: '/bin/sh -c "if test -e $kubeletsvc; then stat -c %U:%G $kubeletsvc; else echo \"File not found\"; fi"'
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: root:root
|
||||
- flag: "File not found"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chown root:root $kubeletsvc
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chown root:root $kubeletsvc
|
||||
scored: true
|
||||
|
||||
- id: 4.1.3
|
||||
@@ -46,8 +48,6 @@ groups:
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "644"
|
||||
- flag: "$proxykubeconfig"
|
||||
set: false
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
@@ -61,8 +61,6 @@ groups:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: root:root
|
||||
- flag: "$proxykubeconfig"
|
||||
set: false
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example, chown root:root $proxykubeconfig
|
||||
|
||||
@@ -24,14 +24,16 @@ groups:
|
||||
|
||||
- id: 4.1.2
|
||||
text: "Ensure that the kubelet service file ownership is set to root:root (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletsvc; then stat -c %U:%G $kubeletsvc; fi'' '
|
||||
audit: '/bin/sh -c "if test -e $kubeletsvc; then stat -c %U:%G $kubeletsvc; else echo \"File not found\"; fi"'
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: root:root
|
||||
- flag: "File not found"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chown root:root $kubeletsvc
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chown root:root $kubeletsvc
|
||||
scored: true
|
||||
|
||||
- id: 4.1.3
|
||||
@@ -45,8 +47,6 @@ groups:
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "644"
|
||||
- flag: "$proxykubeconfig"
|
||||
set: false
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
@@ -60,8 +60,6 @@ groups:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: root:root
|
||||
- flag: "$proxykubeconfig"
|
||||
set: false
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example, chown root:root $proxykubeconfig
|
||||
|
||||
2
cfg/cis-1.24-microk8s/config.yaml
Normal file
2
cfg/cis-1.24-microk8s/config.yaml
Normal file
@@ -0,0 +1,2 @@
|
||||
---
|
||||
## Version-specific settings that override the values in cfg/config.yaml
|
||||
46
cfg/cis-1.24-microk8s/controlplane.yaml
Normal file
46
cfg/cis-1.24-microk8s/controlplane.yaml
Normal file
@@ -0,0 +1,46 @@
|
||||
---
|
||||
controls:
|
||||
version: "cis-1.24"
|
||||
id: 3
|
||||
text: "Control Plane Configuration"
|
||||
type: "controlplane"
|
||||
groups:
|
||||
- id: 3.1
|
||||
text: "Authentication and Authorization"
|
||||
checks:
|
||||
- id: 3.1.1
|
||||
text: "Client certificate authentication should not be used for users (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Alternative mechanisms provided by Kubernetes such as the use of OIDC should be
|
||||
implemented in place of client certificates.
|
||||
scored: false
|
||||
|
||||
- id: 3.2
|
||||
text: "Logging"
|
||||
checks:
|
||||
- id: 3.2.1
|
||||
text: "Ensure that a minimal audit policy is created (Manual)"
|
||||
audit: "cat $apiserverconf | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--audit-policy-file"
|
||||
set: true
|
||||
remediation: |
|
||||
Create an audit policy file for your cluster.
|
||||
scored: false
|
||||
|
||||
- id: 3.2.2
|
||||
text: "Ensure that the audit policy covers key security concerns (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Review the audit policy provided for the cluster and ensure that it covers
|
||||
at least the following areas,
|
||||
- Access to Secrets managed by the cluster. Care should be taken to only
|
||||
log Metadata for requests to Secrets, ConfigMaps, and TokenReviews, in
|
||||
order to avoid risk of logging sensitive data.
|
||||
- Modification of Pod and Deployment objects.
|
||||
- Use of `pods/exec`, `pods/portforward`, `pods/proxy` and `services/proxy`.
|
||||
For most requests, minimally logging at the Metadata level is recommended
|
||||
(the most basic level of logging).
|
||||
scored: false
|
||||
121
cfg/cis-1.24-microk8s/etcd.yaml
Normal file
121
cfg/cis-1.24-microk8s/etcd.yaml
Normal file
@@ -0,0 +1,121 @@
|
||||
---
|
||||
controls:
|
||||
version: "cis-1.24"
|
||||
id: 2
|
||||
text: "Etcd Node Configuration"
|
||||
type: "etcd"
|
||||
groups:
|
||||
- id: 2
|
||||
text: "Etcd Node Configuration"
|
||||
checks:
|
||||
- id: 2.1
|
||||
text: "Ensure that the --cert-file and --key-file arguments are set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "--cert-file"
|
||||
env: "ETCD_CERT_FILE"
|
||||
- flag: "--key-file"
|
||||
env: "ETCD_KEY_FILE"
|
||||
remediation: |
|
||||
Not applicable. MicroK8s used dqlite and the communication to this service is done through a
|
||||
local socket (/var/snap/microk8s/current/var/kubernetes/backend/kine.sock:12379) accessible
|
||||
to users with root permissions.
|
||||
scored: false
|
||||
|
||||
- id: 2.2
|
||||
text: "Ensure that the --client-cert-auth argument is set to true (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--client-cert-auth"
|
||||
env: "ETCD_CLIENT_CERT_AUTH"
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
remediation: |
|
||||
Not applicable. MicroK8s used dqlite and the communication to this service is done through a
|
||||
local socket (/var/snap/microk8s/current/var/kubernetes/backend/kine.sock:12379) accessible
|
||||
to users with root permissions.
|
||||
scored: false
|
||||
|
||||
- id: 2.3
|
||||
text: "Ensure that the --auto-tls argument is not set to true (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--auto-tls"
|
||||
env: "ETCD_AUTO_TLS"
|
||||
set: false
|
||||
- flag: "--auto-tls"
|
||||
env: "ETCD_AUTO_TLS"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
Not applicable. MicroK8s used dqlite and the communication to this service is done through a
|
||||
local socket (/var/snap/microk8s/current/var/kubernetes/backend/kine.sock:12379) accessible
|
||||
to users with root permissions.
|
||||
scored: false
|
||||
|
||||
- id: 2.4
|
||||
text: "Ensure that the --peer-cert-file and --peer-key-file arguments are set as appropriate (Automated)"
|
||||
audit: "if test -e /var/snap/microk8s/current/var/kubernetes/backend/cluster.crt && test -e /var/snap/microk8s/current/var/kubernetes/backend/cluster.key; then echo 'certs-found'; fi"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "certs-found"
|
||||
remediation: |
|
||||
The certificate pair for dqlite and tls peer communication is
|
||||
/var/snap/microk8s/current/var/kubernetes/backend/cluster.crt and
|
||||
/var/snap/microk8s/current/var/kubernetes/backend/cluster.key.
|
||||
scored: true
|
||||
|
||||
- id: 2.5
|
||||
text: "Ensure that the --peer-client-cert-auth argument is set to true (Automated)"
|
||||
audit: "/bin/cat $etcdconf | /bin/grep enable-tls || true"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--enable-tls"
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
- flag: "--enable-tls"
|
||||
set: false
|
||||
remediation: |
|
||||
MicroK8s used dqlite and tls peer communication uses is TLS if the --enable-tls is set in
|
||||
/var/snap/microk8s/current/args/k8s-dqlite, set to true by default.
|
||||
scored: true
|
||||
|
||||
- id: 2.6
|
||||
text: "Ensure that the --peer-auto-tls argument is not set to true (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--peer-auto-tls"
|
||||
env: "ETCD_PEER_AUTO_TLS"
|
||||
set: false
|
||||
- flag: "--peer-auto-tls"
|
||||
env: "ETCD_PEER_AUTO_TLS"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
Not applicable. MicroK8s used dqlite and tls peer communication uses the certificates
|
||||
created upon the snap creation.
|
||||
scored: false
|
||||
|
||||
- id: 2.7
|
||||
text: "Ensure that a unique Certificate Authority is used for etcd (Manual)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--trusted-ca-file"
|
||||
env: "ETCD_TRUSTED_CA_FILE"
|
||||
remediation: |
|
||||
Not applicable. MicroK8s used dqlite and tls peer communication uses the certificates
|
||||
created upon the snap creation.
|
||||
scored: false
|
||||
948
cfg/cis-1.24-microk8s/master.yaml
Normal file
948
cfg/cis-1.24-microk8s/master.yaml
Normal file
@@ -0,0 +1,948 @@
|
||||
---
|
||||
controls:
|
||||
version: "cis-1.24"
|
||||
id: 1
|
||||
text: "Control Plane Security Configuration"
|
||||
type: "master"
|
||||
groups:
|
||||
- id: 1.1
|
||||
text: "Control Plane Node Configuration Files"
|
||||
checks:
|
||||
- id: 1.1.1
|
||||
text: "Ensure that the API server pod specification file permissions are set to 644 or more restrictive (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $apiserverconf; then stat -c permissions=%a $apiserverconf; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "644"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the
|
||||
control plane node.
|
||||
For example, chmod 644 $apiserverconf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.2
|
||||
text: "Ensure that the API server pod specification file ownership is set to root:root (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $apiserverconf; then stat -c %U:%G $apiserverconf; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chown root:root $apiserverconf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.3
|
||||
text: "Ensure that the controller manager pod specification file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $controllermanagerconf; then stat -c permissions=%a $controllermanagerconf; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chmod 600 $controllermanagerconf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.4
|
||||
text: "Ensure that the controller manager pod specification file ownership is set to root:root (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $controllermanagerconf; then stat -c %U:%G $controllermanagerconf; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chown root:root $controllermanagerconf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.5
|
||||
text: "Ensure that the scheduler pod specification file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $schedulerconf; then stat -c permissions=%a $schedulerconf; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chmod 600 $schedulerconf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.6
|
||||
text: "Ensure that the scheduler pod specification file ownership is set to root:root (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $schedulerconf; then stat -c %U:%G $schedulerconf; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chown root:root $schedulerconf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.7
|
||||
text: "Ensure that the etcd pod specification file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $etcdconf; then stat -c permissions=%a $etcdconf; fi'"
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chmod 600 $etcdconf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.8
|
||||
text: "Ensure that the etcd pod specification file ownership is set to root:root (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $etcdconf; then stat -c %U:%G $etcdconf; fi'"
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chown root:root $etcdconf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.9
|
||||
text: "Ensure that the Container Network Interface file permissions are set to 600 or more restrictive (Manual)"
|
||||
audit: |
|
||||
find /var/snap/microk8s/current/args/cni-network/10-calico.conflist -type f 2> /dev/null | xargs --no-run-if-empty stat -c permissions=%a
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chmod 600 <path/to/cni/files>
|
||||
scored: false
|
||||
|
||||
- id: 1.1.10
|
||||
text: "Ensure that the Container Network Interface file ownership is set to root:root (Manual)"
|
||||
audit: |
|
||||
ps -ef | grep $kubeletbin | grep -- --cni-conf-dir | sed 's%.*cni-conf-dir[= ]\([^ ]*\).*%\1%' | xargs -I{} find {} -mindepth 1 | xargs --no-run-if-empty stat -c %U:%G
|
||||
find /var/snap/microk8s/current/args/cni-network/10-calico.conflist -type f 2> /dev/null | xargs --no-run-if-empty stat -c %U:%G
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chown root:root <path/to/cni/files>
|
||||
scored: false
|
||||
|
||||
# Etcd is not running on MicroK8s master nodes
|
||||
- id: 1.1.11
|
||||
text: "Ensure that the etcd data directory permissions are set to 700 or more restrictive (Automated)"
|
||||
audit: |
|
||||
DATA_DIR='/var/snap/microk8s/current/var/kubernetes/backend/'
|
||||
if ! test -d "$DATA_DIR"; then DATA_DIR=$etcddatadir; fi
|
||||
stat -c permissions=%a "$DATA_DIR"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "700"
|
||||
remediation: |
|
||||
On the etcd server node, get the etcd data directory, passed as an argument --data-dir,
|
||||
from the command 'ps -ef | grep etcd'.
|
||||
Run the below command (based on the etcd data directory found above). For example,
|
||||
chmod 700 /var/snap/microk8s/current/var/kubernetes/backend/
|
||||
scored: true
|
||||
|
||||
# Etcd is not running on MicroK8s master nodes
|
||||
- id: 1.1.12
|
||||
text: "Ensure that the etcd data directory ownership is set to etcd:etcd (Automated)"
|
||||
audit: |
|
||||
DATA_DIR='/var/snap/microk8s/current/var/kubernetes/backend/'
|
||||
if ! test -d "$DATA_DIR"; then DATA_DIR=$etcddatadir; fi
|
||||
stat -c %U:%G "$DATA_DIR"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
On the etcd server node, get the etcd data directory, passed as an argument --data-dir,
|
||||
from the command 'ps -ef | grep etcd'.
|
||||
Run the below command (based on the etcd data directory found above).
|
||||
For example, chown root:root /var/snap/microk8s/current/var/kubernetes/backend/
|
||||
scored: true
|
||||
|
||||
- id: 1.1.13
|
||||
text: "Ensure that the admin.conf file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e /var/snap/microk8s/current/credentials/client.config; then stat -c permissions=%a /var/snap/microk8s/current/credentials/client.config; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chmod 600 /var/snap/microk8s/current/credentials/client.config
|
||||
scored: true
|
||||
|
||||
- id: 1.1.14
|
||||
text: "Ensure that the admin.conf file ownership is set to root:root (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e /var/snap/microk8s/current/credentials/client.config; then stat -c %U:%G /var/snap/microk8s/current/credentials/client.config; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chown root:root /var/snap/microk8s/current/credentials/client.config
|
||||
scored: true
|
||||
|
||||
- id: 1.1.15
|
||||
text: "Ensure that the scheduler.conf file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $schedulerkubeconfig; then stat -c permissions=%a $schedulerkubeconfig; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chmod 600 $schedulerkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 1.1.16
|
||||
text: "Ensure that the scheduler.conf file ownership is set to root:root (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $schedulerkubeconfig; then stat -c %U:%G $schedulerkubeconfig; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chown root:root $schedulerkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 1.1.17
|
||||
text: "Ensure that the controller-manager.conf file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $controllermanagerkubeconfig; then stat -c permissions=%a $controllermanagerkubeconfig; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chmod 600 $controllermanagerkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 1.1.18
|
||||
text: "Ensure that the controller-manager.conf file ownership is set to root:root (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $controllermanagerkubeconfig; then stat -c %U:%G $controllermanagerkubeconfig; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chown root:root $controllermanagerkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 1.1.19
|
||||
text: "Ensure that the Kubernetes PKI directory and file ownership is set to root:root (Automated)"
|
||||
audit: "find /var/snap/microk8s/current/certs/ | xargs stat -c %U:%G"
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chown -R root:root /var/snap/microk8s/current/certs/
|
||||
scored: true
|
||||
|
||||
- id: 1.1.20
|
||||
text: "Ensure that the Kubernetes PKI certificate file permissions are set to 600 or more restrictive (Manual)"
|
||||
audit: "find /var/snap/microk8s/current/certs/ -name '*.crt' | xargs stat -c permissions=%a"
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chmod -R 600 /var/snap/microk8s/current/certs/*.crt
|
||||
scored: false
|
||||
|
||||
- id: 1.1.21
|
||||
text: "Ensure that the Kubernetes PKI key file permissions are set to 600 (Manual)"
|
||||
audit: "find /var/snap/microk8s/current/certs/ -name '*.key' | xargs stat -c permissions=%a"
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chmod -R 600 /var/snap/microk8s/current/certs/*.key
|
||||
scored: false
|
||||
|
||||
- id: 1.2
|
||||
text: "API Server"
|
||||
checks:
|
||||
- id: 1.2.1
|
||||
text: "Ensure that the --anonymous-auth argument is set to false (Manual)"
|
||||
audit: "cat $apiserverconf | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--anonymous-auth"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
- flag: "--anonymous-auth"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the below parameter.
|
||||
--anonymous-auth=false
|
||||
scored: false
|
||||
|
||||
- id: 1.2.2
|
||||
text: "Ensure that the --token-auth-file parameter is not set (Automated)"
|
||||
audit: "cat $apiserverconf | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--token-auth-file"
|
||||
set: false
|
||||
remediation: |
|
||||
Follow the documentation and configure alternate mechanisms for authentication. Then,
|
||||
edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and remove the --token-auth-file=<filename> parameter.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.3
|
||||
text: "Ensure that the --DenyServiceExternalIPs is not set (Automated)"
|
||||
audit: "cat $apiserverconf | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--enable-admission-plugins"
|
||||
compare:
|
||||
op: nothave
|
||||
value: "DenyServiceExternalIPs"
|
||||
- flag: "--enable-admission-plugins"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and remove the `DenyServiceExternalIPs`
|
||||
from enabled admission plugins.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.4
|
||||
text: "Ensure that the --kubelet-client-certificate and --kubelet-client-key arguments are set as appropriate (Automated)"
|
||||
audit: "cat $apiserverconf | grep -v grep"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "--kubelet-client-certificate"
|
||||
- flag: "--kubelet-client-key"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and set up the TLS connection between the
|
||||
apiserver and kubelets. Then, edit API server pod specification file
|
||||
$apiserverconf on the control plane node and set the
|
||||
kubelet client certificate and key parameters as below.
|
||||
--kubelet-client-certificate=<path/to/client-certificate-file>
|
||||
--kubelet-client-key=<path/to/client-key-file>
|
||||
scored: true
|
||||
|
||||
- id: 1.2.5
|
||||
text: "Ensure that the --kubelet-certificate-authority argument is set as appropriate (Automated)"
|
||||
audit: "cat $apiserverconf | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--kubelet-certificate-authority"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and setup the TLS connection between
|
||||
the apiserver and kubelets. Then, edit the API server pod specification file
|
||||
$apiserverconf on the control plane node and set the
|
||||
--kubelet-certificate-authority parameter to the path to the cert file for the certificate authority.
|
||||
--kubelet-certificate-authority=<ca-string>
|
||||
scored: true
|
||||
|
||||
- id: 1.2.6
|
||||
text: "Ensure that the --authorization-mode argument is not set to AlwaysAllow (Automated)"
|
||||
audit: "cat $apiserverconf | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--authorization-mode"
|
||||
compare:
|
||||
op: nothave
|
||||
value: "AlwaysAllow"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --authorization-mode parameter to values other than AlwaysAllow.
|
||||
One such example could be as below.
|
||||
--authorization-mode=RBAC
|
||||
scored: true
|
||||
|
||||
- id: 1.2.7
|
||||
text: "Ensure that the --authorization-mode argument includes Node (Automated)"
|
||||
audit: "cat $apiserverconf | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--authorization-mode"
|
||||
compare:
|
||||
op: has
|
||||
value: "Node"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --authorization-mode parameter to a value that includes Node.
|
||||
--authorization-mode=Node,RBAC
|
||||
scored: true
|
||||
|
||||
- id: 1.2.8
|
||||
text: "Ensure that the --authorization-mode argument includes RBAC (Automated)"
|
||||
audit: "cat $apiserverconf | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--authorization-mode"
|
||||
compare:
|
||||
op: has
|
||||
value: "RBAC"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --authorization-mode parameter to a value that includes RBAC,
|
||||
for example `--authorization-mode=Node,RBAC`.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.9
|
||||
text: "Ensure that the admission control plugin EventRateLimit is set (Manual)"
|
||||
audit: "cat $apiserverconf | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--enable-admission-plugins"
|
||||
compare:
|
||||
op: has
|
||||
value: "EventRateLimit"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and set the desired limits in a configuration file.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
and set the below parameters.
|
||||
--enable-admission-plugins=...,EventRateLimit,...
|
||||
--admission-control-config-file=<path/to/configuration/file>
|
||||
scored: false
|
||||
|
||||
- id: 1.2.10
|
||||
text: "Ensure that the admission control plugin AlwaysAdmit is not set (Automated)"
|
||||
audit: "cat $apiserverconf | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--enable-admission-plugins"
|
||||
compare:
|
||||
op: nothave
|
||||
value: AlwaysAdmit
|
||||
- flag: "--enable-admission-plugins"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and either remove the --enable-admission-plugins parameter, or set it to a
|
||||
value that does not include AlwaysAdmit.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.11
|
||||
text: "Ensure that the admission control plugin AlwaysPullImages is set (Manual)"
|
||||
audit: "cat $apiserverconf | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--enable-admission-plugins"
|
||||
compare:
|
||||
op: has
|
||||
value: "AlwaysPullImages"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --enable-admission-plugins parameter to include
|
||||
AlwaysPullImages.
|
||||
--enable-admission-plugins=...,AlwaysPullImages,...
|
||||
scored: false
|
||||
|
||||
- id: 1.2.12
|
||||
text: "Ensure that the admission control plugin SecurityContextDeny is set if PodSecurityPolicy is not used (Manual)"
|
||||
audit: "cat $apiserverconf | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--enable-admission-plugins"
|
||||
compare:
|
||||
op: has
|
||||
value: "SecurityContextDeny"
|
||||
- flag: "--enable-admission-plugins"
|
||||
compare:
|
||||
op: has
|
||||
value: "PodSecurityPolicy"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --enable-admission-plugins parameter to include
|
||||
SecurityContextDeny, unless PodSecurityPolicy is already in place.
|
||||
--enable-admission-plugins=...,SecurityContextDeny,...
|
||||
scored: false
|
||||
|
||||
- id: 1.2.13
|
||||
text: "Ensure that the admission control plugin ServiceAccount is set (Automated)"
|
||||
audit: "cat $apiserverconf | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--disable-admission-plugins"
|
||||
compare:
|
||||
op: nothave
|
||||
value: "ServiceAccount"
|
||||
- flag: "--disable-admission-plugins"
|
||||
set: false
|
||||
remediation: |
|
||||
Follow the documentation and create ServiceAccount objects as per your environment.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and ensure that the --disable-admission-plugins parameter is set to a
|
||||
value that does not include ServiceAccount.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.14
|
||||
text: "Ensure that the admission control plugin NamespaceLifecycle is set (Automated)"
|
||||
audit: "cat $apiserverconf | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--disable-admission-plugins"
|
||||
compare:
|
||||
op: nothave
|
||||
value: "NamespaceLifecycle"
|
||||
- flag: "--disable-admission-plugins"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --disable-admission-plugins parameter to
|
||||
ensure it does not include NamespaceLifecycle.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.15
|
||||
text: "Ensure that the admission control plugin NodeRestriction is set (Automated)"
|
||||
audit: "cat $apiserverconf | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--enable-admission-plugins"
|
||||
compare:
|
||||
op: has
|
||||
value: "NodeRestriction"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and configure NodeRestriction plug-in on kubelets.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --enable-admission-plugins parameter to a
|
||||
value that includes NodeRestriction.
|
||||
--enable-admission-plugins=...,NodeRestriction,...
|
||||
scored: true
|
||||
|
||||
- id: 1.2.16
|
||||
text: "Ensure that the --secure-port argument is not set to 0 (Automated)"
|
||||
audit: "cat $apiserverconf | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--secure-port"
|
||||
compare:
|
||||
op: gt
|
||||
value: 0
|
||||
- flag: "--secure-port"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and either remove the --secure-port parameter or
|
||||
set it to a different (non-zero) desired port.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.17
|
||||
text: "Ensure that the --profiling argument is set to false (Automated)"
|
||||
audit: "cat $apiserverconf | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--profiling"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the below parameter.
|
||||
--profiling=false
|
||||
scored: true
|
||||
|
||||
- id: 1.2.18
|
||||
text: "Ensure that the --audit-log-path argument is set (Automated)"
|
||||
audit: "cat $apiserverconf | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--audit-log-path"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --audit-log-path parameter to a suitable path and
|
||||
file where you would like audit logs to be written, for example,
|
||||
--audit-log-path=/var/log/apiserver/audit.log
|
||||
scored: true
|
||||
|
||||
- id: 1.2.19
|
||||
text: "Ensure that the --audit-log-maxage argument is set to 30 or as appropriate (Automated)"
|
||||
audit: "cat $apiserverconf | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--audit-log-maxage"
|
||||
compare:
|
||||
op: gte
|
||||
value: 30
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --audit-log-maxage parameter to 30
|
||||
or as an appropriate number of days, for example,
|
||||
--audit-log-maxage=30
|
||||
scored: true
|
||||
|
||||
- id: 1.2.20
|
||||
text: "Ensure that the --audit-log-maxbackup argument is set to 10 or as appropriate (Automated)"
|
||||
audit: "cat $apiserverconf | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--audit-log-maxbackup"
|
||||
compare:
|
||||
op: gte
|
||||
value: 10
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --audit-log-maxbackup parameter to 10 or to an appropriate
|
||||
value. For example,
|
||||
--audit-log-maxbackup=10
|
||||
scored: true
|
||||
|
||||
- id: 1.2.21
|
||||
text: "Ensure that the --audit-log-maxsize argument is set to 100 or as appropriate (Automated)"
|
||||
audit: "cat $apiserverconf | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--audit-log-maxsize"
|
||||
compare:
|
||||
op: gte
|
||||
value: 100
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --audit-log-maxsize parameter to an appropriate size in MB.
|
||||
For example, to set it as 100 MB, --audit-log-maxsize=100
|
||||
scored: true
|
||||
|
||||
- id: 1.2.22
|
||||
text: "Ensure that the --request-timeout argument is set as appropriate (Manual)"
|
||||
audit: "cat $apiserverconf | grep -v grep"
|
||||
type: manual
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
and set the below parameter as appropriate and if needed.
|
||||
For example, --request-timeout=300s
|
||||
scored: false
|
||||
|
||||
- id: 1.2.23
|
||||
text: "Ensure that the --service-account-lookup argument is set to true (Automated)"
|
||||
audit: "cat $apiserverconf | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--service-account-lookup"
|
||||
set: false
|
||||
- flag: "--service-account-lookup"
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the below parameter.
|
||||
--service-account-lookup=true
|
||||
Alternatively, you can delete the --service-account-lookup parameter from this file so
|
||||
that the default takes effect.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.24
|
||||
text: "Ensure that the --service-account-key-file argument is set as appropriate (Automated)"
|
||||
audit: "cat $apiserverconf | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--service-account-key-file"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --service-account-key-file parameter
|
||||
to the public key file for service accounts. For example,
|
||||
--service-account-key-file=<filename>
|
||||
scored: true
|
||||
|
||||
# MicroK8s does not use etcd. The API server talk to a local dqlite instance
|
||||
- id: 1.2.25
|
||||
text: "Ensure that the --etcd-certfile and --etcd-keyfile arguments are set as appropriate (Automated)"
|
||||
audit: "cat $apiserverconf | grep -v grep"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "--etcd-certfile"
|
||||
- flag: "--etcd-keyfile"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and set up the TLS connection between the apiserver and etcd.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the etcd certificate and key file parameters.
|
||||
--etcd-certfile=<path/to/client-certificate-file>
|
||||
--etcd-keyfile=<path/to/client-key-file>
|
||||
scored: false
|
||||
|
||||
- id: 1.2.26
|
||||
text: "Ensure that the --tls-cert-file and --tls-private-key-file arguments are set as appropriate (Automated)"
|
||||
audit: "cat $apiserverconf | grep -v grep"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "--tls-cert-file"
|
||||
- flag: "--tls-private-key-file"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and set up the TLS connection on the apiserver.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the TLS certificate and private key file parameters.
|
||||
--tls-cert-file=<path/to/tls-certificate-file>
|
||||
--tls-private-key-file=<path/to/tls-key-file>
|
||||
scored: true
|
||||
|
||||
- id: 1.2.27
|
||||
text: "Ensure that the --client-ca-file argument is set as appropriate (Automated)"
|
||||
audit: "cat $apiserverconf | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--client-ca-file"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and set up the TLS connection on the apiserver.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the client certificate authority file.
|
||||
--client-ca-file=<path/to/client-ca-file>
|
||||
scored: true
|
||||
|
||||
- id: 1.2.28
|
||||
text: "Ensure that the --etcd-cafile argument is set as appropriate (Automated)"
|
||||
audit: "cat $apiserverconf | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--etcd-cafile"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and set up the TLS connection between the apiserver and etcd.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the etcd certificate authority file parameter.
|
||||
--etcd-cafile=<path/to/ca-file>
|
||||
scored: false
|
||||
|
||||
- id: 1.2.29
|
||||
text: "Ensure that the --encryption-provider-config argument is set as appropriate (Manual)"
|
||||
audit: "cat $apiserverconf | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--encryption-provider-config"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and configure a EncryptionConfig file.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --encryption-provider-config parameter to the path of that file.
|
||||
For example, --encryption-provider-config=</path/to/EncryptionConfig/File>
|
||||
scored: false
|
||||
|
||||
- id: 1.2.30
|
||||
text: "Ensure that encryption providers are appropriately configured (Manual)"
|
||||
audit: |
|
||||
ENCRYPTION_PROVIDER_CONFIG=$(cat $apiserverconf | grep -- --encryption-provider-config | sed 's%.*encryption-provider-config[= ]\([^ ]*\).*%\1%')
|
||||
if test -e $ENCRYPTION_PROVIDER_CONFIG; then grep -A1 'providers:' $ENCRYPTION_PROVIDER_CONFIG | tail -n1 | grep -o "[A-Za-z]*" | sed 's/^/provider=/'; fi
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "provider"
|
||||
compare:
|
||||
op: valid_elements
|
||||
value: "aescbc,kms,secretbox"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and configure a EncryptionConfig file.
|
||||
In this file, choose aescbc, kms or secretbox as the encryption provider.
|
||||
scored: false
|
||||
|
||||
- id: 1.2.31
|
||||
text: "Ensure that the API Server only makes use of Strong Cryptographic Ciphers (Manual)"
|
||||
audit: "cat $apiserverconf | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--tls-cipher-suites"
|
||||
compare:
|
||||
op: valid_elements
|
||||
value: "TLS_AES_128_GCM_SHA256,TLS_AES_256_GCM_SHA384,TLS_CHACHA20_POLY1305_SHA256,TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256,TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256,TLS_RSA_WITH_3DES_EDE_CBC_SHA,TLS_RSA_WITH_AES_128_CBC_SHA,TLS_RSA_WITH_AES_128_GCM_SHA256,TLS_RSA_WITH_AES_256_CBC_SHA,TLS_RSA_WITH_AES_256_GCM_SHA384"
|
||||
remediation: |
|
||||
Edit the API server pod specification file /etc/kubernetes/manifests/kube-apiserver.yaml
|
||||
on the control plane node and set the below parameter.
|
||||
--tls-cipher-suites=TLS_AES_128_GCM_SHA256,TLS_AES_256_GCM_SHA384,TLS_CHACHA20_POLY1305_SHA256,
|
||||
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
|
||||
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
|
||||
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256,
|
||||
TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
|
||||
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,
|
||||
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256,TLS_RSA_WITH_3DES_EDE_CBC_SHA,TLS_RSA_WITH_AES_128_CBC_SHA,
|
||||
TLS_RSA_WITH_AES_128_GCM_SHA256,TLS_RSA_WITH_AES_256_CBC_SHA,TLS_RSA_WITH_AES_256_GCM_SHA384
|
||||
scored: false
|
||||
|
||||
- id: 1.3
|
||||
text: "Controller Manager"
|
||||
checks:
|
||||
- id: 1.3.1
|
||||
text: "Ensure that the --terminated-pod-gc-threshold argument is set as appropriate (Manual)"
|
||||
audit: "cat $controllermanagerconf | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--terminated-pod-gc-threshold"
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node and set the --terminated-pod-gc-threshold to an appropriate threshold,
|
||||
for example, --terminated-pod-gc-threshold=10
|
||||
scored: false
|
||||
|
||||
- id: 1.3.2
|
||||
text: "Ensure that the --profiling argument is set to false (Automated)"
|
||||
audit: "cat $controllermanagerconf | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--profiling"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node and set the below parameter.
|
||||
--profiling=false
|
||||
scored: true
|
||||
|
||||
- id: 1.3.3
|
||||
text: "Ensure that the --use-service-account-credentials argument is set to true (Automated)"
|
||||
audit: "cat $controllermanagerconf | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--use-service-account-credentials"
|
||||
compare:
|
||||
op: noteq
|
||||
value: false
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node to set the below parameter.
|
||||
--use-service-account-credentials=true
|
||||
scored: true
|
||||
|
||||
- id: 1.3.4
|
||||
text: "Ensure that the --service-account-private-key-file argument is set as appropriate (Automated)"
|
||||
audit: "cat $controllermanagerconf | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--service-account-private-key-file"
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node and set the --service-account-private-key-file parameter
|
||||
to the private key file for service accounts.
|
||||
--service-account-private-key-file=<filename>
|
||||
scored: true
|
||||
|
||||
- id: 1.3.5
|
||||
text: "Ensure that the --root-ca-file argument is set as appropriate (Automated)"
|
||||
audit: "cat $controllermanagerconf | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--root-ca-file"
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node and set the --root-ca-file parameter to the certificate bundle file`.
|
||||
--root-ca-file=<path/to/file>
|
||||
scored: true
|
||||
|
||||
- id: 1.3.6
|
||||
text: "Ensure that the RotateKubeletServerCertificate argument is set to true (Automated)"
|
||||
audit: "cat $controllermanagerconf | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--feature-gates"
|
||||
compare:
|
||||
op: nothave
|
||||
value: "RotateKubeletServerCertificate=false"
|
||||
set: true
|
||||
- flag: "--feature-gates"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node and set the --feature-gates parameter to include RotateKubeletServerCertificate=true.
|
||||
--feature-gates=RotateKubeletServerCertificate=true
|
||||
scored: true
|
||||
|
||||
- id: 1.3.7
|
||||
text: "Ensure that the --bind-address argument is set to 127.0.0.1 (Automated)"
|
||||
audit: "cat $controllermanagerconf | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--bind-address"
|
||||
compare:
|
||||
op: eq
|
||||
value: "127.0.0.1"
|
||||
- flag: "--bind-address"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node and ensure the correct value for the --bind-address parameter
|
||||
scored: true
|
||||
|
||||
- id: 1.4
|
||||
text: "Scheduler"
|
||||
checks:
|
||||
- id: 1.4.1
|
||||
text: "Ensure that the --profiling argument is set to false (Automated)"
|
||||
audit: "cat $schedulerconf | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--profiling"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
Edit the Scheduler pod specification file $schedulerconf file
|
||||
on the control plane node and set the below parameter.
|
||||
--profiling=false
|
||||
scored: true
|
||||
|
||||
- id: 1.4.2
|
||||
text: "Ensure that the --bind-address argument is set to 127.0.0.1 (Automated)"
|
||||
audit: "cat $schedulerconf | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--bind-address"
|
||||
compare:
|
||||
op: eq
|
||||
value: "127.0.0.1"
|
||||
- flag: "--bind-address"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the Scheduler pod specification file $schedulerconf
|
||||
on the control plane node and ensure the correct value for the --bind-address parameter
|
||||
scored: true
|
||||
458
cfg/cis-1.24-microk8s/node.yaml
Normal file
458
cfg/cis-1.24-microk8s/node.yaml
Normal file
@@ -0,0 +1,458 @@
|
||||
---
|
||||
controls:
|
||||
version: "cis-1.24"
|
||||
id: 4
|
||||
text: "Worker Node Security Configuration"
|
||||
type: "node"
|
||||
groups:
|
||||
- id: 4.1
|
||||
text: "Worker Node Configuration Files"
|
||||
checks:
|
||||
- id: 4.1.1
|
||||
text: "Ensure that the kubelet service file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $kubeletsvc; then stat -c permissions=%a $kubeletsvc; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example, chmod 600 $kubeletsvc
|
||||
scored: true
|
||||
|
||||
- id: 4.1.2
|
||||
text: "Ensure that the kubelet service file ownership is set to root:root (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $kubeletsvc; then stat -c %U:%G $kubeletsvc; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chown root:root $kubeletsvc
|
||||
scored: true
|
||||
|
||||
- id: 4.1.3
|
||||
text: "If proxy kubeconfig file exists ensure permissions are set to 600 or more restrictive (Manual)"
|
||||
audit: "/bin/sh -c 'if test -e $proxykubeconfig; then stat -c permissions=%a $proxykubeconfig; fi' "
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
set: true
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chmod 600 $proxykubeconfig
|
||||
scored: false
|
||||
|
||||
- id: 4.1.4
|
||||
text: "If proxy kubeconfig file exists ensure ownership is set to root:root (Manual)"
|
||||
audit: "/bin/sh -c 'if test -e $proxykubeconfig; then stat -c %U:%G $proxykubeconfig; fi' "
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example, chown root:root $proxykubeconfig
|
||||
scored: false
|
||||
|
||||
- id: 4.1.5
|
||||
text: "Ensure that the --kubeconfig kubelet.conf file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $kubeletkubeconfig; then stat -c permissions=%a $kubeletkubeconfig; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chmod 600 $kubeletkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 4.1.6
|
||||
text: "Ensure that the --kubeconfig kubelet.conf file ownership is set to root:root (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $kubeletkubeconfig; then stat -c %U:%G $kubeletkubeconfig; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chown root:root $kubeletkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 4.1.7
|
||||
text: "Ensure that the certificate authorities file permissions are set to 600 or more restrictive (Manual)"
|
||||
audit: |
|
||||
CAFILE=$(ps -ef | grep kubelet | grep -v apiserver | grep -- --client-ca-file= | awk -F '--client-ca-file=' '{print $2}' | awk '{print $1}')
|
||||
if test -z $CAFILE; then CAFILE=$kubeletcafile; fi
|
||||
if test -e $CAFILE; then stat -c permissions=%a $CAFILE; fi
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the following command to modify the file permissions of the
|
||||
--client-ca-file chmod 600 <filename>
|
||||
scored: false
|
||||
|
||||
- id: 4.1.8
|
||||
text: "Ensure that the client certificate authorities file ownership is set to root:root (Manual)"
|
||||
audit: |
|
||||
CAFILE=$(ps -ef | grep kubelet | grep -v apiserver | grep -- --client-ca-file= | awk -F '--client-ca-file=' '{print $2}' | awk '{print $1}')
|
||||
if test -z $CAFILE; then CAFILE=$kubeletcafile; fi
|
||||
if test -e $CAFILE; then stat -c %U:%G $CAFILE; fi
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
compare:
|
||||
op: eq
|
||||
value: root:root
|
||||
remediation: |
|
||||
Run the following command to modify the ownership of the --client-ca-file.
|
||||
chown root:root <filename>
|
||||
scored: false
|
||||
|
||||
- id: 4.1.9
|
||||
text: "If the kubelet config.yaml configuration file is being used validate permissions set to 600 or more restrictive (Manual)"
|
||||
audit: "/bin/sh -c 'if test -e $kubeletconf; then stat -c permissions=%a $kubeletconf; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the following command (using the config file location identified in the Audit step)
|
||||
chmod 600 $kubeletconf
|
||||
scored: false
|
||||
|
||||
- id: 4.1.10
|
||||
text: "If the kubelet config.yaml configuration file is being used validate file ownership is set to root:root (Manual)"
|
||||
audit: "/bin/sh -c 'if test -e $kubeletconf; then stat -c %U:%G $kubeletconf; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Run the following command (using the config file location identified in the Audit step)
|
||||
chown root:root $kubeletconf
|
||||
scored: false
|
||||
|
||||
- id: 4.2
|
||||
text: "Kubelet"
|
||||
checks:
|
||||
- id: 4.2.1
|
||||
text: "Ensure that the --anonymous-auth argument is set to false (Automated)"
|
||||
audit: "cat $kubeletconf"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--anonymous-auth"
|
||||
path: "{.authentication.anonymous.enabled}"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `authentication: anonymous: enabled` to
|
||||
`false`.
|
||||
If using executable arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
`--anonymous-auth=false`
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.2
|
||||
text: "Ensure that the --authorization-mode argument is not set to AlwaysAllow (Automated)"
|
||||
audit: "cat $kubeletconf"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --authorization-mode
|
||||
path: "{.authorization.mode}"
|
||||
compare:
|
||||
op: nothave
|
||||
value: AlwaysAllow
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `authorization.mode` to Webhook. If
|
||||
using executable arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_AUTHZ_ARGS variable.
|
||||
--authorization-mode=Webhook
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.3
|
||||
text: "Ensure that the --client-ca-file argument is set as appropriate (Automated)"
|
||||
audit: "cat $kubeletconf"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --client-ca-file
|
||||
path: "{.authentication.x509.clientCAFile}"
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `authentication.x509.clientCAFile` to
|
||||
the location of the client CA file.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_AUTHZ_ARGS variable.
|
||||
--client-ca-file=<path/to/client-ca-file>
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.4
|
||||
text: "Verify that the --read-only-port argument is set to 0 (Manual)"
|
||||
audit: "cat $kubeletconf"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--read-only-port"
|
||||
path: "{.readOnlyPort}"
|
||||
compare:
|
||||
op: eq
|
||||
value: 0
|
||||
- flag: "--read-only-port"
|
||||
path: "{.readOnlyPort}"
|
||||
set: false
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `readOnlyPort` to 0.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
--read-only-port=0
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.5
|
||||
text: "Ensure that the --streaming-connection-idle-timeout argument is not set to 0 (Manual)"
|
||||
audit: "cat $kubeletconf"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --streaming-connection-idle-timeout
|
||||
path: "{.streamingConnectionIdleTimeout}"
|
||||
compare:
|
||||
op: noteq
|
||||
value: 0
|
||||
- flag: --streaming-connection-idle-timeout
|
||||
path: "{.streamingConnectionIdleTimeout}"
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `streamingConnectionIdleTimeout` to a
|
||||
value other than 0.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
--streaming-connection-idle-timeout=5m
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.6
|
||||
text: "Ensure that the --protect-kernel-defaults argument is set to true (Automated)"
|
||||
audit: "cat $kubeletconf"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --protect-kernel-defaults
|
||||
path: "{.protectKernelDefaults}"
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `protectKernelDefaults` to `true`.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
--protect-kernel-defaults=true
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.7
|
||||
text: "Ensure that the --make-iptables-util-chains argument is set to true (Automated)"
|
||||
audit: "cat $kubeletconf"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --make-iptables-util-chains
|
||||
path: "{.makeIPTablesUtilChains}"
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
- flag: --make-iptables-util-chains
|
||||
path: "{.makeIPTablesUtilChains}"
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `makeIPTablesUtilChains` to `true`.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
remove the --make-iptables-util-chains argument from the
|
||||
KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.8
|
||||
text: "Ensure that the --hostname-override argument is not set (Manual)"
|
||||
# This is one of those properties that can only be set as a command line argument.
|
||||
# To check if the property is set as expected, we need to parse the kubelet command
|
||||
# instead reading the Kubelet Configuration file.
|
||||
audit: "cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --hostname-override
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the kubelet service file $kubeletsvc
|
||||
on each worker node and remove the --hostname-override argument from the
|
||||
KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.9
|
||||
text: "Ensure that the eventRecordQPS argument is set to a level which ensures appropriate event capture (Manual)"
|
||||
audit: "cat $kubeletconf"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --event-qps
|
||||
path: "{.eventRecordQPS}"
|
||||
compare:
|
||||
op: eq
|
||||
value: 0
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `eventRecordQPS` to an appropriate level.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.10
|
||||
text: "Ensure that the --tls-cert-file and --tls-private-key-file arguments are set as appropriate (Manual)"
|
||||
audit: "cat $kubeletconf"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --tls-cert-file
|
||||
path: "{.tlsCertFile}"
|
||||
- flag: --tls-private-key-file
|
||||
path: "{.tlsPrivateKeyFile}"
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `tlsCertFile` to the location
|
||||
of the certificate file to use to identify this Kubelet, and `tlsPrivateKeyFile`
|
||||
to the location of the corresponding private key file.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameters in KUBELET_CERTIFICATE_ARGS variable.
|
||||
--tls-cert-file=<path/to/tls-certificate-file>
|
||||
--tls-private-key-file=<path/to/tls-key-file>
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.11
|
||||
text: "Ensure that the --rotate-certificates argument is not set to false (Automated)"
|
||||
audit: "cat $kubeletconf"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --rotate-certificates
|
||||
path: "{.rotateCertificates}"
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
- flag: --rotate-certificates
|
||||
path: "{.rotateCertificates}"
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to add the line `rotateCertificates` to `true` or
|
||||
remove it altogether to use the default value.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
remove --rotate-certificates=false argument from the KUBELET_CERTIFICATE_ARGS
|
||||
variable.
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.12
|
||||
text: "Verify that the RotateKubeletServerCertificate argument is set to true (Manual)"
|
||||
audit: "cat $kubeletconf"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: RotateKubeletServerCertificate
|
||||
path: "{.featureGates.RotateKubeletServerCertificate}"
|
||||
compare:
|
||||
op: nothave
|
||||
value: false
|
||||
- flag: RotateKubeletServerCertificate
|
||||
path: "{.featureGates.RotateKubeletServerCertificate}"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the kubelet service file $kubeletsvc
|
||||
on each worker node and set the below parameter in KUBELET_CERTIFICATE_ARGS variable.
|
||||
--feature-gates=RotateKubeletServerCertificate=true
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.13
|
||||
text: "Ensure that the Kubelet only makes use of Strong Cryptographic Ciphers (Manual)"
|
||||
audit: "cat $kubeletconf"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --tls-cipher-suites
|
||||
path: "{range .tlsCipherSuites[:]}{}{','}{end}"
|
||||
compare:
|
||||
op: valid_elements
|
||||
value: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `TLSCipherSuites` to
|
||||
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
|
||||
or to a subset of these values.
|
||||
If using executable arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the --tls-cipher-suites parameter as follows, or to a subset of these values.
|
||||
--tls-cipher-suites=TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
269
cfg/cis-1.24-microk8s/policies.yaml
Normal file
269
cfg/cis-1.24-microk8s/policies.yaml
Normal file
@@ -0,0 +1,269 @@
|
||||
---
|
||||
controls:
|
||||
version: "cis-1.24"
|
||||
id: 5
|
||||
text: "Kubernetes Policies"
|
||||
type: "policies"
|
||||
groups:
|
||||
- id: 5.1
|
||||
text: "RBAC and Service Accounts"
|
||||
checks:
|
||||
- id: 5.1.1
|
||||
text: "Ensure that the cluster-admin role is only used where required (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Identify all clusterrolebindings to the cluster-admin role. Check if they are used and
|
||||
if they need this role or if they could use a role with fewer privileges.
|
||||
Where possible, first bind users to a lower privileged role and then remove the
|
||||
clusterrolebinding to the cluster-admin role :
|
||||
kubectl delete clusterrolebinding [name]
|
||||
scored: false
|
||||
|
||||
- id: 5.1.2
|
||||
text: "Minimize access to secrets (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove get, list and watch access to Secret objects in the cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.3
|
||||
text: "Minimize wildcard use in Roles and ClusterRoles (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible replace any use of wildcards in clusterroles and roles with specific
|
||||
objects or actions.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.4
|
||||
text: "Minimize access to create pods (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove create access to pod objects in the cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.5
|
||||
text: "Ensure that default service accounts are not actively used. (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Create explicit service accounts wherever a Kubernetes workload requires specific access
|
||||
to the Kubernetes API server.
|
||||
Modify the configuration of each default service account to include this value
|
||||
automountServiceAccountToken: false
|
||||
scored: false
|
||||
|
||||
- id: 5.1.6
|
||||
text: "Ensure that Service Account Tokens are only mounted where necessary (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Modify the definition of pods and service accounts which do not need to mount service
|
||||
account tokens to disable it.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.7
|
||||
text: "Avoid use of system:masters group (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Remove the system:masters group from all users in the cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.8
|
||||
text: "Limit use of the Bind, Impersonate and Escalate permissions in the Kubernetes cluster (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove the impersonate, bind and escalate rights from subjects.
|
||||
scored: false
|
||||
|
||||
- id: 5.2
|
||||
text: "Pod Security Standards"
|
||||
checks:
|
||||
- id: 5.2.1
|
||||
text: "Ensure that the cluster has at least one active policy control mechanism in place (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Ensure that either Pod Security Admission or an external policy control system is in place
|
||||
for every namespace which contains user workloads.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.2
|
||||
text: "Minimize the admission of privileged containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of privileged containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.3
|
||||
text: "Minimize the admission of containers wishing to share the host process ID namespace (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of `hostPID` containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.4
|
||||
text: "Minimize the admission of containers wishing to share the host IPC namespace (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of `hostIPC` containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.5
|
||||
text: "Minimize the admission of containers wishing to share the host network namespace (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of `hostNetwork` containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.6
|
||||
text: "Minimize the admission of containers with allowPrivilegeEscalation (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers with `.spec.allowPrivilegeEscalation` set to `true`.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.7
|
||||
text: "Minimize the admission of root containers (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Create a policy for each namespace in the cluster, ensuring that either `MustRunAsNonRoot`
|
||||
or `MustRunAs` with the range of UIDs not including 0, is set.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.8
|
||||
text: "Minimize the admission of containers with the NET_RAW capability (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers with the `NET_RAW` capability.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.9
|
||||
text: "Minimize the admission of containers with added capabilities (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Ensure that `allowedCapabilities` is not present in policies for the cluster unless
|
||||
it is set to an empty array.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.10
|
||||
text: "Minimize the admission of containers with capabilities assigned (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Review the use of capabilities in applications running on your cluster. Where a namespace
|
||||
contains applications which do not require any Linux capabities to operate consider adding
|
||||
a PSP which forbids the admission of containers which do not drop all capabilities.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.11
|
||||
text: "Minimize the admission of Windows HostProcess containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers that have `.securityContext.windowsOptions.hostProcess` set to `true`.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.12
|
||||
text: "Minimize the admission of HostPath volumes (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers with `hostPath` volumes.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.13
|
||||
text: "Minimize the admission of containers which use HostPorts (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers which use `hostPort` sections.
|
||||
scored: false
|
||||
|
||||
- id: 5.3
|
||||
text: "Network Policies and CNI"
|
||||
checks:
|
||||
- id: 5.3.1
|
||||
text: "Ensure that the CNI in use supports NetworkPolicies (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
If the CNI plugin in use does not support network policies, consideration should be given to
|
||||
making use of a different plugin, or finding an alternate mechanism for restricting traffic
|
||||
in the Kubernetes cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.3.2
|
||||
text: "Ensure that all Namespaces have NetworkPolicies defined (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the documentation and create NetworkPolicy objects as you need them.
|
||||
scored: false
|
||||
|
||||
- id: 5.4
|
||||
text: "Secrets Management"
|
||||
checks:
|
||||
- id: 5.4.1
|
||||
text: "Prefer using Secrets as files over Secrets as environment variables (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
If possible, rewrite application code to read Secrets from mounted secret files, rather than
|
||||
from environment variables.
|
||||
scored: false
|
||||
|
||||
- id: 5.4.2
|
||||
text: "Consider external secret storage (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Refer to the Secrets management options offered by your cloud provider or a third-party
|
||||
secrets management solution.
|
||||
scored: false
|
||||
|
||||
- id: 5.5
|
||||
text: "Extensible Admission Control"
|
||||
checks:
|
||||
- id: 5.5.1
|
||||
text: "Configure Image Provenance using ImagePolicyWebhook admission controller (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and setup image provenance.
|
||||
scored: false
|
||||
|
||||
- id: 5.7
|
||||
text: "General Policies"
|
||||
checks:
|
||||
- id: 5.7.1
|
||||
text: "Create administrative boundaries between resources using namespaces (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the documentation and create namespaces for objects in your deployment as you need
|
||||
them.
|
||||
scored: false
|
||||
|
||||
- id: 5.7.2
|
||||
text: "Ensure that the seccomp profile is set to docker/default in your Pod definitions (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Use `securityContext` to enable the docker/default seccomp profile in your pod definitions.
|
||||
An example is as below:
|
||||
securityContext:
|
||||
seccompProfile:
|
||||
type: RuntimeDefault
|
||||
scored: false
|
||||
|
||||
- id: 5.7.3
|
||||
text: "Apply SecurityContext to your Pods and Containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and apply SecurityContexts to your Pods. For a
|
||||
suggested list of SecurityContexts, you may refer to the CIS Security Benchmark for Docker
|
||||
Containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.7.4
|
||||
text: "The default namespace should not be used (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Ensure that namespaces are created to allow for appropriate segregation of Kubernetes
|
||||
resources and that all new resources are created in a specific namespace.
|
||||
scored: false
|
||||
@@ -24,14 +24,16 @@ groups:
|
||||
|
||||
- id: 4.1.2
|
||||
text: "Ensure that the kubelet service file ownership is set to root:root (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletsvc; then stat -c %U:%G $kubeletsvc; fi'' '
|
||||
audit: '/bin/sh -c "if test -e $kubeletsvc; then stat -c %U:%G $kubeletsvc; else echo \"File not found\"; fi"'
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: root:root
|
||||
- flag: "File not found"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chown root:root $kubeletsvc
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chown root:root $kubeletsvc
|
||||
scored: true
|
||||
|
||||
- id: 4.1.3
|
||||
@@ -45,8 +47,6 @@ groups:
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
- flag: "$proxykubeconfig"
|
||||
set: false
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
@@ -60,8 +60,6 @@ groups:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: root:root
|
||||
- flag: "$proxykubeconfig"
|
||||
set: false
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example, chown root:root $proxykubeconfig
|
||||
|
||||
@@ -25,16 +25,17 @@ groups:
|
||||
scored: true
|
||||
|
||||
- id: 4.1.2
|
||||
text: "Ensure that the kubelet service file ownership is set to root:root (Scored)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletsvc; then stat -c %U:%G $kubeletsvc; fi'' '
|
||||
text: "Ensure that the kubelet service file ownership is set to root:root (Automated)"
|
||||
audit: '/bin/sh -c "if test -e $kubeletsvc; then stat -c %U:%G $kubeletsvc; else echo \"File not found\"; fi"'
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: root:root
|
||||
set: true
|
||||
- flag: "File not found"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chown root:root $kubeletsvc
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chown root:root $kubeletsvc
|
||||
scored: true
|
||||
|
||||
- id: 4.1.3
|
||||
@@ -48,8 +49,6 @@ groups:
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "644"
|
||||
- flag: "$proxykubeconfig"
|
||||
set: false
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
@@ -64,8 +63,6 @@ groups:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
set: true
|
||||
- flag: "$proxykubeconfig"
|
||||
set: false
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example, chown root:root $proxykubeconfig
|
||||
|
||||
@@ -25,10 +25,12 @@ groups:
|
||||
|
||||
- id: 4.1.2
|
||||
text: "Ensure that the kubelet service file ownership is set to root:root (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletsvc; then stat -c %U:%G $kubeletsvc; fi'' '
|
||||
audit: '/bin/sh -c "if test -e $kubeletsvc; then stat -c %U:%G $kubeletsvc; else echo \"File not found\"; fi"'
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: root:root
|
||||
- flag: "File not found"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
|
||||
@@ -24,14 +24,16 @@ groups:
|
||||
|
||||
- id: 4.1.2
|
||||
text: "Ensure that the kubelet service file ownership is set to root:root (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletsvc; then stat -c %U:%G $kubeletsvc; fi'' '
|
||||
audit: '/bin/sh -c "if test -e $kubeletsvc; then stat -c %U:%G $kubeletsvc; else echo \"File not found\"; fi"'
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: root:root
|
||||
- flag: "File not found"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chown root:root $kubeletsvc
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chown root:root $kubeletsvc
|
||||
scored: true
|
||||
|
||||
- id: 4.1.3
|
||||
@@ -45,8 +47,6 @@ groups:
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
- flag: "$proxykubeconfig"
|
||||
set: false
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
@@ -60,8 +60,6 @@ groups:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: root:root
|
||||
- flag: "$proxykubeconfig"
|
||||
set: false
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example, chown root:root $proxykubeconfig
|
||||
|
||||
2
cfg/cis-1.8/config.yaml
Normal file
2
cfg/cis-1.8/config.yaml
Normal file
@@ -0,0 +1,2 @@
|
||||
---
|
||||
## Version-specific settings that override the values in cfg/config.yaml
|
||||
60
cfg/cis-1.8/controlplane.yaml
Normal file
60
cfg/cis-1.8/controlplane.yaml
Normal file
@@ -0,0 +1,60 @@
|
||||
---
|
||||
controls:
|
||||
version: "cis-1.8"
|
||||
id: 3
|
||||
text: "Control Plane Configuration"
|
||||
type: "controlplane"
|
||||
groups:
|
||||
- id: 3.1
|
||||
text: "Authentication and Authorization"
|
||||
checks:
|
||||
- id: 3.1.1
|
||||
text: "Client certificate authentication should not be used for users (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Alternative mechanisms provided by Kubernetes such as the use of OIDC should be
|
||||
implemented in place of client certificates.
|
||||
scored: false
|
||||
- id: 3.1.2
|
||||
text: "Service account token authentication should not be used for users (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Alternative mechanisms provided by Kubernetes such as the use of OIDC should be implemented
|
||||
in place of service account tokens.
|
||||
scored: false
|
||||
- id: 3.1.3
|
||||
text: "Bootstrap token authentication should not be used for users (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Alternative mechanisms provided by Kubernetes such as the use of OIDC should be implemented
|
||||
in place of bootstrap tokens.
|
||||
scored: false
|
||||
|
||||
- id: 3.2
|
||||
text: "Logging"
|
||||
checks:
|
||||
- id: 3.2.1
|
||||
text: "Ensure that a minimal audit policy is created (Manual)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--audit-policy-file"
|
||||
set: true
|
||||
remediation: |
|
||||
Create an audit policy file for your cluster.
|
||||
scored: false
|
||||
|
||||
- id: 3.2.2
|
||||
text: "Ensure that the audit policy covers key security concerns (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Review the audit policy provided for the cluster and ensure that it covers
|
||||
at least the following areas,
|
||||
- Access to Secrets managed by the cluster. Care should be taken to only
|
||||
log Metadata for requests to Secrets, ConfigMaps, and TokenReviews, in
|
||||
order to avoid risk of logging sensitive data.
|
||||
- Modification of Pod and Deployment objects.
|
||||
- Use of `pods/exec`, `pods/portforward`, `pods/proxy` and `services/proxy`.
|
||||
For most requests, minimally logging at the Metadata level is recommended
|
||||
(the most basic level of logging).
|
||||
scored: false
|
||||
135
cfg/cis-1.8/etcd.yaml
Normal file
135
cfg/cis-1.8/etcd.yaml
Normal file
@@ -0,0 +1,135 @@
|
||||
---
|
||||
controls:
|
||||
version: "cis-1.8"
|
||||
id: 2
|
||||
text: "Etcd Node Configuration"
|
||||
type: "etcd"
|
||||
groups:
|
||||
- id: 2
|
||||
text: "Etcd Node Configuration"
|
||||
checks:
|
||||
- id: 2.1
|
||||
text: "Ensure that the --cert-file and --key-file arguments are set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "--cert-file"
|
||||
env: "ETCD_CERT_FILE"
|
||||
- flag: "--key-file"
|
||||
env: "ETCD_KEY_FILE"
|
||||
remediation: |
|
||||
Follow the etcd service documentation and configure TLS encryption.
|
||||
Then, edit the etcd pod specification file /etc/kubernetes/manifests/etcd.yaml
|
||||
on the master node and set the below parameters.
|
||||
--cert-file=</path/to/ca-file>
|
||||
--key-file=</path/to/key-file>
|
||||
scored: true
|
||||
|
||||
- id: 2.2
|
||||
text: "Ensure that the --client-cert-auth argument is set to true (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--client-cert-auth"
|
||||
env: "ETCD_CLIENT_CERT_AUTH"
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and set the below parameter.
|
||||
--client-cert-auth="true"
|
||||
scored: true
|
||||
|
||||
- id: 2.3
|
||||
text: "Ensure that the --auto-tls argument is not set to true (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--auto-tls"
|
||||
env: "ETCD_AUTO_TLS"
|
||||
set: false
|
||||
- flag: "--auto-tls"
|
||||
env: "ETCD_AUTO_TLS"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and either remove the --auto-tls parameter or set it to false.
|
||||
--auto-tls=false
|
||||
scored: true
|
||||
|
||||
- id: 2.4
|
||||
text: "Ensure that the --peer-cert-file and --peer-key-file arguments are
|
||||
set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "--peer-cert-file"
|
||||
env: "ETCD_PEER_CERT_FILE"
|
||||
- flag: "--peer-key-file"
|
||||
env: "ETCD_PEER_KEY_FILE"
|
||||
remediation: |
|
||||
Follow the etcd service documentation and configure peer TLS encryption as appropriate
|
||||
for your etcd cluster.
|
||||
Then, edit the etcd pod specification file $etcdconf on the
|
||||
master node and set the below parameters.
|
||||
--peer-client-file=</path/to/peer-cert-file>
|
||||
--peer-key-file=</path/to/peer-key-file>
|
||||
scored: true
|
||||
|
||||
- id: 2.5
|
||||
text: "Ensure that the --peer-client-cert-auth argument is set to true (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--peer-client-cert-auth"
|
||||
env: "ETCD_PEER_CLIENT_CERT_AUTH"
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and set the below parameter.
|
||||
--peer-client-cert-auth=true
|
||||
scored: true
|
||||
|
||||
- id: 2.6
|
||||
text: "Ensure that the --peer-auto-tls argument is not set to true (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--peer-auto-tls"
|
||||
env: "ETCD_PEER_AUTO_TLS"
|
||||
set: false
|
||||
- flag: "--peer-auto-tls"
|
||||
env: "ETCD_PEER_AUTO_TLS"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and either remove the --peer-auto-tls parameter or set it to false.
|
||||
--peer-auto-tls=false
|
||||
scored: true
|
||||
|
||||
- id: 2.7
|
||||
text: "Ensure that a unique Certificate Authority is used for etcd (Manual)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--trusted-ca-file"
|
||||
env: "ETCD_TRUSTED_CA_FILE"
|
||||
remediation: |
|
||||
[Manual test]
|
||||
Follow the etcd documentation and create a dedicated certificate authority setup for the
|
||||
etcd service.
|
||||
Then, edit the etcd pod specification file $etcdconf on the
|
||||
master node and set the below parameter.
|
||||
--trusted-ca-file=</path/to/ca-file>
|
||||
scored: false
|
||||
929
cfg/cis-1.8/master.yaml
Normal file
929
cfg/cis-1.8/master.yaml
Normal file
@@ -0,0 +1,929 @@
|
||||
---
|
||||
controls:
|
||||
version: "cis-1.8"
|
||||
id: 1
|
||||
text: "Control Plane Security Configuration"
|
||||
type: "master"
|
||||
groups:
|
||||
- id: 1.1
|
||||
text: "Control Plane Node Configuration Files"
|
||||
checks:
|
||||
- id: 1.1.1
|
||||
text: "Ensure that the API server pod specification file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $apiserverconf; then stat -c permissions=%a $apiserverconf; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the
|
||||
control plane node.
|
||||
For example, chmod 600 $apiserverconf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.2
|
||||
text: "Ensure that the API server pod specification file ownership is set to root:root (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $apiserverconf; then stat -c %U:%G $apiserverconf; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chown root:root $apiserverconf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.3
|
||||
text: "Ensure that the controller manager pod specification file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $controllermanagerconf; then stat -c permissions=%a $controllermanagerconf; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chmod 600 $controllermanagerconf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.4
|
||||
text: "Ensure that the controller manager pod specification file ownership is set to root:root (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $controllermanagerconf; then stat -c %U:%G $controllermanagerconf; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chown root:root $controllermanagerconf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.5
|
||||
text: "Ensure that the scheduler pod specification file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $schedulerconf; then stat -c permissions=%a $schedulerconf; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chmod 600 $schedulerconf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.6
|
||||
text: "Ensure that the scheduler pod specification file ownership is set to root:root (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $schedulerconf; then stat -c %U:%G $schedulerconf; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chown root:root $schedulerconf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.7
|
||||
text: "Ensure that the etcd pod specification file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $etcdconf; then find $etcdconf -name '*etcd*' | xargs stat -c permissions=%a; fi'"
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chmod 600 $etcdconf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.8
|
||||
text: "Ensure that the etcd pod specification file ownership is set to root:root (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $etcdconf; then find $etcdconf -name '*etcd*' | xargs stat -c %U:%G; fi'"
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chown root:root $etcdconf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.9
|
||||
text: "Ensure that the Container Network Interface file permissions are set to 600 or more restrictive (Manual)"
|
||||
audit: |
|
||||
ps -ef | grep $kubeletbin | grep -- --cni-conf-dir | sed 's%.*cni-conf-dir[= ]\([^ ]*\).*%\1%' | xargs -I{} find {} -mindepth 1 | xargs --no-run-if-empty stat -c permissions=%a
|
||||
find /var/lib/cni/networks -type f 2> /dev/null | xargs --no-run-if-empty stat -c permissions=%a
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chmod 600 <path/to/cni/files>
|
||||
scored: false
|
||||
|
||||
- id: 1.1.10
|
||||
text: "Ensure that the Container Network Interface file ownership is set to root:root (Manual)"
|
||||
audit: |
|
||||
ps -ef | grep $kubeletbin | grep -- --cni-conf-dir | sed 's%.*cni-conf-dir[= ]\([^ ]*\).*%\1%' | xargs -I{} find {} -mindepth 1 | xargs --no-run-if-empty stat -c %U:%G
|
||||
find /var/lib/cni/networks -type f 2> /dev/null | xargs --no-run-if-empty stat -c %U:%G
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chown root:root <path/to/cni/files>
|
||||
scored: false
|
||||
|
||||
- id: 1.1.11
|
||||
text: "Ensure that the etcd data directory permissions are set to 700 or more restrictive (Automated)"
|
||||
audit: |
|
||||
DATA_DIR=''
|
||||
for d in $(ps -ef | grep $etcdbin | grep -- --data-dir | sed 's%.*data-dir[= ]\([^ ]*\).*%\1%'); do
|
||||
if test -d "$d"; then DATA_DIR="$d"; fi
|
||||
done
|
||||
if ! test -d "$DATA_DIR"; then DATA_DIR=$etcddatadir; fi
|
||||
stat -c permissions=%a "$DATA_DIR"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "700"
|
||||
remediation: |
|
||||
On the etcd server node, get the etcd data directory, passed as an argument --data-dir,
|
||||
from the command 'ps -ef | grep etcd'.
|
||||
Run the below command (based on the etcd data directory found above). For example,
|
||||
chmod 700 /var/lib/etcd
|
||||
scored: true
|
||||
|
||||
- id: 1.1.12
|
||||
text: "Ensure that the etcd data directory ownership is set to etcd:etcd (Automated)"
|
||||
audit: |
|
||||
DATA_DIR=''
|
||||
for d in $(ps -ef | grep $etcdbin | grep -- --data-dir | sed 's%.*data-dir[= ]\([^ ]*\).*%\1%'); do
|
||||
if test -d "$d"; then DATA_DIR="$d"; fi
|
||||
done
|
||||
if ! test -d "$DATA_DIR"; then DATA_DIR=$etcddatadir; fi
|
||||
stat -c %U:%G "$DATA_DIR"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "etcd:etcd"
|
||||
remediation: |
|
||||
On the etcd server node, get the etcd data directory, passed as an argument --data-dir,
|
||||
from the command 'ps -ef | grep etcd'.
|
||||
Run the below command (based on the etcd data directory found above).
|
||||
For example, chown etcd:etcd /var/lib/etcd
|
||||
scored: true
|
||||
|
||||
- id: 1.1.13
|
||||
text: "Ensure that the admin.conf file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e /etc/kubernetes/admin.conf; then stat -c permissions=%a /etc/kubernetes/admin.conf; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chmod 600 /etc/kubernetes/admin.conf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.14
|
||||
text: "Ensure that the admin.conf file ownership is set to root:root (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e /etc/kubernetes/admin.conf; then stat -c %U:%G /etc/kubernetes/admin.conf; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chown root:root /etc/kubernetes/admin.conf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.15
|
||||
text: "Ensure that the scheduler.conf file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $schedulerkubeconfig; then stat -c permissions=%a $schedulerkubeconfig; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chmod 600 $schedulerkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 1.1.16
|
||||
text: "Ensure that the scheduler.conf file ownership is set to root:root (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $schedulerkubeconfig; then stat -c %U:%G $schedulerkubeconfig; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chown root:root $schedulerkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 1.1.17
|
||||
text: "Ensure that the controller-manager.conf file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $controllermanagerkubeconfig; then stat -c permissions=%a $controllermanagerkubeconfig; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chmod 600 $controllermanagerkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 1.1.18
|
||||
text: "Ensure that the controller-manager.conf file ownership is set to root:root (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $controllermanagerkubeconfig; then stat -c %U:%G $controllermanagerkubeconfig; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chown root:root $controllermanagerkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 1.1.19
|
||||
text: "Ensure that the Kubernetes PKI directory and file ownership is set to root:root (Automated)"
|
||||
audit: "find /etc/kubernetes/pki/ | xargs stat -c %U:%G"
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chown -R root:root /etc/kubernetes/pki/
|
||||
scored: true
|
||||
|
||||
- id: 1.1.20
|
||||
text: "Ensure that the Kubernetes PKI certificate file permissions are set to 600 or more restrictive (Manual)"
|
||||
audit: "find /etc/kubernetes/pki/ -name '*.crt' | xargs stat -c permissions=%a"
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chmod -R 600 /etc/kubernetes/pki/*.crt
|
||||
scored: false
|
||||
|
||||
- id: 1.1.21
|
||||
text: "Ensure that the Kubernetes PKI key file permissions are set to 600 (Manual)"
|
||||
audit: "find /etc/kubernetes/pki/ -name '*.key' | xargs stat -c permissions=%a"
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chmod -R 600 /etc/kubernetes/pki/*.key
|
||||
scored: false
|
||||
|
||||
- id: 1.2
|
||||
text: "API Server"
|
||||
checks:
|
||||
- id: 1.2.1
|
||||
text: "Ensure that the --anonymous-auth argument is set to false (Manual)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--anonymous-auth"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the below parameter.
|
||||
--anonymous-auth=false
|
||||
scored: false
|
||||
|
||||
- id: 1.2.2
|
||||
text: "Ensure that the --token-auth-file parameter is not set (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--token-auth-file"
|
||||
set: false
|
||||
remediation: |
|
||||
Follow the documentation and configure alternate mechanisms for authentication. Then,
|
||||
edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and remove the --token-auth-file=<filename> parameter.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.3
|
||||
text: "Ensure that the --DenyServiceExternalIPs is set (Manual)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--enable-admission-plugins"
|
||||
compare:
|
||||
op: have
|
||||
value: "DenyServiceExternalIPs"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and remove the `DenyServiceExternalIPs`
|
||||
from enabled admission plugins.
|
||||
scored: false
|
||||
|
||||
- id: 1.2.4
|
||||
text: "Ensure that the --kubelet-client-certificate and --kubelet-client-key arguments are set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "--kubelet-client-certificate"
|
||||
- flag: "--kubelet-client-key"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and set up the TLS connection between the
|
||||
apiserver and kubelets. Then, edit API server pod specification file
|
||||
$apiserverconf on the control plane node and set the
|
||||
kubelet client certificate and key parameters as below.
|
||||
--kubelet-client-certificate=<path/to/client-certificate-file>
|
||||
--kubelet-client-key=<path/to/client-key-file>
|
||||
scored: true
|
||||
|
||||
- id: 1.2.5
|
||||
text: "Ensure that the --kubelet-certificate-authority argument is set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--kubelet-certificate-authority"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and setup the TLS connection between
|
||||
the apiserver and kubelets. Then, edit the API server pod specification file
|
||||
$apiserverconf on the control plane node and set the
|
||||
--kubelet-certificate-authority parameter to the path to the cert file for the certificate authority.
|
||||
--kubelet-certificate-authority=<ca-string>
|
||||
scored: true
|
||||
|
||||
- id: 1.2.6
|
||||
text: "Ensure that the --authorization-mode argument is not set to AlwaysAllow (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--authorization-mode"
|
||||
compare:
|
||||
op: nothave
|
||||
value: "AlwaysAllow"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --authorization-mode parameter to values other than AlwaysAllow.
|
||||
One such example could be as below.
|
||||
--authorization-mode=RBAC
|
||||
scored: true
|
||||
|
||||
- id: 1.2.7
|
||||
text: "Ensure that the --authorization-mode argument includes Node (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--authorization-mode"
|
||||
compare:
|
||||
op: has
|
||||
value: "Node"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --authorization-mode parameter to a value that includes Node.
|
||||
--authorization-mode=Node,RBAC
|
||||
scored: true
|
||||
|
||||
- id: 1.2.8
|
||||
text: "Ensure that the --authorization-mode argument includes RBAC (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--authorization-mode"
|
||||
compare:
|
||||
op: has
|
||||
value: "RBAC"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --authorization-mode parameter to a value that includes RBAC,
|
||||
for example `--authorization-mode=Node,RBAC`.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.9
|
||||
text: "Ensure that the admission control plugin EventRateLimit is set (Manual)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--enable-admission-plugins"
|
||||
compare:
|
||||
op: has
|
||||
value: "EventRateLimit"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and set the desired limits in a configuration file.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
and set the below parameters.
|
||||
--enable-admission-plugins=...,EventRateLimit,...
|
||||
--admission-control-config-file=<path/to/configuration/file>
|
||||
scored: false
|
||||
|
||||
- id: 1.2.10
|
||||
text: "Ensure that the admission control plugin AlwaysAdmit is not set (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--enable-admission-plugins"
|
||||
compare:
|
||||
op: nothave
|
||||
value: AlwaysAdmit
|
||||
- flag: "--enable-admission-plugins"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and either remove the --enable-admission-plugins parameter, or set it to a
|
||||
value that does not include AlwaysAdmit.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.11
|
||||
text: "Ensure that the admission control plugin AlwaysPullImages is set (Manual)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--enable-admission-plugins"
|
||||
compare:
|
||||
op: has
|
||||
value: "AlwaysPullImages"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --enable-admission-plugins parameter to include
|
||||
AlwaysPullImages.
|
||||
--enable-admission-plugins=...,AlwaysPullImages,...
|
||||
scored: false
|
||||
|
||||
- id: 1.2.12
|
||||
text: "Ensure that the admission control plugin SecurityContextDeny is set if PodSecurityPolicy is not used (Manual)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--enable-admission-plugins"
|
||||
compare:
|
||||
op: has
|
||||
value: "SecurityContextDeny"
|
||||
- flag: "--enable-admission-plugins"
|
||||
compare:
|
||||
op: has
|
||||
value: "PodSecurityPolicy"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --enable-admission-plugins parameter to include
|
||||
SecurityContextDeny, unless PodSecurityPolicy is already in place.
|
||||
--enable-admission-plugins=...,SecurityContextDeny,...
|
||||
scored: false
|
||||
|
||||
- id: 1.2.13
|
||||
text: "Ensure that the admission control plugin ServiceAccount is set (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--disable-admission-plugins"
|
||||
compare:
|
||||
op: nothave
|
||||
value: "ServiceAccount"
|
||||
- flag: "--disable-admission-plugins"
|
||||
set: false
|
||||
remediation: |
|
||||
Follow the documentation and create ServiceAccount objects as per your environment.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and ensure that the --disable-admission-plugins parameter is set to a
|
||||
value that does not include ServiceAccount.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.14
|
||||
text: "Ensure that the admission control plugin NamespaceLifecycle is set (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--disable-admission-plugins"
|
||||
compare:
|
||||
op: nothave
|
||||
value: "NamespaceLifecycle"
|
||||
- flag: "--disable-admission-plugins"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --disable-admission-plugins parameter to
|
||||
ensure it does not include NamespaceLifecycle.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.15
|
||||
text: "Ensure that the admission control plugin NodeRestriction is set (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--enable-admission-plugins"
|
||||
compare:
|
||||
op: has
|
||||
value: "NodeRestriction"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and configure NodeRestriction plug-in on kubelets.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --enable-admission-plugins parameter to a
|
||||
value that includes NodeRestriction.
|
||||
--enable-admission-plugins=...,NodeRestriction,...
|
||||
scored: true
|
||||
|
||||
- id: 1.2.16
|
||||
text: "Ensure that the --profiling argument is set to false (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--profiling"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the below parameter.
|
||||
--profiling=false
|
||||
scored: true
|
||||
|
||||
- id: 1.2.17
|
||||
text: "Ensure that the --audit-log-path argument is set (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--audit-log-path"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --audit-log-path parameter to a suitable path and
|
||||
file where you would like audit logs to be written, for example,
|
||||
--audit-log-path=/var/log/apiserver/audit.log
|
||||
scored: true
|
||||
|
||||
- id: 1.2.18
|
||||
text: "Ensure that the --audit-log-maxage argument is set to 30 or as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--audit-log-maxage"
|
||||
compare:
|
||||
op: gte
|
||||
value: 30
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --audit-log-maxage parameter to 30
|
||||
or as an appropriate number of days, for example,
|
||||
--audit-log-maxage=30
|
||||
scored: true
|
||||
|
||||
- id: 1.2.19
|
||||
text: "Ensure that the --audit-log-maxbackup argument is set to 10 or as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--audit-log-maxbackup"
|
||||
compare:
|
||||
op: gte
|
||||
value: 10
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --audit-log-maxbackup parameter to 10 or to an appropriate
|
||||
value. For example,
|
||||
--audit-log-maxbackup=10
|
||||
scored: true
|
||||
|
||||
- id: 1.2.20
|
||||
text: "Ensure that the --audit-log-maxsize argument is set to 100 or as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--audit-log-maxsize"
|
||||
compare:
|
||||
op: gte
|
||||
value: 100
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --audit-log-maxsize parameter to an appropriate size in MB.
|
||||
For example, to set it as 100 MB, --audit-log-maxsize=100
|
||||
scored: true
|
||||
|
||||
- id: 1.2.21
|
||||
text: "Ensure that the --request-timeout argument is set as appropriate (Manual)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
type: manual
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
and set the below parameter as appropriate and if needed.
|
||||
For example, --request-timeout=300s
|
||||
scored: false
|
||||
|
||||
- id: 1.2.22
|
||||
text: "Ensure that the --service-account-lookup argument is set to true (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--service-account-lookup"
|
||||
set: false
|
||||
- flag: "--service-account-lookup"
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the below parameter.
|
||||
--service-account-lookup=true
|
||||
Alternatively, you can delete the --service-account-lookup parameter from this file so
|
||||
that the default takes effect.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.23
|
||||
text: "Ensure that the --service-account-key-file argument is set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--service-account-key-file"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --service-account-key-file parameter
|
||||
to the public key file for service accounts. For example,
|
||||
--service-account-key-file=<filename>
|
||||
scored: true
|
||||
|
||||
- id: 1.2.24
|
||||
text: "Ensure that the --etcd-certfile and --etcd-keyfile arguments are set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "--etcd-certfile"
|
||||
- flag: "--etcd-keyfile"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and set up the TLS connection between the apiserver and etcd.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the etcd certificate and key file parameters.
|
||||
--etcd-certfile=<path/to/client-certificate-file>
|
||||
--etcd-keyfile=<path/to/client-key-file>
|
||||
scored: true
|
||||
|
||||
- id: 1.2.25
|
||||
text: "Ensure that the --tls-cert-file and --tls-private-key-file arguments are set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "--tls-cert-file"
|
||||
- flag: "--tls-private-key-file"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and set up the TLS connection on the apiserver.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the TLS certificate and private key file parameters.
|
||||
--tls-cert-file=<path/to/tls-certificate-file>
|
||||
--tls-private-key-file=<path/to/tls-key-file>
|
||||
scored: true
|
||||
|
||||
- id: 1.2.26
|
||||
text: "Ensure that the --client-ca-file argument is set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--client-ca-file"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and set up the TLS connection on the apiserver.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the client certificate authority file.
|
||||
--client-ca-file=<path/to/client-ca-file>
|
||||
scored: true
|
||||
|
||||
- id: 1.2.27
|
||||
text: "Ensure that the --etcd-cafile argument is set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--etcd-cafile"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and set up the TLS connection between the apiserver and etcd.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the etcd certificate authority file parameter.
|
||||
--etcd-cafile=<path/to/ca-file>
|
||||
scored: true
|
||||
|
||||
- id: 1.2.28
|
||||
text: "Ensure that the --encryption-provider-config argument is set as appropriate (Manual)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--encryption-provider-config"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and configure a EncryptionConfig file.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --encryption-provider-config parameter to the path of that file.
|
||||
For example, --encryption-provider-config=</path/to/EncryptionConfig/File>
|
||||
scored: false
|
||||
|
||||
- id: 1.2.29
|
||||
text: "Ensure that encryption providers are appropriately configured (Manual)"
|
||||
audit: |
|
||||
ENCRYPTION_PROVIDER_CONFIG=$(ps -ef | grep $apiserverbin | grep -- --encryption-provider-config | sed 's%.*encryption-provider-config[= ]\([^ ]*\).*%\1%')
|
||||
if test -e $ENCRYPTION_PROVIDER_CONFIG; then grep -A1 'providers:' $ENCRYPTION_PROVIDER_CONFIG | tail -n1 | grep -o "[A-Za-z]*" | sed 's/^/provider=/'; fi
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "provider"
|
||||
compare:
|
||||
op: valid_elements
|
||||
value: "aescbc,kms,secretbox"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and configure a EncryptionConfig file.
|
||||
In this file, choose aescbc, kms or secretbox as the encryption provider.
|
||||
scored: false
|
||||
|
||||
- id: 1.2.30
|
||||
text: "Ensure that the API Server only makes use of Strong Cryptographic Ciphers (Manual)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--tls-cipher-suites"
|
||||
compare:
|
||||
op: valid_elements
|
||||
value: "TLS_AES_128_GCM_SHA256,TLS_AES_256_GCM_SHA384,TLS_CHACHA20_POLY1305_SHA256,TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256,TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256,TLS_RSA_WITH_3DES_EDE_CBC_SHA,TLS_RSA_WITH_AES_128_CBC_SHA,TLS_RSA_WITH_AES_128_GCM_SHA256,TLS_RSA_WITH_AES_256_CBC_SHA,TLS_RSA_WITH_AES_256_GCM_SHA384"
|
||||
remediation: |
|
||||
Edit the API server pod specification file /etc/kubernetes/manifests/kube-apiserver.yaml
|
||||
on the control plane node and set the below parameter.
|
||||
--tls-cipher-suites=TLS_AES_128_GCM_SHA256,TLS_AES_256_GCM_SHA384,TLS_CHACHA20_POLY1305_SHA256,
|
||||
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
|
||||
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
|
||||
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256,
|
||||
TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
|
||||
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,
|
||||
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256,TLS_RSA_WITH_3DES_EDE_CBC_SHA,TLS_RSA_WITH_AES_128_CBC_SHA,
|
||||
TLS_RSA_WITH_AES_128_GCM_SHA256,TLS_RSA_WITH_AES_256_CBC_SHA,TLS_RSA_WITH_AES_256_GCM_SHA384
|
||||
scored: false
|
||||
|
||||
- id: 1.3
|
||||
text: "Controller Manager"
|
||||
checks:
|
||||
- id: 1.3.1
|
||||
text: "Ensure that the --terminated-pod-gc-threshold argument is set as appropriate (Manual)"
|
||||
audit: "/bin/ps -ef | grep $controllermanagerbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--terminated-pod-gc-threshold"
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node and set the --terminated-pod-gc-threshold to an appropriate threshold,
|
||||
for example, --terminated-pod-gc-threshold=10
|
||||
scored: false
|
||||
|
||||
- id: 1.3.2
|
||||
text: "Ensure that the --profiling argument is set to false (Automated)"
|
||||
audit: "/bin/ps -ef | grep $controllermanagerbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--profiling"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node and set the below parameter.
|
||||
--profiling=false
|
||||
scored: true
|
||||
|
||||
- id: 1.3.3
|
||||
text: "Ensure that the --use-service-account-credentials argument is set to true (Automated)"
|
||||
audit: "/bin/ps -ef | grep $controllermanagerbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--use-service-account-credentials"
|
||||
compare:
|
||||
op: noteq
|
||||
value: false
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node to set the below parameter.
|
||||
--use-service-account-credentials=true
|
||||
scored: true
|
||||
|
||||
- id: 1.3.4
|
||||
text: "Ensure that the --service-account-private-key-file argument is set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | grep $controllermanagerbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--service-account-private-key-file"
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node and set the --service-account-private-key-file parameter
|
||||
to the private key file for service accounts.
|
||||
--service-account-private-key-file=<filename>
|
||||
scored: true
|
||||
|
||||
- id: 1.3.5
|
||||
text: "Ensure that the --root-ca-file argument is set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | grep $controllermanagerbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--root-ca-file"
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node and set the --root-ca-file parameter to the certificate bundle file`.
|
||||
--root-ca-file=<path/to/file>
|
||||
scored: true
|
||||
|
||||
- id: 1.3.6
|
||||
text: "Ensure that the RotateKubeletServerCertificate argument is set to true (Automated)"
|
||||
audit: "/bin/ps -ef | grep $controllermanagerbin | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--feature-gates"
|
||||
compare:
|
||||
op: nothave
|
||||
value: "RotateKubeletServerCertificate=false"
|
||||
set: true
|
||||
- flag: "--feature-gates"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node and set the --feature-gates parameter to include RotateKubeletServerCertificate=true.
|
||||
--feature-gates=RotateKubeletServerCertificate=true
|
||||
scored: true
|
||||
|
||||
- id: 1.3.7
|
||||
text: "Ensure that the --bind-address argument is set to 127.0.0.1 (Automated)"
|
||||
audit: "/bin/ps -ef | grep $controllermanagerbin | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--bind-address"
|
||||
compare:
|
||||
op: eq
|
||||
value: "127.0.0.1"
|
||||
- flag: "--bind-address"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node and ensure the correct value for the --bind-address parameter
|
||||
scored: true
|
||||
|
||||
- id: 1.4
|
||||
text: "Scheduler"
|
||||
checks:
|
||||
- id: 1.4.1
|
||||
text: "Ensure that the --profiling argument is set to false (Automated)"
|
||||
audit: "/bin/ps -ef | grep $schedulerbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--profiling"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
Edit the Scheduler pod specification file $schedulerconf file
|
||||
on the control plane node and set the below parameter.
|
||||
--profiling=false
|
||||
scored: true
|
||||
|
||||
- id: 1.4.2
|
||||
text: "Ensure that the --bind-address argument is set to 127.0.0.1 (Automated)"
|
||||
audit: "/bin/ps -ef | grep $schedulerbin | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--bind-address"
|
||||
compare:
|
||||
op: eq
|
||||
value: "127.0.0.1"
|
||||
- flag: "--bind-address"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the Scheduler pod specification file $schedulerconf
|
||||
on the control plane node and ensure the correct value for the --bind-address parameter
|
||||
scored: true
|
||||
455
cfg/cis-1.8/node.yaml
Normal file
455
cfg/cis-1.8/node.yaml
Normal file
@@ -0,0 +1,455 @@
|
||||
---
|
||||
controls:
|
||||
version: "cis-1.8"
|
||||
id: 4
|
||||
text: "Worker Node Security Configuration"
|
||||
type: "node"
|
||||
groups:
|
||||
- id: 4.1
|
||||
text: "Worker Node Configuration Files"
|
||||
checks:
|
||||
- id: 4.1.1
|
||||
text: "Ensure that the kubelet service file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletsvc; then stat -c permissions=%a $kubeletsvc; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example, chmod 600 $kubeletsvc
|
||||
scored: true
|
||||
|
||||
- id: 4.1.2
|
||||
text: "Ensure that the kubelet service file ownership is set to root:root (Automated)"
|
||||
audit: '/bin/sh -c "if test -e $kubeletsvc; then stat -c %U:%G $kubeletsvc; else echo \"File not found\"; fi"'
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: root:root
|
||||
- flag: "File not found"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chown root:root $kubeletsvc
|
||||
scored: true
|
||||
|
||||
- id: 4.1.3
|
||||
text: "If proxy kubeconfig file exists ensure permissions are set to 600 or more restrictive (Manual)"
|
||||
audit: '/bin/sh -c ''if test -e $proxykubeconfig; then stat -c permissions=%a $proxykubeconfig; fi'' '
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
set: true
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chmod 600 $proxykubeconfig
|
||||
scored: false
|
||||
|
||||
- id: 4.1.4
|
||||
text: "If proxy kubeconfig file exists ensure ownership is set to root:root (Manual)"
|
||||
audit: '/bin/sh -c ''if test -e $proxykubeconfig; then stat -c %U:%G $proxykubeconfig; fi'' '
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example, chown root:root $proxykubeconfig
|
||||
scored: false
|
||||
|
||||
- id: 4.1.5
|
||||
text: "Ensure that the --kubeconfig kubelet.conf file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletkubeconfig; then stat -c permissions=%a $kubeletkubeconfig; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chmod 600 $kubeletkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 4.1.6
|
||||
text: "Ensure that the --kubeconfig kubelet.conf file ownership is set to root:root (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletkubeconfig; then stat -c %U:%G $kubeletkubeconfig; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chown root:root $kubeletkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 4.1.7
|
||||
text: "Ensure that the certificate authorities file permissions are set to 600 or more restrictive (Manual)"
|
||||
audit: |
|
||||
CAFILE=$(ps -ef | grep kubelet | grep -v apiserver | grep -- --client-ca-file= | awk -F '--client-ca-file=' '{print $2}' | awk '{print $1}' | uniq)
|
||||
if test -z $CAFILE; then CAFILE=$kubeletcafile; fi
|
||||
if test -e $CAFILE; then stat -c permissions=%a $CAFILE; fi
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the following command to modify the file permissions of the
|
||||
--client-ca-file chmod 600 <filename>
|
||||
scored: false
|
||||
|
||||
- id: 4.1.8
|
||||
text: "Ensure that the client certificate authorities file ownership is set to root:root (Manual)"
|
||||
audit: |
|
||||
CAFILE=$(ps -ef | grep kubelet | grep -v apiserver | grep -- --client-ca-file= | awk -F '--client-ca-file=' '{print $2}' | awk '{print $1}' | uniq)
|
||||
if test -z $CAFILE; then CAFILE=$kubeletcafile; fi
|
||||
if test -e $CAFILE; then stat -c %U:%G $CAFILE; fi
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
compare:
|
||||
op: eq
|
||||
value: root:root
|
||||
remediation: |
|
||||
Run the following command to modify the ownership of the --client-ca-file.
|
||||
chown root:root <filename>
|
||||
scored: false
|
||||
|
||||
- id: 4.1.9
|
||||
text: "If the kubelet config.yaml configuration file is being used validate permissions set to 600 or more restrictive (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletconf; then stat -c permissions=%a $kubeletconf; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the following command (using the config file location identified in the Audit step)
|
||||
chmod 600 $kubeletconf
|
||||
scored: true
|
||||
|
||||
- id: 4.1.10
|
||||
text: "If the kubelet config.yaml configuration file is being used validate file ownership is set to root:root (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletconf; then stat -c %U:%G $kubeletconf; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Run the following command (using the config file location identified in the Audit step)
|
||||
chown root:root $kubeletconf
|
||||
scored: true
|
||||
|
||||
- id: 4.2
|
||||
text: "Kubelet"
|
||||
checks:
|
||||
- id: 4.2.1
|
||||
text: "Ensure that the --anonymous-auth argument is set to false (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--anonymous-auth"
|
||||
path: '{.authentication.anonymous.enabled}'
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `authentication: anonymous: enabled` to
|
||||
`false`.
|
||||
If using executable arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
`--anonymous-auth=false`
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.2
|
||||
text: "Ensure that the --authorization-mode argument is not set to AlwaysAllow (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --authorization-mode
|
||||
path: '{.authorization.mode}'
|
||||
compare:
|
||||
op: nothave
|
||||
value: AlwaysAllow
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `authorization.mode` to Webhook. If
|
||||
using executable arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_AUTHZ_ARGS variable.
|
||||
--authorization-mode=Webhook
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.3
|
||||
text: "Ensure that the --client-ca-file argument is set as appropriate (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --client-ca-file
|
||||
path: '{.authentication.x509.clientCAFile}'
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `authentication.x509.clientCAFile` to
|
||||
the location of the client CA file.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_AUTHZ_ARGS variable.
|
||||
--client-ca-file=<path/to/client-ca-file>
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.4
|
||||
text: "Verify that the --read-only-port argument is set to 0 (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--read-only-port"
|
||||
path: '{.readOnlyPort}'
|
||||
compare:
|
||||
op: eq
|
||||
value: 0
|
||||
- flag: "--read-only-port"
|
||||
path: '{.readOnlyPort}'
|
||||
set: false
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `readOnlyPort` to 0.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
--read-only-port=0
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.5
|
||||
text: "Ensure that the --streaming-connection-idle-timeout argument is not set to 0 (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --streaming-connection-idle-timeout
|
||||
path: '{.streamingConnectionIdleTimeout}'
|
||||
compare:
|
||||
op: noteq
|
||||
value: 0
|
||||
- flag: --streaming-connection-idle-timeout
|
||||
path: '{.streamingConnectionIdleTimeout}'
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `streamingConnectionIdleTimeout` to a
|
||||
value other than 0.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
--streaming-connection-idle-timeout=5m
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.6
|
||||
text: "Ensure that the --make-iptables-util-chains argument is set to true (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --make-iptables-util-chains
|
||||
path: '{.makeIPTablesUtilChains}'
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
- flag: --make-iptables-util-chains
|
||||
path: '{.makeIPTablesUtilChains}'
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `makeIPTablesUtilChains` to `true`.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
remove the --make-iptables-util-chains argument from the
|
||||
KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.7
|
||||
text: "Ensure that the --hostname-override argument is not set (Manual)"
|
||||
# This is one of those properties that can only be set as a command line argument.
|
||||
# To check if the property is set as expected, we need to parse the kubelet command
|
||||
# instead reading the Kubelet Configuration file.
|
||||
audit: "/bin/ps -fC $kubeletbin "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --hostname-override
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the kubelet service file $kubeletsvc
|
||||
on each worker node and remove the --hostname-override argument from the
|
||||
KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.8
|
||||
text: "Ensure that the eventRecordQPS argument is set to a level which ensures appropriate event capture (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --event-qps
|
||||
path: '{.eventRecordQPS}'
|
||||
compare:
|
||||
op: gte
|
||||
value: 0
|
||||
- flag: --event-qps
|
||||
path: '{.eventRecordQPS}'
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `eventRecordQPS` to an appropriate level.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.9
|
||||
text: "Ensure that the --tls-cert-file and --tls-private-key-file arguments are set as appropriate (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --tls-cert-file
|
||||
path: '{.tlsCertFile}'
|
||||
- flag: --tls-private-key-file
|
||||
path: '{.tlsPrivateKeyFile}'
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `tlsCertFile` to the location
|
||||
of the certificate file to use to identify this Kubelet, and `tlsPrivateKeyFile`
|
||||
to the location of the corresponding private key file.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameters in KUBELET_CERTIFICATE_ARGS variable.
|
||||
--tls-cert-file=<path/to/tls-certificate-file>
|
||||
--tls-private-key-file=<path/to/tls-key-file>
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.10
|
||||
text: "Ensure that the --rotate-certificates argument is not set to false (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --rotate-certificates
|
||||
path: '{.rotateCertificates}'
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
- flag: --rotate-certificates
|
||||
path: '{.rotateCertificates}'
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to add the line `rotateCertificates` to `true` or
|
||||
remove it altogether to use the default value.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
remove --rotate-certificates=false argument from the KUBELET_CERTIFICATE_ARGS
|
||||
variable.
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.11
|
||||
text: "Verify that the RotateKubeletServerCertificate argument is set to true (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: RotateKubeletServerCertificate
|
||||
path: '{.featureGates.RotateKubeletServerCertificate}'
|
||||
compare:
|
||||
op: nothave
|
||||
value: false
|
||||
- flag: RotateKubeletServerCertificate
|
||||
path: '{.featureGates.RotateKubeletServerCertificate}'
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the kubelet service file $kubeletsvc
|
||||
on each worker node and set the below parameter in KUBELET_CERTIFICATE_ARGS variable.
|
||||
--feature-gates=RotateKubeletServerCertificate=true
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.12
|
||||
text: "Ensure that the Kubelet only makes use of Strong Cryptographic Ciphers (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --tls-cipher-suites
|
||||
path: '{range .tlsCipherSuites[:]}{}{'',''}{end}'
|
||||
compare:
|
||||
op: valid_elements
|
||||
value: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `TLSCipherSuites` to
|
||||
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
|
||||
or to a subset of these values.
|
||||
If using executable arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the --tls-cipher-suites parameter as follows, or to a subset of these values.
|
||||
--tls-cipher-suites=TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.13
|
||||
text: "Ensure that a limit is set on pod PIDs (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --pod-max-pids
|
||||
path: '{.podPidsLimit}'
|
||||
remediation: |
|
||||
Decide on an appropriate level for this parameter and set it,
|
||||
either via the --pod-max-pids command line parameter or the PodPidsLimit configuration file setting.
|
||||
scored: false
|
||||
304
cfg/cis-1.8/policies.yaml
Normal file
304
cfg/cis-1.8/policies.yaml
Normal file
@@ -0,0 +1,304 @@
|
||||
---
|
||||
controls:
|
||||
version: "cis-1.8"
|
||||
id: 5
|
||||
text: "Kubernetes Policies"
|
||||
type: "policies"
|
||||
groups:
|
||||
- id: 5.1
|
||||
text: "RBAC and Service Accounts"
|
||||
checks:
|
||||
- id: 5.1.1
|
||||
text: "Ensure that the cluster-admin role is only used where required (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Identify all clusterrolebindings to the cluster-admin role. Check if they are used and
|
||||
if they need this role or if they could use a role with fewer privileges.
|
||||
Where possible, first bind users to a lower privileged role and then remove the
|
||||
clusterrolebinding to the cluster-admin role :
|
||||
kubectl delete clusterrolebinding [name]
|
||||
scored: false
|
||||
|
||||
- id: 5.1.2
|
||||
text: "Minimize access to secrets (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove get, list and watch access to Secret objects in the cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.3
|
||||
text: "Minimize wildcard use in Roles and ClusterRoles (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible replace any use of wildcards in clusterroles and roles with specific
|
||||
objects or actions.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.4
|
||||
text: "Minimize access to create pods (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove create access to pod objects in the cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.5
|
||||
text: "Ensure that default service accounts are not actively used. (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Create explicit service accounts wherever a Kubernetes workload requires specific access
|
||||
to the Kubernetes API server.
|
||||
Modify the configuration of each default service account to include this value
|
||||
automountServiceAccountToken: false
|
||||
scored: false
|
||||
|
||||
- id: 5.1.6
|
||||
text: "Ensure that Service Account Tokens are only mounted where necessary (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Modify the definition of pods and service accounts which do not need to mount service
|
||||
account tokens to disable it.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.7
|
||||
text: "Avoid use of system:masters group (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Remove the system:masters group from all users in the cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.8
|
||||
text: "Limit use of the Bind, Impersonate and Escalate permissions in the Kubernetes cluster (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove the impersonate, bind and escalate rights from subjects.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.9
|
||||
text: "Minimize access to create persistent volumes (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove create access to PersistentVolume objects in the cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.10
|
||||
text: "Minimize access to the proxy sub-resource of nodes (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove access to the proxy sub-resource of node objects.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.11
|
||||
text: "Minimize access to the approval sub-resource of certificatesigningrequests objects (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove access to the approval sub-resource of certificatesigningrequest objects.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.12
|
||||
text: "Minimize access to webhook configuration objects (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove access to the validatingwebhookconfigurations or mutatingwebhookconfigurations objects
|
||||
scored: false
|
||||
|
||||
- id: 5.1.13
|
||||
text: "Minimize access to the service account token creation (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove access to the token sub-resource of serviceaccount objects.
|
||||
scored: false
|
||||
|
||||
- id: 5.2
|
||||
text: "Pod Security Standards"
|
||||
checks:
|
||||
- id: 5.2.1
|
||||
text: "Ensure that the cluster has at least one active policy control mechanism in place (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Ensure that either Pod Security Admission or an external policy control system is in place
|
||||
for every namespace which contains user workloads.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.2
|
||||
text: "Minimize the admission of privileged containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of privileged containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.3
|
||||
text: "Minimize the admission of containers wishing to share the host process ID namespace (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of `hostPID` containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.4
|
||||
text: "Minimize the admission of containers wishing to share the host IPC namespace (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of `hostIPC` containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.5
|
||||
text: "Minimize the admission of containers wishing to share the host network namespace (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of `hostNetwork` containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.6
|
||||
text: "Minimize the admission of containers with allowPrivilegeEscalation (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers with `.spec.allowPrivilegeEscalation` set to `true`.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.7
|
||||
text: "Minimize the admission of root containers (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Create a policy for each namespace in the cluster, ensuring that either `MustRunAsNonRoot`
|
||||
or `MustRunAs` with the range of UIDs not including 0, is set.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.8
|
||||
text: "Minimize the admission of containers with the NET_RAW capability (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers with the `NET_RAW` capability.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.9
|
||||
text: "Minimize the admission of containers with added capabilities (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Ensure that `allowedCapabilities` is not present in policies for the cluster unless
|
||||
it is set to an empty array.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.10
|
||||
text: "Minimize the admission of containers with capabilities assigned (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Review the use of capabilites in applications running on your cluster. Where a namespace
|
||||
contains applicaions which do not require any Linux capabities to operate consider adding
|
||||
a PSP which forbids the admission of containers which do not drop all capabilities.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.11
|
||||
text: "Minimize the admission of Windows HostProcess containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers that have `.securityContext.windowsOptions.hostProcess` set to `true`.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.12
|
||||
text: "Minimize the admission of HostPath volumes (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers with `hostPath` volumes.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.13
|
||||
text: "Minimize the admission of containers which use HostPorts (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers which use `hostPort` sections.
|
||||
scored: false
|
||||
|
||||
- id: 5.3
|
||||
text: "Network Policies and CNI"
|
||||
checks:
|
||||
- id: 5.3.1
|
||||
text: "Ensure that the CNI in use supports NetworkPolicies (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
If the CNI plugin in use does not support network policies, consideration should be given to
|
||||
making use of a different plugin, or finding an alternate mechanism for restricting traffic
|
||||
in the Kubernetes cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.3.2
|
||||
text: "Ensure that all Namespaces have NetworkPolicies defined (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the documentation and create NetworkPolicy objects as you need them.
|
||||
scored: false
|
||||
|
||||
- id: 5.4
|
||||
text: "Secrets Management"
|
||||
checks:
|
||||
- id: 5.4.1
|
||||
text: "Prefer using Secrets as files over Secrets as environment variables (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
If possible, rewrite application code to read Secrets from mounted secret files, rather than
|
||||
from environment variables.
|
||||
scored: false
|
||||
|
||||
- id: 5.4.2
|
||||
text: "Consider external secret storage (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Refer to the Secrets management options offered by your cloud provider or a third-party
|
||||
secrets management solution.
|
||||
scored: false
|
||||
|
||||
- id: 5.5
|
||||
text: "Extensible Admission Control"
|
||||
checks:
|
||||
- id: 5.5.1
|
||||
text: "Configure Image Provenance using ImagePolicyWebhook admission controller (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and setup image provenance.
|
||||
scored: false
|
||||
|
||||
- id: 5.7
|
||||
text: "General Policies"
|
||||
checks:
|
||||
- id: 5.7.1
|
||||
text: "Create administrative boundaries between resources using namespaces (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the documentation and create namespaces for objects in your deployment as you need
|
||||
them.
|
||||
scored: false
|
||||
|
||||
- id: 5.7.2
|
||||
text: "Ensure that the seccomp profile is set to docker/default in your Pod definitions (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Use `securityContext` to enable the docker/default seccomp profile in your pod definitions.
|
||||
An example is as below:
|
||||
securityContext:
|
||||
seccompProfile:
|
||||
type: RuntimeDefault
|
||||
scored: false
|
||||
|
||||
- id: 5.7.3
|
||||
text: "Apply SecurityContext to your Pods and Containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and apply SecurityContexts to your Pods. For a
|
||||
suggested list of SecurityContexts, you may refer to the CIS Security Benchmark for Docker
|
||||
Containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.7.4
|
||||
text: "The default namespace should not be used (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Ensure that namespaces are created to allow for appropriate segregation of Kubernetes
|
||||
resources and that all new resources are created in a specific namespace.
|
||||
scored: false
|
||||
2
cfg/cis-1.9/config.yaml
Normal file
2
cfg/cis-1.9/config.yaml
Normal file
@@ -0,0 +1,2 @@
|
||||
---
|
||||
## Version-specific settings that override the values in cfg/config.yaml
|
||||
60
cfg/cis-1.9/controlplane.yaml
Normal file
60
cfg/cis-1.9/controlplane.yaml
Normal file
@@ -0,0 +1,60 @@
|
||||
---
|
||||
controls:
|
||||
version: "cis-1.9"
|
||||
id: 3
|
||||
text: "Control Plane Configuration"
|
||||
type: "controlplane"
|
||||
groups:
|
||||
- id: 3.1
|
||||
text: "Authentication and Authorization"
|
||||
checks:
|
||||
- id: 3.1.1
|
||||
text: "Client certificate authentication should not be used for users (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Alternative mechanisms provided by Kubernetes such as the use of OIDC should be
|
||||
implemented in place of client certificates.
|
||||
scored: false
|
||||
- id: 3.1.2
|
||||
text: "Service account token authentication should not be used for users (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Alternative mechanisms provided by Kubernetes such as the use of OIDC should be implemented
|
||||
in place of service account tokens.
|
||||
scored: false
|
||||
- id: 3.1.3
|
||||
text: "Bootstrap token authentication should not be used for users (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Alternative mechanisms provided by Kubernetes such as the use of OIDC should be implemented
|
||||
in place of bootstrap tokens.
|
||||
scored: false
|
||||
|
||||
- id: 3.2
|
||||
text: "Logging"
|
||||
checks:
|
||||
- id: 3.2.1
|
||||
text: "Ensure that a minimal audit policy is created (Manual)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--audit-policy-file"
|
||||
set: true
|
||||
remediation: |
|
||||
Create an audit policy file for your cluster.
|
||||
scored: false
|
||||
|
||||
- id: 3.2.2
|
||||
text: "Ensure that the audit policy covers key security concerns (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Review the audit policy provided for the cluster and ensure that it covers
|
||||
at least the following areas,
|
||||
- Access to Secrets managed by the cluster. Care should be taken to only
|
||||
log Metadata for requests to Secrets, ConfigMaps, and TokenReviews, in
|
||||
order to avoid risk of logging sensitive data.
|
||||
- Modification of Pod and Deployment objects.
|
||||
- Use of `pods/exec`, `pods/portforward`, `pods/proxy` and `services/proxy`.
|
||||
For most requests, minimally logging at the Metadata level is recommended
|
||||
(the most basic level of logging).
|
||||
scored: false
|
||||
135
cfg/cis-1.9/etcd.yaml
Normal file
135
cfg/cis-1.9/etcd.yaml
Normal file
@@ -0,0 +1,135 @@
|
||||
---
|
||||
controls:
|
||||
version: "cis-1.9"
|
||||
id: 2
|
||||
text: "Etcd Node Configuration"
|
||||
type: "etcd"
|
||||
groups:
|
||||
- id: 2
|
||||
text: "Etcd Node Configuration"
|
||||
checks:
|
||||
- id: 2.1
|
||||
text: "Ensure that the --cert-file and --key-file arguments are set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "--cert-file"
|
||||
env: "ETCD_CERT_FILE"
|
||||
- flag: "--key-file"
|
||||
env: "ETCD_KEY_FILE"
|
||||
remediation: |
|
||||
Follow the etcd service documentation and configure TLS encryption.
|
||||
Then, edit the etcd pod specification file /etc/kubernetes/manifests/etcd.yaml
|
||||
on the master node and set the below parameters.
|
||||
--cert-file=</path/to/ca-file>
|
||||
--key-file=</path/to/key-file>
|
||||
scored: true
|
||||
|
||||
- id: 2.2
|
||||
text: "Ensure that the --client-cert-auth argument is set to true (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--client-cert-auth"
|
||||
env: "ETCD_CLIENT_CERT_AUTH"
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and set the below parameter.
|
||||
--client-cert-auth="true"
|
||||
scored: true
|
||||
|
||||
- id: 2.3
|
||||
text: "Ensure that the --auto-tls argument is not set to true (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--auto-tls"
|
||||
env: "ETCD_AUTO_TLS"
|
||||
set: false
|
||||
- flag: "--auto-tls"
|
||||
env: "ETCD_AUTO_TLS"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and either remove the --auto-tls parameter or set it to false.
|
||||
--auto-tls=false
|
||||
scored: true
|
||||
|
||||
- id: 2.4
|
||||
text: "Ensure that the --peer-cert-file and --peer-key-file arguments are
|
||||
set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "--peer-cert-file"
|
||||
env: "ETCD_PEER_CERT_FILE"
|
||||
- flag: "--peer-key-file"
|
||||
env: "ETCD_PEER_KEY_FILE"
|
||||
remediation: |
|
||||
Follow the etcd service documentation and configure peer TLS encryption as appropriate
|
||||
for your etcd cluster.
|
||||
Then, edit the etcd pod specification file $etcdconf on the
|
||||
master node and set the below parameters.
|
||||
--peer-client-file=</path/to/peer-cert-file>
|
||||
--peer-key-file=</path/to/peer-key-file>
|
||||
scored: true
|
||||
|
||||
- id: 2.5
|
||||
text: "Ensure that the --peer-client-cert-auth argument is set to true (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--peer-client-cert-auth"
|
||||
env: "ETCD_PEER_CLIENT_CERT_AUTH"
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and set the below parameter.
|
||||
--peer-client-cert-auth=true
|
||||
scored: true
|
||||
|
||||
- id: 2.6
|
||||
text: "Ensure that the --peer-auto-tls argument is not set to true (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--peer-auto-tls"
|
||||
env: "ETCD_PEER_AUTO_TLS"
|
||||
set: false
|
||||
- flag: "--peer-auto-tls"
|
||||
env: "ETCD_PEER_AUTO_TLS"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and either remove the --peer-auto-tls parameter or set it to false.
|
||||
--peer-auto-tls=false
|
||||
scored: true
|
||||
|
||||
- id: 2.7
|
||||
text: "Ensure that a unique Certificate Authority is used for etcd (Manual)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--trusted-ca-file"
|
||||
env: "ETCD_TRUSTED_CA_FILE"
|
||||
remediation: |
|
||||
[Manual test]
|
||||
Follow the etcd documentation and create a dedicated certificate authority setup for the
|
||||
etcd service.
|
||||
Then, edit the etcd pod specification file $etcdconf on the
|
||||
master node and set the below parameter.
|
||||
--trusted-ca-file=</path/to/ca-file>
|
||||
scored: false
|
||||
919
cfg/cis-1.9/master.yaml
Normal file
919
cfg/cis-1.9/master.yaml
Normal file
@@ -0,0 +1,919 @@
|
||||
---
|
||||
controls:
|
||||
version: "cis-1.9"
|
||||
id: 1
|
||||
text: "Control Plane Security Configuration"
|
||||
type: "master"
|
||||
groups:
|
||||
- id: 1.1
|
||||
text: "Control Plane Node Configuration Files"
|
||||
checks:
|
||||
- id: 1.1.1
|
||||
text: "Ensure that the API server pod specification file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $apiserverconf; then stat -c permissions=%a $apiserverconf; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the
|
||||
control plane node.
|
||||
For example, chmod 600 $apiserverconf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.2
|
||||
text: "Ensure that the API server pod specification file ownership is set to root:root (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $apiserverconf; then stat -c %U:%G $apiserverconf; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chown root:root $apiserverconf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.3
|
||||
text: "Ensure that the controller manager pod specification file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $controllermanagerconf; then stat -c permissions=%a $controllermanagerconf; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chmod 600 $controllermanagerconf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.4
|
||||
text: "Ensure that the controller manager pod specification file ownership is set to root:root (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $controllermanagerconf; then stat -c %U:%G $controllermanagerconf; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chown root:root $controllermanagerconf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.5
|
||||
text: "Ensure that the scheduler pod specification file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $schedulerconf; then stat -c permissions=%a $schedulerconf; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chmod 600 $schedulerconf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.6
|
||||
text: "Ensure that the scheduler pod specification file ownership is set to root:root (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $schedulerconf; then stat -c %U:%G $schedulerconf; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chown root:root $schedulerconf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.7
|
||||
text: "Ensure that the etcd pod specification file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $etcdconf; then find $etcdconf -name '*etcd*' | xargs stat -c permissions=%a; fi'"
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chmod 600 $etcdconf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.8
|
||||
text: "Ensure that the etcd pod specification file ownership is set to root:root (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $etcdconf; then find $etcdconf -name '*etcd*' | xargs stat -c %U:%G; fi'"
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chown root:root $etcdconf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.9
|
||||
text: "Ensure that the Container Network Interface file permissions are set to 600 or more restrictive (Manual)"
|
||||
audit: |
|
||||
ps -ef | grep $kubeletbin | grep -- --cni-conf-dir | sed 's%.*cni-conf-dir[= ]\([^ ]*\).*%\1%' | xargs -I{} find {} -mindepth 1 | xargs --no-run-if-empty stat -c permissions=%a
|
||||
find /var/lib/cni/networks -type f 2> /dev/null | xargs --no-run-if-empty stat -c permissions=%a
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chmod 600 <path/to/cni/files>
|
||||
scored: false
|
||||
|
||||
- id: 1.1.10
|
||||
text: "Ensure that the Container Network Interface file ownership is set to root:root (Manual)"
|
||||
audit: |
|
||||
ps -ef | grep $kubeletbin | grep -- --cni-conf-dir | sed 's%.*cni-conf-dir[= ]\([^ ]*\).*%\1%' | xargs -I{} find {} -mindepth 1 | xargs --no-run-if-empty stat -c %U:%G
|
||||
find /var/lib/cni/networks -type f 2> /dev/null | xargs --no-run-if-empty stat -c %U:%G
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chown root:root <path/to/cni/files>
|
||||
scored: false
|
||||
|
||||
- id: 1.1.11
|
||||
text: "Ensure that the etcd data directory permissions are set to 700 or more restrictive (Automated)"
|
||||
audit: |
|
||||
DATA_DIR=''
|
||||
for d in $(ps -ef | grep $etcdbin | grep -- --data-dir | sed 's%.*data-dir[= ]\([^ ]*\).*%\1%'); do
|
||||
if test -d "$d"; then DATA_DIR="$d"; fi
|
||||
done
|
||||
if ! test -d "$DATA_DIR"; then DATA_DIR=$etcddatadir; fi
|
||||
stat -c permissions=%a "$DATA_DIR"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "700"
|
||||
remediation: |
|
||||
On the etcd server node, get the etcd data directory, passed as an argument --data-dir,
|
||||
from the command 'ps -ef | grep etcd'.
|
||||
Run the below command (based on the etcd data directory found above). For example,
|
||||
chmod 700 /var/lib/etcd
|
||||
scored: true
|
||||
|
||||
- id: 1.1.12
|
||||
text: "Ensure that the etcd data directory ownership is set to etcd:etcd (Automated)"
|
||||
audit: |
|
||||
DATA_DIR=''
|
||||
for d in $(ps -ef | grep $etcdbin | grep -- --data-dir | sed 's%.*data-dir[= ]\([^ ]*\).*%\1%'); do
|
||||
if test -d "$d"; then DATA_DIR="$d"; fi
|
||||
done
|
||||
if ! test -d "$DATA_DIR"; then DATA_DIR=$etcddatadir; fi
|
||||
stat -c %U:%G "$DATA_DIR"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "etcd:etcd"
|
||||
remediation: |
|
||||
On the etcd server node, get the etcd data directory, passed as an argument --data-dir,
|
||||
from the command 'ps -ef | grep etcd'.
|
||||
Run the below command (based on the etcd data directory found above).
|
||||
For example, chown etcd:etcd /var/lib/etcd
|
||||
scored: true
|
||||
|
||||
- id: 1.1.13
|
||||
text: "Ensure that the default administrative credential file permissions are set to 600 (Automated)"
|
||||
audit: |
|
||||
for adminconf in /etc/kubernetes/{admin.conf,super-admin.conf}; do if test -e $adminconf; then stat -c \"permissions=%a %n\" $adminconf; fi; done
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chmod 600 /etc/kubernetes/admin.conf
|
||||
On Kubernetes 1.29+ the super-admin.conf file should also be modified, if present.
|
||||
For example, chmod 600 /etc/kubernetes/super-admin.conf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.14
|
||||
text: "Ensure that the default administrative credential file ownership is set to root:root (Automated)"
|
||||
audit: |
|
||||
for adminconf in /tmp/{admin.conf,super-admin.conf}; do if test -e $adminconf; then stat -c "ownership=%U:%G %n" $adminconf; fi; done
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "ownership"
|
||||
compare:
|
||||
op: eq
|
||||
value: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chown root:root /etc/kubernetes/admin.conf
|
||||
On Kubernetes 1.29+ the super-admin.conf file should also be modified, if present.
|
||||
For example, chmod 600 /etc/kubernetes/super-admin.conf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.15
|
||||
text: "Ensure that the scheduler.conf file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $schedulerkubeconfig; then stat -c permissions=%a $schedulerkubeconfig; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chmod 600 $schedulerkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 1.1.16
|
||||
text: "Ensure that the scheduler.conf file ownership is set to root:root (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $schedulerkubeconfig; then stat -c %U:%G $schedulerkubeconfig; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chown root:root $schedulerkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 1.1.17
|
||||
text: "Ensure that the controller-manager.conf file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $controllermanagerkubeconfig; then stat -c permissions=%a $controllermanagerkubeconfig; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chmod 600 $controllermanagerkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 1.1.18
|
||||
text: "Ensure that the controller-manager.conf file ownership is set to root:root (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $controllermanagerkubeconfig; then stat -c %U:%G $controllermanagerkubeconfig; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chown root:root $controllermanagerkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 1.1.19
|
||||
text: "Ensure that the Kubernetes PKI directory and file ownership is set to root:root (Automated)"
|
||||
audit: "find /etc/kubernetes/pki/ | xargs stat -c %U:%G"
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chown -R root:root /etc/kubernetes/pki/
|
||||
scored: true
|
||||
|
||||
- id: 1.1.20
|
||||
text: "Ensure that the Kubernetes PKI certificate file permissions are set to 600 or more restrictive (Manual)"
|
||||
audit: "find /etc/kubernetes/pki/ -name '*.crt' | xargs stat -c permissions=%a"
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chmod -R 600 /etc/kubernetes/pki/*.crt
|
||||
scored: false
|
||||
|
||||
- id: 1.1.21
|
||||
text: "Ensure that the Kubernetes PKI key file permissions are set to 600 (Manual)"
|
||||
audit: "find /etc/kubernetes/pki/ -name '*.key' | xargs stat -c permissions=%a"
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chmod -R 600 /etc/kubernetes/pki/*.key
|
||||
scored: false
|
||||
|
||||
- id: 1.2
|
||||
text: "API Server"
|
||||
checks:
|
||||
- id: 1.2.1
|
||||
text: "Ensure that the --anonymous-auth argument is set to false (Manual)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--anonymous-auth"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the below parameter.
|
||||
--anonymous-auth=false
|
||||
scored: false
|
||||
|
||||
- id: 1.2.2
|
||||
text: "Ensure that the --token-auth-file parameter is not set (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--token-auth-file"
|
||||
set: false
|
||||
remediation: |
|
||||
Follow the documentation and configure alternate mechanisms for authentication. Then,
|
||||
edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and remove the --token-auth-file=<filename> parameter.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.3
|
||||
text: "Ensure that the --DenyServiceExternalIPs is set (Manual)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--enable-admission-plugins"
|
||||
compare:
|
||||
op: have
|
||||
value: "DenyServiceExternalIPs"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and remove the `DenyServiceExternalIPs`
|
||||
from enabled admission plugins.
|
||||
scored: false
|
||||
|
||||
- id: 1.2.4
|
||||
text: "Ensure that the --kubelet-client-certificate and --kubelet-client-key arguments are set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "--kubelet-client-certificate"
|
||||
- flag: "--kubelet-client-key"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and set up the TLS connection between the
|
||||
apiserver and kubelets. Then, edit API server pod specification file
|
||||
$apiserverconf on the control plane node and set the
|
||||
kubelet client certificate and key parameters as below.
|
||||
--kubelet-client-certificate=<path/to/client-certificate-file>
|
||||
--kubelet-client-key=<path/to/client-key-file>
|
||||
scored: true
|
||||
|
||||
- id: 1.2.5
|
||||
text: "Ensure that the --kubelet-certificate-authority argument is set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--kubelet-certificate-authority"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and setup the TLS connection between
|
||||
the apiserver and kubelets. Then, edit the API server pod specification file
|
||||
$apiserverconf on the control plane node and set the
|
||||
--kubelet-certificate-authority parameter to the path to the cert file for the certificate authority.
|
||||
--kubelet-certificate-authority=<ca-string>
|
||||
scored: true
|
||||
|
||||
- id: 1.2.6
|
||||
text: "Ensure that the --authorization-mode argument is not set to AlwaysAllow (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--authorization-mode"
|
||||
compare:
|
||||
op: nothave
|
||||
value: "AlwaysAllow"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --authorization-mode parameter to values other than AlwaysAllow.
|
||||
One such example could be as below.
|
||||
--authorization-mode=RBAC
|
||||
scored: true
|
||||
|
||||
- id: 1.2.7
|
||||
text: "Ensure that the --authorization-mode argument includes Node (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--authorization-mode"
|
||||
compare:
|
||||
op: has
|
||||
value: "Node"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --authorization-mode parameter to a value that includes Node.
|
||||
--authorization-mode=Node,RBAC
|
||||
scored: true
|
||||
|
||||
- id: 1.2.8
|
||||
text: "Ensure that the --authorization-mode argument includes RBAC (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--authorization-mode"
|
||||
compare:
|
||||
op: has
|
||||
value: "RBAC"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --authorization-mode parameter to a value that includes RBAC,
|
||||
for example `--authorization-mode=Node,RBAC`.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.9
|
||||
text: "Ensure that the admission control plugin EventRateLimit is set (Manual)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--enable-admission-plugins"
|
||||
compare:
|
||||
op: has
|
||||
value: "EventRateLimit"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and set the desired limits in a configuration file.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
and set the below parameters.
|
||||
--enable-admission-plugins=...,EventRateLimit,...
|
||||
--admission-control-config-file=<path/to/configuration/file>
|
||||
scored: false
|
||||
|
||||
- id: 1.2.10
|
||||
text: "Ensure that the admission control plugin AlwaysAdmit is not set (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--enable-admission-plugins"
|
||||
compare:
|
||||
op: nothave
|
||||
value: AlwaysAdmit
|
||||
- flag: "--enable-admission-plugins"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and either remove the --enable-admission-plugins parameter, or set it to a
|
||||
value that does not include AlwaysAdmit.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.11
|
||||
text: "Ensure that the admission control plugin AlwaysPullImages is set (Manual)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--enable-admission-plugins"
|
||||
compare:
|
||||
op: has
|
||||
value: "AlwaysPullImages"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --enable-admission-plugins parameter to include
|
||||
AlwaysPullImages.
|
||||
--enable-admission-plugins=...,AlwaysPullImages,...
|
||||
scored: false
|
||||
|
||||
- id: 1.2.12
|
||||
text: "Ensure that the admission control plugin ServiceAccount is set (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--disable-admission-plugins"
|
||||
compare:
|
||||
op: nothave
|
||||
value: "ServiceAccount"
|
||||
- flag: "--disable-admission-plugins"
|
||||
set: false
|
||||
remediation: |
|
||||
Follow the documentation and create ServiceAccount objects as per your environment.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and ensure that the --disable-admission-plugins parameter is set to a
|
||||
value that does not include ServiceAccount.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.13
|
||||
text: "Ensure that the admission control plugin NamespaceLifecycle is set (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--disable-admission-plugins"
|
||||
compare:
|
||||
op: nothave
|
||||
value: "NamespaceLifecycle"
|
||||
- flag: "--disable-admission-plugins"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --disable-admission-plugins parameter to
|
||||
ensure it does not include NamespaceLifecycle.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.14
|
||||
text: "Ensure that the admission control plugin NodeRestriction is set (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--enable-admission-plugins"
|
||||
compare:
|
||||
op: has
|
||||
value: "NodeRestriction"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and configure NodeRestriction plug-in on kubelets.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --enable-admission-plugins parameter to a
|
||||
value that includes NodeRestriction.
|
||||
--enable-admission-plugins=...,NodeRestriction,...
|
||||
scored: true
|
||||
|
||||
- id: 1.2.15
|
||||
text: "Ensure that the --profiling argument is set to false (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--profiling"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the below parameter.
|
||||
--profiling=false
|
||||
scored: true
|
||||
|
||||
- id: 1.2.16
|
||||
text: "Ensure that the --audit-log-path argument is set (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--audit-log-path"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --audit-log-path parameter to a suitable path and
|
||||
file where you would like audit logs to be written, for example,
|
||||
--audit-log-path=/var/log/apiserver/audit.log
|
||||
scored: true
|
||||
|
||||
- id: 1.2.17
|
||||
text: "Ensure that the --audit-log-maxage argument is set to 30 or as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--audit-log-maxage"
|
||||
compare:
|
||||
op: gte
|
||||
value: 30
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --audit-log-maxage parameter to 30
|
||||
or as an appropriate number of days, for example,
|
||||
--audit-log-maxage=30
|
||||
scored: true
|
||||
|
||||
- id: 1.2.18
|
||||
text: "Ensure that the --audit-log-maxbackup argument is set to 10 or as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--audit-log-maxbackup"
|
||||
compare:
|
||||
op: gte
|
||||
value: 10
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --audit-log-maxbackup parameter to 10 or to an appropriate
|
||||
value. For example,
|
||||
--audit-log-maxbackup=10
|
||||
scored: true
|
||||
|
||||
- id: 1.2.19
|
||||
text: "Ensure that the --audit-log-maxsize argument is set to 100 or as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--audit-log-maxsize"
|
||||
compare:
|
||||
op: gte
|
||||
value: 100
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --audit-log-maxsize parameter to an appropriate size in MB.
|
||||
For example, to set it as 100 MB, --audit-log-maxsize=100
|
||||
scored: true
|
||||
|
||||
- id: 1.2.20
|
||||
text: "Ensure that the --request-timeout argument is set as appropriate (Manual)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
type: manual
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
and set the below parameter as appropriate and if needed.
|
||||
For example, --request-timeout=300s
|
||||
scored: false
|
||||
|
||||
- id: 1.2.21
|
||||
text: "Ensure that the --service-account-lookup argument is set to true (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--service-account-lookup"
|
||||
set: false
|
||||
- flag: "--service-account-lookup"
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the below parameter.
|
||||
--service-account-lookup=true
|
||||
Alternatively, you can delete the --service-account-lookup parameter from this file so
|
||||
that the default takes effect.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.22
|
||||
text: "Ensure that the --service-account-key-file argument is set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--service-account-key-file"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --service-account-key-file parameter
|
||||
to the public key file for service accounts. For example,
|
||||
--service-account-key-file=<filename>
|
||||
scored: true
|
||||
|
||||
- id: 1.2.23
|
||||
text: "Ensure that the --etcd-certfile and --etcd-keyfile arguments are set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "--etcd-certfile"
|
||||
- flag: "--etcd-keyfile"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and set up the TLS connection between the apiserver and etcd.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the etcd certificate and key file parameters.
|
||||
--etcd-certfile=<path/to/client-certificate-file>
|
||||
--etcd-keyfile=<path/to/client-key-file>
|
||||
scored: true
|
||||
|
||||
- id: 1.2.24
|
||||
text: "Ensure that the --tls-cert-file and --tls-private-key-file arguments are set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "--tls-cert-file"
|
||||
- flag: "--tls-private-key-file"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and set up the TLS connection on the apiserver.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the TLS certificate and private key file parameters.
|
||||
--tls-cert-file=<path/to/tls-certificate-file>
|
||||
--tls-private-key-file=<path/to/tls-key-file>
|
||||
scored: true
|
||||
|
||||
- id: 1.2.25
|
||||
text: "Ensure that the --client-ca-file argument is set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--client-ca-file"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and set up the TLS connection on the apiserver.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the client certificate authority file.
|
||||
--client-ca-file=<path/to/client-ca-file>
|
||||
scored: true
|
||||
|
||||
- id: 1.2.26
|
||||
text: "Ensure that the --etcd-cafile argument is set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--etcd-cafile"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and set up the TLS connection between the apiserver and etcd.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the etcd certificate authority file parameter.
|
||||
--etcd-cafile=<path/to/ca-file>
|
||||
scored: true
|
||||
|
||||
- id: 1.2.27
|
||||
text: "Ensure that the --encryption-provider-config argument is set as appropriate (Manual)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--encryption-provider-config"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and configure a EncryptionConfig file.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --encryption-provider-config parameter to the path of that file.
|
||||
For example, --encryption-provider-config=</path/to/EncryptionConfig/File>
|
||||
scored: false
|
||||
|
||||
- id: 1.2.28
|
||||
text: "Ensure that encryption providers are appropriately configured (Manual)"
|
||||
audit: |
|
||||
ENCRYPTION_PROVIDER_CONFIG=$(ps -ef | grep $apiserverbin | grep -- --encryption-provider-config | sed 's%.*encryption-provider-config[= ]\([^ ]*\).*%\1%')
|
||||
if test -e $ENCRYPTION_PROVIDER_CONFIG; then grep -A1 'providers:' $ENCRYPTION_PROVIDER_CONFIG | tail -n1 | grep -o "[A-Za-z]*" | sed 's/^/provider=/'; fi
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "provider"
|
||||
compare:
|
||||
op: valid_elements
|
||||
value: "aescbc,kms,secretbox"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and configure a EncryptionConfig file.
|
||||
In this file, choose aescbc, kms or secretbox as the encryption provider.
|
||||
scored: false
|
||||
|
||||
- id: 1.2.29
|
||||
text: "Ensure that the API Server only makes use of Strong Cryptographic Ciphers (Manual)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--tls-cipher-suites"
|
||||
compare:
|
||||
op: valid_elements
|
||||
value: "TLS_AES_128_GCM_SHA256,TLS_AES_256_GCM_SHA384,TLS_CHACHA20_POLY1305_SHA256,TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256,TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256,TLS_RSA_WITH_3DES_EDE_CBC_SHA,TLS_RSA_WITH_AES_128_CBC_SHA,TLS_RSA_WITH_AES_128_GCM_SHA256,TLS_RSA_WITH_AES_256_CBC_SHA,TLS_RSA_WITH_AES_256_GCM_SHA384"
|
||||
remediation: |
|
||||
Edit the API server pod specification file /etc/kubernetes/manifests/kube-apiserver.yaml
|
||||
on the control plane node and set the below parameter.
|
||||
--tls-cipher-suites=TLS_AES_128_GCM_SHA256,TLS_AES_256_GCM_SHA384,TLS_CHACHA20_POLY1305_SHA256,
|
||||
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
|
||||
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
|
||||
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256,
|
||||
TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
|
||||
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,
|
||||
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256,TLS_RSA_WITH_3DES_EDE_CBC_SHA,TLS_RSA_WITH_AES_128_CBC_SHA,
|
||||
TLS_RSA_WITH_AES_128_GCM_SHA256,TLS_RSA_WITH_AES_256_CBC_SHA,TLS_RSA_WITH_AES_256_GCM_SHA384
|
||||
scored: false
|
||||
|
||||
- id: 1.3
|
||||
text: "Controller Manager"
|
||||
checks:
|
||||
- id: 1.3.1
|
||||
text: "Ensure that the --terminated-pod-gc-threshold argument is set as appropriate (Manual)"
|
||||
audit: "/bin/ps -ef | grep $controllermanagerbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--terminated-pod-gc-threshold"
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node and set the --terminated-pod-gc-threshold to an appropriate threshold,
|
||||
for example, --terminated-pod-gc-threshold=10
|
||||
scored: false
|
||||
|
||||
- id: 1.3.2
|
||||
text: "Ensure that the --profiling argument is set to false (Automated)"
|
||||
audit: "/bin/ps -ef | grep $controllermanagerbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--profiling"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node and set the below parameter.
|
||||
--profiling=false
|
||||
scored: true
|
||||
|
||||
- id: 1.3.3
|
||||
text: "Ensure that the --use-service-account-credentials argument is set to true (Automated)"
|
||||
audit: "/bin/ps -ef | grep $controllermanagerbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--use-service-account-credentials"
|
||||
compare:
|
||||
op: noteq
|
||||
value: false
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node to set the below parameter.
|
||||
--use-service-account-credentials=true
|
||||
scored: true
|
||||
|
||||
- id: 1.3.4
|
||||
text: "Ensure that the --service-account-private-key-file argument is set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | grep $controllermanagerbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--service-account-private-key-file"
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node and set the --service-account-private-key-file parameter
|
||||
to the private key file for service accounts.
|
||||
--service-account-private-key-file=<filename>
|
||||
scored: true
|
||||
|
||||
- id: 1.3.5
|
||||
text: "Ensure that the --root-ca-file argument is set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | grep $controllermanagerbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--root-ca-file"
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node and set the --root-ca-file parameter to the certificate bundle file`.
|
||||
--root-ca-file=<path/to/file>
|
||||
scored: true
|
||||
|
||||
- id: 1.3.6
|
||||
text: "Ensure that the RotateKubeletServerCertificate argument is set to true (Automated)"
|
||||
audit: "/bin/ps -ef | grep $controllermanagerbin | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--feature-gates"
|
||||
compare:
|
||||
op: nothave
|
||||
value: "RotateKubeletServerCertificate=false"
|
||||
set: true
|
||||
- flag: "--feature-gates"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node and set the --feature-gates parameter to include RotateKubeletServerCertificate=true.
|
||||
--feature-gates=RotateKubeletServerCertificate=true
|
||||
scored: true
|
||||
|
||||
- id: 1.3.7
|
||||
text: "Ensure that the --bind-address argument is set to 127.0.0.1 (Automated)"
|
||||
audit: "/bin/ps -ef | grep $controllermanagerbin | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--bind-address"
|
||||
compare:
|
||||
op: eq
|
||||
value: "127.0.0.1"
|
||||
- flag: "--bind-address"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node and ensure the correct value for the --bind-address parameter
|
||||
scored: true
|
||||
|
||||
- id: 1.4
|
||||
text: "Scheduler"
|
||||
checks:
|
||||
- id: 1.4.1
|
||||
text: "Ensure that the --profiling argument is set to false (Automated)"
|
||||
audit: "/bin/ps -ef | grep $schedulerbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--profiling"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
Edit the Scheduler pod specification file $schedulerconf file
|
||||
on the control plane node and set the below parameter.
|
||||
--profiling=false
|
||||
scored: true
|
||||
|
||||
- id: 1.4.2
|
||||
text: "Ensure that the --bind-address argument is set to 127.0.0.1 (Automated)"
|
||||
audit: "/bin/ps -ef | grep $schedulerbin | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--bind-address"
|
||||
compare:
|
||||
op: eq
|
||||
value: "127.0.0.1"
|
||||
- flag: "--bind-address"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the Scheduler pod specification file $schedulerconf
|
||||
on the control plane node and ensure the correct value for the --bind-address parameter
|
||||
scored: true
|
||||
478
cfg/cis-1.9/node.yaml
Normal file
478
cfg/cis-1.9/node.yaml
Normal file
@@ -0,0 +1,478 @@
|
||||
---
|
||||
controls:
|
||||
version: "cis-1.9"
|
||||
id: 4
|
||||
text: "Worker Node Security Configuration"
|
||||
type: "node"
|
||||
groups:
|
||||
- id: 4.1
|
||||
text: "Worker Node Configuration Files"
|
||||
checks:
|
||||
- id: 4.1.1
|
||||
text: "Ensure that the kubelet service file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletsvc; then stat -c permissions=%a $kubeletsvc; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example, chmod 600 $kubeletsvc
|
||||
scored: true
|
||||
|
||||
- id: 4.1.2
|
||||
text: "Ensure that the kubelet service file ownership is set to root:root (Automated)"
|
||||
audit: '/bin/sh -c "if test -e $kubeletsvc; then stat -c %U:%G $kubeletsvc; else echo \"File not found\"; fi"'
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: root:root
|
||||
- flag: "File not found"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chown root:root $kubeletsvc
|
||||
scored: true
|
||||
|
||||
- id: 4.1.3
|
||||
text: "If proxy kubeconfig file exists ensure permissions are set to 600 or more restrictive (Manual)"
|
||||
audit: '/bin/sh -c ''if test -e $proxykubeconfig; then stat -c permissions=%a $proxykubeconfig; fi'' '
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
set: true
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chmod 600 $proxykubeconfig
|
||||
scored: false
|
||||
|
||||
- id: 4.1.4
|
||||
text: "If proxy kubeconfig file exists ensure ownership is set to root:root (Manual)"
|
||||
audit: '/bin/sh -c ''if test -e $proxykubeconfig; then stat -c %U:%G $proxykubeconfig; fi'' '
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example, chown root:root $proxykubeconfig
|
||||
scored: false
|
||||
|
||||
- id: 4.1.5
|
||||
text: "Ensure that the --kubeconfig kubelet.conf file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletkubeconfig; then stat -c permissions=%a $kubeletkubeconfig; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chmod 600 $kubeletkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 4.1.6
|
||||
text: "Ensure that the --kubeconfig kubelet.conf file ownership is set to root:root (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletkubeconfig; then stat -c %U:%G $kubeletkubeconfig; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chown root:root $kubeletkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 4.1.7
|
||||
text: "Ensure that the certificate authorities file permissions are set to 600 or more restrictive (Manual)"
|
||||
audit: |
|
||||
CAFILE=$(ps -ef | grep kubelet | grep -v apiserver | grep -- --client-ca-file= | awk -F '--client-ca-file=' '{print $2}' | awk '{print $1}' | uniq)
|
||||
if test -z $CAFILE; then CAFILE=$kubeletcafile; fi
|
||||
if test -e $CAFILE; then stat -c permissions=%a $CAFILE; fi
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the following command to modify the file permissions of the
|
||||
--client-ca-file chmod 600 <filename>
|
||||
scored: false
|
||||
|
||||
- id: 4.1.8
|
||||
text: "Ensure that the client certificate authorities file ownership is set to root:root (Manual)"
|
||||
audit: |
|
||||
CAFILE=$(ps -ef | grep kubelet | grep -v apiserver | grep -- --client-ca-file= | awk -F '--client-ca-file=' '{print $2}' | awk '{print $1}' | uniq)
|
||||
if test -z $CAFILE; then CAFILE=$kubeletcafile; fi
|
||||
if test -e $CAFILE; then stat -c %U:%G $CAFILE; fi
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
compare:
|
||||
op: eq
|
||||
value: root:root
|
||||
remediation: |
|
||||
Run the following command to modify the ownership of the --client-ca-file.
|
||||
chown root:root <filename>
|
||||
scored: false
|
||||
|
||||
- id: 4.1.9
|
||||
text: "If the kubelet config.yaml configuration file is being used validate permissions set to 600 or more restrictive (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletconf; then stat -c permissions=%a $kubeletconf; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the following command (using the config file location identified in the Audit step)
|
||||
chmod 600 $kubeletconf
|
||||
scored: true
|
||||
|
||||
- id: 4.1.10
|
||||
text: "If the kubelet config.yaml configuration file is being used validate file ownership is set to root:root (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletconf; then stat -c %U:%G $kubeletconf; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Run the following command (using the config file location identified in the Audit step)
|
||||
chown root:root $kubeletconf
|
||||
scored: true
|
||||
|
||||
- id: 4.2
|
||||
text: "Kubelet"
|
||||
checks:
|
||||
- id: 4.2.1
|
||||
text: "Ensure that the --anonymous-auth argument is set to false (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--anonymous-auth"
|
||||
path: '{.authentication.anonymous.enabled}'
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `authentication: anonymous: enabled` to
|
||||
`false`.
|
||||
If using executable arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
`--anonymous-auth=false`
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.2
|
||||
text: "Ensure that the --authorization-mode argument is not set to AlwaysAllow (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --authorization-mode
|
||||
path: '{.authorization.mode}'
|
||||
compare:
|
||||
op: nothave
|
||||
value: AlwaysAllow
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `authorization.mode` to Webhook. If
|
||||
using executable arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_AUTHZ_ARGS variable.
|
||||
--authorization-mode=Webhook
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.3
|
||||
text: "Ensure that the --client-ca-file argument is set as appropriate (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --client-ca-file
|
||||
path: '{.authentication.x509.clientCAFile}'
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `authentication.x509.clientCAFile` to
|
||||
the location of the client CA file.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_AUTHZ_ARGS variable.
|
||||
--client-ca-file=<path/to/client-ca-file>
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.4
|
||||
text: "Verify that the --read-only-port argument is set to 0 (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--read-only-port"
|
||||
path: '{.readOnlyPort}'
|
||||
compare:
|
||||
op: eq
|
||||
value: 0
|
||||
- flag: "--read-only-port"
|
||||
path: '{.readOnlyPort}'
|
||||
set: false
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `readOnlyPort` to 0.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
--read-only-port=0
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.5
|
||||
text: "Ensure that the --streaming-connection-idle-timeout argument is not set to 0 (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --streaming-connection-idle-timeout
|
||||
path: '{.streamingConnectionIdleTimeout}'
|
||||
compare:
|
||||
op: noteq
|
||||
value: 0
|
||||
- flag: --streaming-connection-idle-timeout
|
||||
path: '{.streamingConnectionIdleTimeout}'
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `streamingConnectionIdleTimeout` to a
|
||||
value other than 0.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
--streaming-connection-idle-timeout=5m
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.6
|
||||
text: "Ensure that the --make-iptables-util-chains argument is set to true (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --make-iptables-util-chains
|
||||
path: '{.makeIPTablesUtilChains}'
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
- flag: --make-iptables-util-chains
|
||||
path: '{.makeIPTablesUtilChains}'
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `makeIPTablesUtilChains` to `true`.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
remove the --make-iptables-util-chains argument from the
|
||||
KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.7
|
||||
text: "Ensure that the --hostname-override argument is not set (Manual)"
|
||||
# This is one of those properties that can only be set as a command line argument.
|
||||
# To check if the property is set as expected, we need to parse the kubelet command
|
||||
# instead reading the Kubelet Configuration file.
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --hostname-override
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the kubelet service file $kubeletsvc
|
||||
on each worker node and remove the --hostname-override argument from the
|
||||
KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.8
|
||||
text: "Ensure that the eventRecordQPS argument is set to a level which ensures appropriate event capture (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --event-qps
|
||||
path: '{.eventRecordQPS}'
|
||||
compare:
|
||||
op: gte
|
||||
value: 0
|
||||
- flag: --event-qps
|
||||
path: '{.eventRecordQPS}'
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `eventRecordQPS` to an appropriate level.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.9
|
||||
text: "Ensure that the --tls-cert-file and --tls-private-key-file arguments are set as appropriate (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --tls-cert-file
|
||||
path: '{.tlsCertFile}'
|
||||
- flag: --tls-private-key-file
|
||||
path: '{.tlsPrivateKeyFile}'
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `tlsCertFile` to the location
|
||||
of the certificate file to use to identify this Kubelet, and `tlsPrivateKeyFile`
|
||||
to the location of the corresponding private key file.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameters in KUBELET_CERTIFICATE_ARGS variable.
|
||||
--tls-cert-file=<path/to/tls-certificate-file>
|
||||
--tls-private-key-file=<path/to/tls-key-file>
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.10
|
||||
text: "Ensure that the --rotate-certificates argument is not set to false (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --rotate-certificates
|
||||
path: '{.rotateCertificates}'
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
- flag: --rotate-certificates
|
||||
path: '{.rotateCertificates}'
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to add the line `rotateCertificates` to `true` or
|
||||
remove it altogether to use the default value.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
remove --rotate-certificates=false argument from the KUBELET_CERTIFICATE_ARGS
|
||||
variable.
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.11
|
||||
text: "Verify that the RotateKubeletServerCertificate argument is set to true (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: RotateKubeletServerCertificate
|
||||
path: '{.featureGates.RotateKubeletServerCertificate}'
|
||||
compare:
|
||||
op: nothave
|
||||
value: false
|
||||
- flag: RotateKubeletServerCertificate
|
||||
path: '{.featureGates.RotateKubeletServerCertificate}'
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the kubelet service file $kubeletsvc
|
||||
on each worker node and set the below parameter in KUBELET_CERTIFICATE_ARGS variable.
|
||||
--feature-gates=RotateKubeletServerCertificate=true
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.12
|
||||
text: "Ensure that the Kubelet only makes use of Strong Cryptographic Ciphers (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --tls-cipher-suites
|
||||
path: '{range .tlsCipherSuites[:]}{}{'',''}{end}'
|
||||
compare:
|
||||
op: valid_elements
|
||||
value: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `TLSCipherSuites` to
|
||||
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
|
||||
or to a subset of these values.
|
||||
If using executable arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the --tls-cipher-suites parameter as follows, or to a subset of these values.
|
||||
--tls-cipher-suites=TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.13
|
||||
text: "Ensure that a limit is set on pod PIDs (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --pod-max-pids
|
||||
path: '{.podPidsLimit}'
|
||||
remediation: |
|
||||
Decide on an appropriate level for this parameter and set it,
|
||||
either via the --pod-max-pids command line parameter or the PodPidsLimit configuration file setting.
|
||||
scored: false
|
||||
|
||||
- id: 4.3
|
||||
text: "kube-proxy"
|
||||
checks:
|
||||
- id: 4.3.1
|
||||
text: "Ensure that the kube-proxy metrics service is bound to localhost (Automated)"
|
||||
audit: "/bin/ps -fC $proxybin"
|
||||
audit_config: "/bin/sh -c 'if test -e $proxykubeconfig; then cat $proxykubeconfig; fi'"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--metrics-bind-address"
|
||||
path: '{.metricsBindAddress}'
|
||||
compare:
|
||||
op: has
|
||||
value: "127.0.0.1"
|
||||
- flag: "--metrics-bind-address"
|
||||
path: '{.metricsBindAddress}'
|
||||
set: false
|
||||
remediation: |
|
||||
Modify or remove any values which bind the metrics service to a non-localhost address.
|
||||
The default value is 127.0.0.1:10249.
|
||||
scored: true
|
||||
372
cfg/cis-1.9/policies.yaml
Normal file
372
cfg/cis-1.9/policies.yaml
Normal file
@@ -0,0 +1,372 @@
|
||||
---
|
||||
controls:
|
||||
version: "cis-1.9"
|
||||
id: 5
|
||||
text: "Kubernetes Policies"
|
||||
type: "policies"
|
||||
groups:
|
||||
- id: 5.1
|
||||
text: "RBAC and Service Accounts"
|
||||
checks:
|
||||
- id: 5.1.1
|
||||
text: "Ensure that the cluster-admin role is only used where required (Automated)"
|
||||
audit: |
|
||||
kubectl get clusterrolebindings -o=custom-columns=NAME:.metadata.name,ROLE:.roleRef.name,SUBJECT:.subjects[*].name --no-headers | while read -r role_name role_binding subject
|
||||
do
|
||||
if [[ "${role_name}" != "cluster-admin" && "${role_binding}" == "cluster-admin" ]]; then
|
||||
is_compliant="false"
|
||||
else
|
||||
is_compliant="true"
|
||||
fi;
|
||||
echo "**role_name: ${role_name} role_binding: ${rolebinding} subject: ${subject} is_compliant: ${is_compliant}"
|
||||
done
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "is_compliant"
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
remediation: |
|
||||
Identify all clusterrolebindings to the cluster-admin role. Check if they are used and
|
||||
if they need this role or if they could use a role with fewer privileges.
|
||||
Where possible, first bind users to a lower privileged role and then remove the
|
||||
clusterrolebinding to the cluster-admin role : kubectl delete clusterrolebinding [name]
|
||||
Condition: is_compliant is false if rolename is not cluster-admin and rolebinding is cluster-admin.
|
||||
scored: true
|
||||
- id: 5.1.2
|
||||
text: "Minimize access to secrets (Automated)"
|
||||
audit: "echo \"canGetListWatchSecretsAsSystemAuthenticated: $(kubectl auth can-i get,list,watch secrets --all-namespaces --as=system:authenticated)\""
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "canGetListWatchSecretsAsSystemAuthenticated"
|
||||
compare:
|
||||
op: eq
|
||||
value: no
|
||||
remediation: |
|
||||
Where possible, remove get, list and watch access to Secret objects in the cluster.
|
||||
scored: true
|
||||
- id: 5.1.3
|
||||
text: "Minimize wildcard use in Roles and ClusterRoles (Automated)"
|
||||
audit: |
|
||||
# Check Roles
|
||||
kubectl get roles --all-namespaces -o custom-columns=ROLE_NAMESPACE:.metadata.namespace,ROLE_NAME:.metadata.name --no-headers | while read -r role_namespace role_name
|
||||
do
|
||||
role_rules=$(kubectl get role -n "${role_namespace}" "${role_name}" -o=json | jq -c '.rules')
|
||||
if echo "${role_rules}" | grep -q "\[\"\*\"\]"; then
|
||||
role_is_compliant="false"
|
||||
else
|
||||
role_is_compliant="true"
|
||||
fi;
|
||||
echo "**role_name: ${role_name} role_namespace: ${role_namespace} role_rules: ${role_rules} role_is_compliant: ${role_is_compliant}"
|
||||
done
|
||||
|
||||
# Check ClusterRoles
|
||||
kubectl get clusterroles -o custom-columns=CLUSTERROLE_NAME:.metadata.name --no-headers | while read -r clusterrole_name
|
||||
do
|
||||
clusterrole_rules=$(kubectl get clusterrole "${clusterrole_name}" -o=json | jq -c '.rules')
|
||||
if echo "${clusterrole_rules}" | grep -q "\[\"\*\"\]"; then
|
||||
clusterrole_is_compliant="false"
|
||||
else
|
||||
clusterrole_is_compliant="true"
|
||||
fi;
|
||||
echo "**clusterrole_name: ${clusterrole_name} clusterrole_rules: ${clusterrole_rules} clusterrole_is_compliant: ${clusterrole_is_compliant}"
|
||||
done
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "role_is_compliant"
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
set: true
|
||||
- flag: "clusterrole_is_compliant"
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
set: true
|
||||
remediation: |
|
||||
Where possible replace any use of wildcards ["*"] in roles and clusterroles with specific
|
||||
objects or actions.
|
||||
Condition: role_is_compliant is false if ["*"] is found in rules.
|
||||
Condition: clusterrole_is_compliant is false if ["*"] is found in rules.
|
||||
scored: true
|
||||
- id: 5.1.4
|
||||
text: "Minimize access to create pods (Automated)"
|
||||
audit: |
|
||||
echo "canCreatePodsAsSystemAuthenticated: $(kubectl auth can-i create pods --all-namespaces --as=system:authenticated)"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "canCreatePodsAsSystemAuthenticated"
|
||||
compare:
|
||||
op: eq
|
||||
value: no
|
||||
remediation: |
|
||||
Where possible, remove create access to pod objects in the cluster.
|
||||
scored: true
|
||||
- id: 5.1.5
|
||||
text: "Ensure that default service accounts are not actively used. (Automated)"
|
||||
audit: |
|
||||
kubectl get serviceaccount --all-namespaces --field-selector metadata.name=default -o=json | jq -r '.items[] | " namespace: \(.metadata.namespace), kind: \(.kind), name: \(.metadata.name), automountServiceAccountToken: \(.automountServiceAccountToken | if . == null then "notset" else . end )"' | xargs -L 1
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "automountServiceAccountToken"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
set: true
|
||||
remediation: |
|
||||
Create explicit service accounts wherever a Kubernetes workload requires specific access
|
||||
to the Kubernetes API server.
|
||||
Modify the configuration of each default service account to include this value
|
||||
`automountServiceAccountToken: false`.
|
||||
scored: true
|
||||
- id: 5.1.6
|
||||
text: "Ensure that Service Account Tokens are only mounted where necessary (Automated)"
|
||||
audit: |
|
||||
kubectl get pods --all-namespaces -o custom-columns=POD_NAMESPACE:.metadata.namespace,POD_NAME:.metadata.name,POD_SERVICE_ACCOUNT:.spec.serviceAccount,POD_IS_AUTOMOUNTSERVICEACCOUNTTOKEN:.spec.automountServiceAccountToken --no-headers | while read -r pod_namespace pod_name pod_service_account pod_is_automountserviceaccounttoken
|
||||
do
|
||||
# Retrieve automountServiceAccountToken's value for ServiceAccount and Pod, set to notset if null or <none>.
|
||||
svacc_is_automountserviceaccounttoken=$(kubectl get serviceaccount -n ${pod_namespace} ${pod_service_account} -o json | jq -r '.automountServiceAccountToken' | sed -e 's/<none>/notset/g' -e 's/null/notset/g')
|
||||
pod_is_automountserviceaccounttoken=$(echo ${pod_is_automountserviceaccounttoken} | sed -e 's/<none>/notset/g' -e 's/null/notset/g')
|
||||
if [[ "${svacc_is_automountserviceaccounttoken}" == "false" && ( "${pod_is_automountserviceaccounttoken}" == "false" || "${pod_is_automountserviceaccounttoken}" == "notset" ) ]]; then
|
||||
is_compliant="true"
|
||||
elif [[ "${svacc_is_automountserviceaccounttoken}" == "true" && "${pod_is_automountserviceaccounttoken}" == "false" ]]; then
|
||||
is_compliant="true"
|
||||
else
|
||||
is_compliant="false"
|
||||
fi
|
||||
echo "**namespace: ${pod_namespace} pod_name: ${pod_name} service_account: ${pod_service_account} pod_is_automountserviceaccounttoken: ${pod_is_automountserviceaccounttoken} svacc_is_automountServiceAccountToken: ${svacc_is_automountserviceaccounttoken} is_compliant: ${is_compliant}"
|
||||
done
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "is_compliant"
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
remediation: |
|
||||
Modify the definition of ServiceAccounts and Pods which do not need to mount service
|
||||
account tokens to disable it, with `automountServiceAccountToken: false`.
|
||||
If both the ServiceAccount and the Pod's .spec specify a value for automountServiceAccountToken, the Pod spec takes precedence.
|
||||
Condition: Pod is_compliant to true when
|
||||
- ServiceAccount is automountServiceAccountToken: false and Pod is automountServiceAccountToken: false or notset
|
||||
- ServiceAccount is automountServiceAccountToken: true notset and Pod is automountServiceAccountToken: false
|
||||
scored: true
|
||||
- id: 5.1.7
|
||||
text: "Avoid use of system:masters group (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Remove the system:masters group from all users in the cluster.
|
||||
scored: false
|
||||
- id: 5.1.8
|
||||
text: "Limit use of the Bind, Impersonate and Escalate permissions in the Kubernetes cluster (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove the impersonate, bind and escalate rights from subjects.
|
||||
scored: false
|
||||
- id: 5.1.9
|
||||
text: "Minimize access to create persistent volumes (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove create access to PersistentVolume objects in the cluster.
|
||||
scored: false
|
||||
- id: 5.1.10
|
||||
text: "Minimize access to the proxy sub-resource of nodes (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove access to the proxy sub-resource of node objects.
|
||||
scored: false
|
||||
- id: 5.1.11
|
||||
text: "Minimize access to the approval sub-resource of certificatesigningrequests objects (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove access to the approval sub-resource of certificatesigningrequest objects.
|
||||
scored: false
|
||||
- id: 5.1.12
|
||||
text: "Minimize access to webhook configuration objects (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove access to the validatingwebhookconfigurations or mutatingwebhookconfigurations objects
|
||||
scored: false
|
||||
- id: 5.1.13
|
||||
text: "Minimize access to the service account token creation (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove access to the token sub-resource of serviceaccount objects.
|
||||
scored: false
|
||||
- id: 5.2
|
||||
text: "Pod Security Standards"
|
||||
checks:
|
||||
- id: 5.2.1
|
||||
text: "Ensure that the cluster has at least one active policy control mechanism in place (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Ensure that either Pod Security Admission or an external policy control system is in place
|
||||
for every namespace which contains user workloads.
|
||||
scored: false
|
||||
- id: 5.2.2
|
||||
text: "Minimize the admission of privileged containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of privileged containers.
|
||||
scored: false
|
||||
- id: 5.2.3
|
||||
text: "Minimize the admission of containers wishing to share the host process ID namespace (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of `hostPID` containers.
|
||||
scored: false
|
||||
- id: 5.2.4
|
||||
text: "Minimize the admission of containers wishing to share the host IPC namespace (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of `hostIPC` containers.
|
||||
scored: false
|
||||
- id: 5.2.5
|
||||
text: "Minimize the admission of containers wishing to share the host network namespace (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of `hostNetwork` containers.
|
||||
scored: false
|
||||
- id: 5.2.6
|
||||
text: "Minimize the admission of containers with allowPrivilegeEscalation (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers with `.spec.allowPrivilegeEscalation` set to `true`.
|
||||
scored: false
|
||||
- id: 5.2.7
|
||||
text: "Minimize the admission of root containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Create a policy for each namespace in the cluster, ensuring that either `MustRunAsNonRoot`
|
||||
or `MustRunAs` with the range of UIDs not including 0, is set.
|
||||
scored: false
|
||||
- id: 5.2.8
|
||||
text: "Minimize the admission of containers with the NET_RAW capability (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers with the `NET_RAW` capability.
|
||||
scored: false
|
||||
- id: 5.2.9
|
||||
text: "Minimize the admission of containers with added capabilities (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Ensure that `allowedCapabilities` is not present in policies for the cluster unless
|
||||
it is set to an empty array.
|
||||
scored: false
|
||||
- id: 5.2.10
|
||||
text: "Minimize the admission of containers with capabilities assigned (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Review the use of capabilites in applications running on your cluster. Where a namespace
|
||||
contains applicaions which do not require any Linux capabities to operate consider adding
|
||||
a PSP which forbids the admission of containers which do not drop all capabilities.
|
||||
scored: false
|
||||
- id: 5.2.11
|
||||
text: "Minimize the admission of Windows HostProcess containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers that have `.securityContext.windowsOptions.hostProcess` set to `true`.
|
||||
scored: false
|
||||
- id: 5.2.12
|
||||
text: "Minimize the admission of HostPath volumes (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers with `hostPath` volumes.
|
||||
scored: false
|
||||
- id: 5.2.13
|
||||
text: "Minimize the admission of containers which use HostPorts (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers which use `hostPort` sections.
|
||||
scored: false
|
||||
- id: 5.3
|
||||
text: "Network Policies and CNI"
|
||||
checks:
|
||||
- id: 5.3.1
|
||||
text: "Ensure that the CNI in use supports NetworkPolicies (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
If the CNI plugin in use does not support network policies, consideration should be given to
|
||||
making use of a different plugin, or finding an alternate mechanism for restricting traffic
|
||||
in the Kubernetes cluster.
|
||||
scored: false
|
||||
- id: 5.3.2
|
||||
text: "Ensure that all Namespaces have NetworkPolicies defined (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the documentation and create NetworkPolicy objects as you need them.
|
||||
scored: false
|
||||
- id: 5.4
|
||||
text: "Secrets Management"
|
||||
checks:
|
||||
- id: 5.4.1
|
||||
text: "Prefer using Secrets as files over Secrets as environment variables (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
If possible, rewrite application code to read Secrets from mounted secret files, rather than
|
||||
from environment variables.
|
||||
scored: false
|
||||
- id: 5.4.2
|
||||
text: "Consider external secret storage (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Refer to the Secrets management options offered by your cloud provider or a third-party
|
||||
secrets management solution.
|
||||
scored: false
|
||||
- id: 5.5
|
||||
text: "Extensible Admission Control"
|
||||
checks:
|
||||
- id: 5.5.1
|
||||
text: "Configure Image Provenance using ImagePolicyWebhook admission controller (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and setup image provenance.
|
||||
scored: false
|
||||
- id: 5.7
|
||||
text: "General Policies"
|
||||
checks:
|
||||
- id: 5.7.1
|
||||
text: "Create administrative boundaries between resources using namespaces (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the documentation and create namespaces for objects in your deployment as you need
|
||||
them.
|
||||
scored: false
|
||||
- id: 5.7.2
|
||||
text: "Ensure that the seccomp profile is set to docker/default in your Pod definitions (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Use `securityContext` to enable the docker/default seccomp profile in your pod definitions.
|
||||
An example is as below:
|
||||
securityContext:
|
||||
seccompProfile:
|
||||
type: RuntimeDefault
|
||||
scored: false
|
||||
- id: 5.7.3
|
||||
text: "Apply SecurityContext to your Pods and Containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and apply SecurityContexts to your Pods. For a
|
||||
suggested list of SecurityContexts, you may refer to the CIS Security Benchmark for Docker
|
||||
Containers.
|
||||
scored: false
|
||||
- id: 5.7.4
|
||||
text: "The default namespace should not be used (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Ensure that namespaces are created to allow for appropriate segregation of Kubernetes
|
||||
resources and that all new resources are created in a specific namespace.
|
||||
scored: false
|
||||
107
cfg/config.yaml
107
cfg/config.yaml
@@ -36,6 +36,7 @@ master:
|
||||
- /var/snap/microk8s/current/args/kube-apiserver
|
||||
- /etc/origin/master/master-config.yaml
|
||||
- /etc/kubernetes/manifests/talos-kube-apiserver.yaml
|
||||
- /var/lib/rancher/rke2/agent/pod-manifests/kube-apiserver.yaml
|
||||
defaultconf: /etc/kubernetes/manifests/kube-apiserver.yaml
|
||||
|
||||
scheduler:
|
||||
@@ -53,6 +54,7 @@ master:
|
||||
- /var/snap/microk8s/current/args/kube-scheduler
|
||||
- /etc/origin/master/scheduler.json
|
||||
- /etc/kubernetes/manifests/talos-kube-scheduler.yaml
|
||||
- /var/lib/rancher/rke2/agent/pod-manifests/kube-scheduler.yaml
|
||||
defaultconf: /etc/kubernetes/manifests/kube-scheduler.yaml
|
||||
kubeconfig:
|
||||
- /etc/kubernetes/scheduler.conf
|
||||
@@ -77,6 +79,7 @@ master:
|
||||
- /var/snap/kube-controller-manager/current/args
|
||||
- /var/snap/microk8s/current/args/kube-controller-manager
|
||||
- /etc/kubernetes/manifests/talos-kube-controller-manager.yaml
|
||||
- /var/lib/rancher/rke2/agent/pod-manifests/kube-controller-manager.yaml
|
||||
defaultconf: /etc/kubernetes/manifests/kube-controller-manager.yaml
|
||||
kubeconfig:
|
||||
- /etc/kubernetes/controller-manager.conf
|
||||
@@ -92,6 +95,7 @@ master:
|
||||
datadirs:
|
||||
- /var/lib/etcd/default.etcd
|
||||
- /var/lib/etcd/data.etcd
|
||||
- /var/lib/rancher/k3s/server/db/etcd
|
||||
confs:
|
||||
- /etc/kubernetes/manifests/etcd.yaml
|
||||
- /etc/kubernetes/manifests/etcd.yml
|
||||
@@ -101,6 +105,8 @@ master:
|
||||
- /var/snap/etcd/common/etcd.conf.yaml
|
||||
- /var/snap/microk8s/current/args/etcd
|
||||
- /usr/lib/systemd/system/etcd.service
|
||||
- /var/lib/rancher/rke2/server/db/etcd/config
|
||||
- /var/lib/rancher/k3s/server/db/etcd/config
|
||||
defaultconf: /etc/kubernetes/manifests/etcd.yaml
|
||||
defaultdatadir: /var/lib/etcd/default.etcd
|
||||
|
||||
@@ -132,6 +138,9 @@ node:
|
||||
- "/etc/kubernetes/certs/ca.crt"
|
||||
- "/etc/kubernetes/cert/ca.pem"
|
||||
- "/var/snap/microk8s/current/certs/ca.crt"
|
||||
- "/var/lib/rancher/rke2/agent/server.crt"
|
||||
- "/var/lib/rancher/rke2/agent/client-ca.crt"
|
||||
- "/var/lib/rancher/k3s/agent/client-ca.crt"
|
||||
svc:
|
||||
# These paths must also be included
|
||||
# in the 'confs' property below
|
||||
@@ -151,8 +160,12 @@ node:
|
||||
- "/var/lib/kubelet/kubeconfig"
|
||||
- "/etc/kubernetes/kubelet-kubeconfig"
|
||||
- "/etc/kubernetes/kubelet/kubeconfig"
|
||||
- "/etc/kubernetes/ssl/kubecfg-kube-node.yaml"
|
||||
- "/var/snap/microk8s/current/credentials/kubelet.config"
|
||||
- "/etc/kubernetes/kubeconfig-kubelet"
|
||||
- "/var/lib/rancher/rke2/agent/kubelet.kubeconfig"
|
||||
- "/var/lib/rancher/k3s/server/cred/admin.kubeconfig"
|
||||
- "/var/lib/rancher/k3s/agent/kubelet.kubeconfig"
|
||||
confs:
|
||||
- "/etc/kubernetes/kubelet-config.yaml"
|
||||
- "/var/lib/kubelet/config.yaml"
|
||||
@@ -177,6 +190,8 @@ node:
|
||||
- "/etc/systemd/system/snap.kubelet.daemon.service"
|
||||
- "/etc/systemd/system/snap.microk8s.daemon-kubelet.service"
|
||||
- "/etc/kubernetes/kubelet.yaml"
|
||||
- "/var/lib/rancher/rke2/agent/kubelet.kubeconfig"
|
||||
|
||||
defaultconf: "/var/lib/kubelet/config.yaml"
|
||||
defaultsvc: "/etc/systemd/system/kubelet.service.d/10-kubeadm.conf"
|
||||
defaultkubeconfig: "/etc/kubernetes/kubelet.conf"
|
||||
@@ -200,8 +215,11 @@ node:
|
||||
- "/etc/kubernetes/kubelet-kubeconfig"
|
||||
- "/etc/kubernetes/kubelet-kubeconfig.conf"
|
||||
- "/etc/kubernetes/kubelet/config"
|
||||
- "/etc/kubernetes/ssl/kubecfg-kube-proxy.yaml"
|
||||
- "/var/lib/kubelet/kubeconfig"
|
||||
- "/var/snap/microk8s/current/credentials/proxy.config"
|
||||
- "/var/lib/rancher/rke2/agent/kubeproxy.kubeconfig"
|
||||
- "/var/lib/rancher/k3s/agent/kubeproxy.kubeconfig"
|
||||
svc:
|
||||
- "/lib/systemd/system/kube-proxy.service"
|
||||
- "/etc/systemd/system/snap.microk8s.daemon-proxy.service"
|
||||
@@ -218,6 +236,7 @@ etcd:
|
||||
datadirs:
|
||||
- /var/lib/etcd/default.etcd
|
||||
- /var/lib/etcd/data.etcd
|
||||
- /var/lib/rancher/k3s/server/db/etcd
|
||||
confs:
|
||||
- /etc/kubernetes/manifests/etcd.yaml
|
||||
- /etc/kubernetes/manifests/etcd.yml
|
||||
@@ -227,6 +246,8 @@ etcd:
|
||||
- /var/snap/etcd/common/etcd.conf.yaml
|
||||
- /var/snap/microk8s/current/args/etcd
|
||||
- /usr/lib/systemd/system/etcd.service
|
||||
- /var/lib/rancher/rke2/agent/pod-manifests/etcd.yaml
|
||||
- /var/lib/rancher/k3s/server/db/etcd/config
|
||||
defaultconf: /etc/kubernetes/manifests/etcd.yaml
|
||||
defaultdatadir: /var/lib/etcd/default.etcd
|
||||
|
||||
@@ -259,6 +280,10 @@ version_mapping:
|
||||
"1.23": "cis-1.23"
|
||||
"1.24": "cis-1.24"
|
||||
"1.25": "cis-1.7"
|
||||
"1.26": "cis-1.8"
|
||||
"1.27": "cis-1.9"
|
||||
"1.28": "cis-1.9"
|
||||
"1.29": "cis-1.9"
|
||||
"eks-1.0.1": "eks-1.0.1"
|
||||
"eks-1.1.0": "eks-1.1.0"
|
||||
"eks-1.2.0": "eks-1.2.0"
|
||||
@@ -270,7 +295,17 @@ version_mapping:
|
||||
"aks-1.0": "aks-1.0"
|
||||
"ack-1.0": "ack-1.0"
|
||||
"cis-1.6-k3s": "cis-1.6-k3s"
|
||||
"cis-1.24-microk8s": "cis-1.24-microk8s"
|
||||
"tkgi-1.2.53": "tkgi-1.2.53"
|
||||
"k3s-cis-1.7": "k3s-cis-1.7"
|
||||
"k3s-cis-1.23": "k3s-cis-1.23"
|
||||
"k3s-cis-1.24": "k3s-cis-1.24"
|
||||
"rke-cis-1.7": "rke-cis-1.7"
|
||||
"rke-cis-1.23": "rke-cis-1.23"
|
||||
"rke-cis-1.24": "rke-cis-1.24"
|
||||
"rke2-cis-1.7": "rke2-cis-1.7"
|
||||
"rke2-cis-1.23": "rke2-cis-1.23"
|
||||
"rke2-cis-1.24": "rke2-cis-1.24"
|
||||
|
||||
target_mapping:
|
||||
"cis-1.5":
|
||||
@@ -309,12 +344,30 @@ target_mapping:
|
||||
- "controlplane"
|
||||
- "etcd"
|
||||
- "policies"
|
||||
"cis-1.24-microk8s":
|
||||
- "master"
|
||||
- "etcd"
|
||||
- "node"
|
||||
- "controlplane"
|
||||
- "policies"
|
||||
"cis-1.7":
|
||||
- "master"
|
||||
- "node"
|
||||
- "controlplane"
|
||||
- "etcd"
|
||||
- "policies"
|
||||
"cis-1.8":
|
||||
- "master"
|
||||
- "node"
|
||||
- "controlplane"
|
||||
- "etcd"
|
||||
- "policies"
|
||||
"cis-1.9":
|
||||
- "master"
|
||||
- "node"
|
||||
- "controlplane"
|
||||
- "etcd"
|
||||
- "policies"
|
||||
"gke-1.0":
|
||||
- "master"
|
||||
- "node"
|
||||
@@ -379,3 +432,57 @@ target_mapping:
|
||||
- "controlplane"
|
||||
- "node"
|
||||
- "policies"
|
||||
"k3s-cis-1.7":
|
||||
- "master"
|
||||
- "etcd"
|
||||
- "controlplane"
|
||||
- "node"
|
||||
- "policies"
|
||||
"k3s-cis-1.23":
|
||||
- "master"
|
||||
- "etcd"
|
||||
- "controlplane"
|
||||
- "node"
|
||||
- "policies"
|
||||
"k3s-cis-1.24":
|
||||
- "master"
|
||||
- "etcd"
|
||||
- "controlplane"
|
||||
- "node"
|
||||
- "policies"
|
||||
"rke-cis-1.7":
|
||||
- "master"
|
||||
- "etcd"
|
||||
- "controlplane"
|
||||
- "node"
|
||||
- "policies"
|
||||
"rke-cis-1.23":
|
||||
- "master"
|
||||
- "etcd"
|
||||
- "controlplane"
|
||||
- "node"
|
||||
- "policies"
|
||||
"rke-cis-1.24":
|
||||
- "master"
|
||||
- "etcd"
|
||||
- "controlplane"
|
||||
- "node"
|
||||
- "policies"
|
||||
"rke2-cis-1.7":
|
||||
- "master"
|
||||
- "etcd"
|
||||
- "controlplane"
|
||||
- "node"
|
||||
- "policies"
|
||||
"rke2-cis-1.23":
|
||||
- "master"
|
||||
- "etcd"
|
||||
- "controlplane"
|
||||
- "node"
|
||||
- "policies"
|
||||
"rke2-cis-1.24":
|
||||
- "master"
|
||||
- "etcd"
|
||||
- "controlplane"
|
||||
- "node"
|
||||
- "policies"
|
||||
|
||||
47
cfg/k3s-cis-1.23/config.yaml
Normal file
47
cfg/k3s-cis-1.23/config.yaml
Normal file
@@ -0,0 +1,47 @@
|
||||
---
|
||||
## Version-specific settings that override the values in cfg/config.yaml
|
||||
|
||||
master:
|
||||
components:
|
||||
- apiserver
|
||||
- scheduler
|
||||
- controllermanager
|
||||
- etcd
|
||||
- policies
|
||||
|
||||
apiserver:
|
||||
bins:
|
||||
- containerd
|
||||
|
||||
scheduler:
|
||||
bins:
|
||||
- containerd
|
||||
|
||||
controllermanager:
|
||||
bins:
|
||||
- containerd
|
||||
|
||||
etcd:
|
||||
bins:
|
||||
- containerd
|
||||
datadirs:
|
||||
- /var/lib/rancher/k3s/server/db/etcd
|
||||
node:
|
||||
components:
|
||||
- kubelet
|
||||
- proxy
|
||||
|
||||
kubelet:
|
||||
bins:
|
||||
- containerd
|
||||
defaultkubeconfig: /var/lib/rancher/k3s/agent/kubelet.kubeconfig
|
||||
defaultcafile: /var/lib/rancher/k3s/agent/client-ca.crt
|
||||
|
||||
proxy:
|
||||
bins:
|
||||
- containerd
|
||||
defaultkubeconfig: /var/lib/rancher/k3s/agent/kubeproxy.kubeconfig
|
||||
|
||||
policies:
|
||||
components:
|
||||
- policies
|
||||
47
cfg/k3s-cis-1.23/controlplane.yaml
Normal file
47
cfg/k3s-cis-1.23/controlplane.yaml
Normal file
@@ -0,0 +1,47 @@
|
||||
---
|
||||
controls:
|
||||
version: "k3s-cis-1.23"
|
||||
id: 3
|
||||
text: "Control Plane Configuration"
|
||||
type: "controlplane"
|
||||
groups:
|
||||
- id: 3.1
|
||||
text: "Authentication and Authorization"
|
||||
checks:
|
||||
- id: 3.1.1
|
||||
text: "Client certificate authentication should not be used for users (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Alternative mechanisms provided by Kubernetes such as the use of OIDC should be
|
||||
implemented in place of client certificates.
|
||||
scored: false
|
||||
|
||||
- id: 3.2
|
||||
text: "Logging"
|
||||
checks:
|
||||
- id: 3.2.1
|
||||
text: "Ensure that a minimal audit policy is created (Manual)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep 'audit-policy-file'"
|
||||
type: "manual"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--audit-policy-file"
|
||||
set: true
|
||||
remediation: |
|
||||
Create an audit policy file for your cluster.
|
||||
scored: false
|
||||
|
||||
- id: 3.2.2
|
||||
text: "Ensure that the audit policy covers key security concerns (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Review the audit policy provided for the cluster and ensure that it covers
|
||||
at least the following areas,
|
||||
- Access to Secrets managed by the cluster. Care should be taken to only
|
||||
log Metadata for requests to Secrets, ConfigMaps, and TokenReviews, in
|
||||
order to avoid risk of logging sensitive data.
|
||||
- Modification of Pod and Deployment objects.
|
||||
- Use of `pods/exec`, `pods/portforward`, `pods/proxy` and `services/proxy`.
|
||||
For most requests, minimally logging at the Metadata level is recommended
|
||||
(the most basic level of logging).
|
||||
scored: false
|
||||
137
cfg/k3s-cis-1.23/etcd.yaml
Normal file
137
cfg/k3s-cis-1.23/etcd.yaml
Normal file
@@ -0,0 +1,137 @@
|
||||
---
|
||||
controls:
|
||||
version: "k3s-cis-1.23"
|
||||
id: 2
|
||||
text: "Etcd Node Configuration"
|
||||
type: "etcd"
|
||||
groups:
|
||||
- id: 2
|
||||
text: "Etcd Node Configuration"
|
||||
checks:
|
||||
- id: 2.1
|
||||
text: "Ensure that the --cert-file and --key-file arguments are set as appropriate (Automated)"
|
||||
audit: "grep -A 4 'client-transport-security' $etcdconf | grep -E 'cert-file|key-file'"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "cert-file"
|
||||
set: true
|
||||
- flag: "key-file"
|
||||
set: true
|
||||
remediation: |
|
||||
Follow the etcd service documentation and configure TLS encryption.
|
||||
Then, edit the etcd pod specification file /etc/kubernetes/manifests/etcd.yaml
|
||||
on the master node and set the below parameters.
|
||||
--cert-file=</path/to/ca-file>
|
||||
--key-file=</path/to/key-file>
|
||||
scored: true
|
||||
|
||||
- id: 2.2
|
||||
text: "Ensure that the --client-cert-auth argument is set to true (Automated)"
|
||||
audit: "grep -A 4 'client-transport-security' $etcdconf | grep 'client-cert-auth'"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--client-cert-auth"
|
||||
set: true
|
||||
- flag: "client-cert-auth"
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
set: true
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and set the below parameter.
|
||||
--client-cert-auth="true"
|
||||
scored: true
|
||||
|
||||
- id: 2.3
|
||||
text: "Ensure that the --auto-tls argument is not set to true (Automated)"
|
||||
audit: "if grep -q '^auto-tls' $etcdconf;then grep '^auto-tls' $etcdconf;else echo 'notset';fi"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--auto-tls"
|
||||
set: false
|
||||
- flag: "--auto-tls"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and either remove the --auto-tls parameter or set it to false.
|
||||
--auto-tls=false
|
||||
scored: true
|
||||
|
||||
- id: 2.4
|
||||
text: "Ensure that the --peer-cert-file and --peer-key-file arguments are set as appropriate (Automated)"
|
||||
audit: "grep -A 4 'peer-transport-security' $etcdconf | grep -E 'cert-file|key-file'"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "cert-file"
|
||||
set: true
|
||||
- flag: "key-file"
|
||||
set: true
|
||||
remediation: |
|
||||
Follow the etcd service documentation and configure peer TLS encryption as appropriate
|
||||
for your etcd cluster.
|
||||
Then, edit the etcd pod specification file $etcdconf on the
|
||||
master node and set the below parameters.
|
||||
--peer-client-file=</path/to/peer-cert-file>
|
||||
--peer-key-file=</path/to/peer-key-file>
|
||||
scored: true
|
||||
|
||||
- id: 2.5
|
||||
text: "Ensure that the --peer-client-cert-auth argument is set to true (Automated)"
|
||||
audit: "grep -A 4 'peer-transport-security' $etcdconf | grep 'client-cert-auth'"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--client-cert-auth"
|
||||
set: true
|
||||
- flag: "client-cert-auth"
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
set: true
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and set the below parameter.
|
||||
--peer-client-cert-auth=true
|
||||
scored: true
|
||||
|
||||
- id: 2.6
|
||||
text: "Ensure that the --peer-auto-tls argument is not set to true (Automated)"
|
||||
audit: "if grep -q '^peer-auto-tls' $etcdconf;then grep '^peer-auto-tls' $etcdconf;else echo 'notset';fi"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--peer-auto-tls"
|
||||
set: false
|
||||
- flag: "--peer-auto-tls"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
set: true
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and either remove the --peer-auto-tls parameter or set it to false.
|
||||
--peer-auto-tls=false
|
||||
scored: true
|
||||
|
||||
- id: 2.7
|
||||
text: "Ensure that a unique Certificate Authority is used for etcd (Manual)"
|
||||
audit: "if grep -q 'trusted-ca-file' $etcdconf;then grep 'trusted-ca-file' $etcdconf;else echo 'notset';fi"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "trusted-ca-file"
|
||||
set: true
|
||||
remediation: |
|
||||
[Manual test]
|
||||
Follow the etcd documentation and create a dedicated certificate authority setup for the
|
||||
etcd service.
|
||||
Then, edit the etcd pod specification file $etcdconf on the
|
||||
master node and set the below parameter.
|
||||
--trusted-ca-file=</path/to/ca-file>
|
||||
scored: false
|
||||
986
cfg/k3s-cis-1.23/master.yaml
Normal file
986
cfg/k3s-cis-1.23/master.yaml
Normal file
@@ -0,0 +1,986 @@
|
||||
---
|
||||
controls:
|
||||
version: "k3s-cis-1.23"
|
||||
id: 1
|
||||
text: "Control Plane Security Configuration"
|
||||
type: "master"
|
||||
groups:
|
||||
- id: 1.1
|
||||
text: "Control Plane Node Configuration Files"
|
||||
checks:
|
||||
- id: 1.1.1
|
||||
text: "Ensure that the API server pod specification file permissions are set to 644 or more restrictive (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $apiserverconf; then stat -c permissions=%a $apiserverconf; fi'"
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "644"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the
|
||||
control plane node.
|
||||
For example, chmod 644 $apiserverconf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.2
|
||||
text: "Ensure that the API server pod specification file ownership is set to root:root (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $apiserverconf; then stat -c %U:%G $apiserverconf; fi'"
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chown root:root $apiserverconf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.3
|
||||
text: "Ensure that the controller manager pod specification file permissions are set to 644 or more restrictive (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $controllermanagerconf; then stat -c permissions=%a $controllermanagerconf; fi'"
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "644"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chmod 644 $controllermanagerconf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.4
|
||||
text: "Ensure that the controller manager pod specification file ownership is set to root:root (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $controllermanagerconf; then stat -c %U:%G $controllermanagerconf; fi'"
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chown root:root $controllermanagerconf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.5
|
||||
text: "Ensure that the scheduler pod specification file permissions are set to 644 or more restrictive (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $schedulerconf; then stat -c permissions=%a $schedulerconf; fi'"
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "644"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chmod 644 $schedulerconf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.6
|
||||
text: "Ensure that the scheduler pod specification file ownership is set to root:root (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $schedulerconf; then stat -c %U:%G $schedulerconf; fi'"
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chown root:root $schedulerconf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.7
|
||||
text: "Ensure that the etcd pod specification file permissions are set to 644 or more restrictive (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $etcdconf; then stat -c permissions=%a $etcdconf; fi'"
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "644"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chmod 644 $etcdconf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.8
|
||||
text: "Ensure that the etcd pod specification file ownership is set to root:root (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $etcdconf; then stat -c %U:%G $etcdconf; fi'"
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chown root:root $etcdconf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.9
|
||||
text: "Ensure that the Container Network Interface file permissions are set to 644 or more restrictive (Manual)"
|
||||
type: "skip"
|
||||
audit: |
|
||||
ps -ef | grep $kubeletbin | grep -- --cni-conf-dir | sed 's%.*cni-conf-dir[= ]\([^ ]*\).*%\1%' | xargs -I{} find {} -mindepth 1 | xargs --no-run-if-empty stat -c permissions=%a
|
||||
find /var/lib/cni/networks -type f 2> /dev/null | xargs --no-run-if-empty stat -c permissions=%a
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "644"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chmod 644 <path/to/cni/files>
|
||||
scored: false
|
||||
|
||||
- id: 1.1.10
|
||||
text: "Ensure that the Container Network Interface file ownership is set to root:root (Manual)"
|
||||
type: "skip"
|
||||
audit: |
|
||||
ps -ef | grep $kubeletbin | grep -- --cni-conf-dir | sed 's%.*cni-conf-dir[= ]\([^ ]*\).*%\1%' | xargs -I{} find {} -mindepth 1 | xargs --no-run-if-empty stat -c %U:%G
|
||||
find /var/lib/cni/networks -type f 2> /dev/null | xargs --no-run-if-empty stat -c %U:%G
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chown root:root <path/to/cni/files>
|
||||
scored: false
|
||||
|
||||
- id: 1.1.11
|
||||
text: "Ensure that the etcd data directory permissions are set to 700 or more restrictive (Automated)"
|
||||
audit: "stat -c %a $etcddatadir"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "700"
|
||||
compare:
|
||||
op: eq
|
||||
value: "700"
|
||||
set: true
|
||||
remediation: |
|
||||
On the etcd server node, get the etcd data directory, passed as an argument --data-dir,
|
||||
from the command 'ps -ef | grep etcd'.
|
||||
Run the below command (based on the etcd data directory found above). For example,
|
||||
chmod 700 /var/lib/etcd
|
||||
scored: true
|
||||
|
||||
- id: 1.1.12
|
||||
text: "Ensure that the etcd data directory ownership is set to etcd:etcd (Automated)"
|
||||
audit: ps -ef | grep $etcdbin | grep -- --data-dir | sed 's%.*data-dir[= ]\([^ ]*\).*%\1%' | xargs stat -c %U:%G
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "etcd:etcd"
|
||||
remediation: |
|
||||
On the etcd server node, get the etcd data directory, passed as an argument --data-dir,
|
||||
from the command 'ps -ef | grep etcd'.
|
||||
Run the below command (based on the etcd data directory found above).
|
||||
For example, chown etcd:etcd /var/lib/etcd
|
||||
scored: true
|
||||
|
||||
- id: 1.1.13
|
||||
text: "Ensure that the admin.conf file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e /var/lib/rancher/k3s/server/cred/admin.kubeconfig; then stat -c permissions=%a /var/lib/rancher/k3s/server/cred/admin.kubeconfig'"
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "600"
|
||||
compare:
|
||||
op: eq
|
||||
value: "600"
|
||||
set: true
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chmod 600 /var/lib/rancher/k3s/server/cred/admin.kubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 1.1.14
|
||||
text: "Ensure that the admin.conf file ownership is set to root:root (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e /var/lib/rancher/k3s/server/cred/admin.kubeconfig; then stat -c %U:%G /var/lib/rancher/k3s/server/cred/admin.kubeconfig; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
compare:
|
||||
op: eq
|
||||
value: "root:root"
|
||||
set: true
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chown root:root /etc/kubernetes/admin.conf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.15
|
||||
text: "Ensure that the scheduler.conf file permissions are set to 644 or more restrictive (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e /var/lib/rancher/k3s/server/cred/scheduler.kubeconfig; then stat -c permissions=%a /var/lib/rancher/k3s/server/cred/scheduler.kubeconfig; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "644"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chmod 644 $schedulerkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 1.1.16
|
||||
text: "Ensure that the scheduler.conf file ownership is set to root:root (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e /var/lib/rancher/k3s/server/cred/scheduler.kubeconfig; then stat -c %U:%G /var/lib/rancher/k3s/server/cred/scheduler.kubeconfig; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chown root:root $schedulerkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 1.1.17
|
||||
text: "Ensure that the controller-manager.conf file permissions are set to 644 or more restrictive (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e /var/lib/rancher/k3s/server/cred/controller.kubeconfig; then stat -c permissions=%a /var/lib/rancher/k3s/server/cred/controller.kubeconfig; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "644"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chmod 644 $controllermanagerkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 1.1.18
|
||||
text: "Ensure that the controller-manager.conf file ownership is set to root:root (Automated)"
|
||||
audit: "stat -c %U:%G /var/lib/rancher/k3s/server/tls"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
compare:
|
||||
op: eq
|
||||
value: "root:root"
|
||||
set: true
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chown root:root $controllermanagerkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 1.1.19
|
||||
text: "Ensure that the Kubernetes PKI directory and file ownership is set to root:root (Automated)"
|
||||
audit: "find /var/lib/rancher/k3s/server/tls | xargs stat -c %U:%G"
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chown -R root:root /etc/kubernetes/pki/
|
||||
scored: true
|
||||
|
||||
- id: 1.1.20
|
||||
text: "Ensure that the Kubernetes PKI certificate file permissions are set to 644 or more restrictive (Manual)"
|
||||
audit: "stat -c %n\ %a /var/lib/rancher/k3s/server/tls/*.crt"
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "644"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chmod -R 644 /etc/kubernetes/pki/*.crt
|
||||
scored: false
|
||||
|
||||
- id: 1.1.21
|
||||
text: "Ensure that the Kubernetes PKI key file permissions are set to 600 (Manual)"
|
||||
audit: "stat -c %n\ %a /var/lib/rancher/k3s/server/tls/*.key"
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chmod -R 600 /etc/kubernetes/pki/*.key
|
||||
scored: false
|
||||
|
||||
- id: 1.2
|
||||
text: "API Server"
|
||||
checks:
|
||||
- id: 1.2.1
|
||||
text: "Ensure that the --anonymous-auth argument is set to false (Manual)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep 'anonymous-auth'"
|
||||
type: manual
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--anonymous-auth"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the below parameter.
|
||||
--anonymous-auth=false
|
||||
scored: false
|
||||
|
||||
- id: 1.2.2
|
||||
text: "Ensure that the --token-auth-file parameter is not set (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--token-auth-file"
|
||||
set: false
|
||||
remediation: |
|
||||
Follow the documentation and configure alternate mechanisms for authentication. Then,
|
||||
edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and remove the --token-auth-file=<filename> parameter.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.3
|
||||
text: "Ensure that the --DenyServiceExternalIPs is not set (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--enable-admission-plugins"
|
||||
compare:
|
||||
op: nothave
|
||||
value: "DenyServiceExternalIPs"
|
||||
set: true
|
||||
- flag: "--enable-admission-plugins"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and remove the `DenyServiceExternalIPs`
|
||||
from enabled admission plugins.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.4
|
||||
text: "Ensure that the --kubelet-https argument is set to true (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep 'kubelet-https'"
|
||||
type: "skip"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--kubelet-https"
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
- flag: "--kubelet-https"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and remove the --kubelet-https parameter.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.5
|
||||
text: "Ensure that the --kubelet-client-certificate and --kubelet-client-key arguments are set as appropriate (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep 'kubelet-certificate-authority'"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "--kubelet-client-certificate"
|
||||
- flag: "--kubelet-client-key"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and set up the TLS connection between the
|
||||
apiserver and kubelets. Then, edit API server pod specification file
|
||||
$apiserverconf on the control plane node and set the
|
||||
kubelet client certificate and key parameters as below.
|
||||
--kubelet-client-certificate=<path/to/client-certificate-file>
|
||||
--kubelet-client-key=<path/to/client-key-file>
|
||||
scored: true
|
||||
|
||||
- id: 1.2.6
|
||||
text: "Ensure that the --kubelet-certificate-authority argument is set as appropriate (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep 'kubelet-certificate-authority'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--kubelet-certificate-authority"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and setup the TLS connection between
|
||||
the apiserver and kubelets. Then, edit the API server pod specification file
|
||||
$apiserverconf on the control plane node and set the
|
||||
--kubelet-certificate-authority parameter to the path to the cert file for the certificate authority.
|
||||
--kubelet-certificate-authority=<ca-string>
|
||||
scored: true
|
||||
|
||||
- id: 1.2.7
|
||||
text: "Ensure that the --authorization-mode argument is not set to AlwaysAllow (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep 'authorization-mode'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--authorization-mode"
|
||||
compare:
|
||||
op: nothave
|
||||
value: "AlwaysAllow"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --authorization-mode parameter to values other than AlwaysAllow.
|
||||
One such example could be as below.
|
||||
--authorization-mode=RBAC
|
||||
scored: true
|
||||
|
||||
- id: 1.2.8
|
||||
text: "Ensure that the --authorization-mode argument includes Node (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep 'authorization-mode'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--authorization-mode"
|
||||
compare:
|
||||
op: has
|
||||
value: "Node"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --authorization-mode parameter to a value that includes Node.
|
||||
--authorization-mode=Node,RBAC
|
||||
scored: true
|
||||
|
||||
- id: 1.2.9
|
||||
text: "Ensure that the --authorization-mode argument includes RBAC (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep 'authorization-mode'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--authorization-mode"
|
||||
compare:
|
||||
op: has
|
||||
value: "RBAC"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --authorization-mode parameter to a value that includes RBAC,
|
||||
for example `--authorization-mode=Node,RBAC`.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.10
|
||||
text: "Ensure that the admission control plugin EventRateLimit is set (Manual)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep 'enable-admission-plugins'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--enable-admission-plugins"
|
||||
compare:
|
||||
op: has
|
||||
value: "EventRateLimit"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and set the desired limits in a configuration file.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
and set the below parameters.
|
||||
--enable-admission-plugins=...,EventRateLimit,...
|
||||
--admission-control-config-file=<path/to/configuration/file>
|
||||
scored: false
|
||||
|
||||
- id: 1.2.11
|
||||
text: "Ensure that the admission control plugin AlwaysAdmit is not set (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep 'enable-admission-plugins'"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--enable-admission-plugins"
|
||||
compare:
|
||||
op: nothave
|
||||
value: AlwaysAdmit
|
||||
- flag: "--enable-admission-plugins"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and either remove the --enable-admission-plugins parameter, or set it to a
|
||||
value that does not include AlwaysAdmit.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.12
|
||||
text: "Ensure that the admission control plugin AlwaysPullImages is set (Manual)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--enable-admission-plugins"
|
||||
compare:
|
||||
op: has
|
||||
value: "AlwaysPullImages"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --enable-admission-plugins parameter to include
|
||||
AlwaysPullImages.
|
||||
--enable-admission-plugins=...,AlwaysPullImages,...
|
||||
scored: false
|
||||
|
||||
- id: 1.2.13
|
||||
text: "Ensure that the admission control plugin SecurityContextDeny is set if PodSecurityPolicy is not used (Manual)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep 'enable-admission-plugins'"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--enable-admission-plugins"
|
||||
compare:
|
||||
op: has
|
||||
value: "SecurityContextDeny"
|
||||
- flag: "--enable-admission-plugins"
|
||||
compare:
|
||||
op: has
|
||||
value: "PodSecurityPolicy"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --enable-admission-plugins parameter to include
|
||||
SecurityContextDeny, unless PodSecurityPolicy is already in place.
|
||||
--enable-admission-plugins=...,SecurityContextDeny,...
|
||||
scored: false
|
||||
|
||||
- id: 1.2.14
|
||||
text: "Ensure that the admission control plugin ServiceAccount is set (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--disable-admission-plugins"
|
||||
compare:
|
||||
op: nothave
|
||||
value: "ServiceAccount"
|
||||
- flag: "--disable-admission-plugins"
|
||||
set: false
|
||||
remediation: |
|
||||
Follow the documentation and create ServiceAccount objects as per your environment.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and ensure that the --disable-admission-plugins parameter is set to a
|
||||
value that does not include ServiceAccount.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.15
|
||||
text: "Ensure that the admission control plugin NamespaceLifecycle is set (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--disable-admission-plugins"
|
||||
compare:
|
||||
op: nothave
|
||||
value: "NamespaceLifecycle"
|
||||
- flag: "--disable-admission-plugins"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --disable-admission-plugins parameter to
|
||||
ensure it does not include NamespaceLifecycle.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.16
|
||||
text: "Ensure that the admission control plugin NodeRestriction is set (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep 'enable-admission-plugins'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--enable-admission-plugins"
|
||||
compare:
|
||||
op: has
|
||||
value: "NodeRestriction"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and configure NodeRestriction plug-in on kubelets.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --enable-admission-plugins parameter to a
|
||||
value that includes NodeRestriction.
|
||||
--enable-admission-plugins=...,NodeRestriction,...
|
||||
scored: true
|
||||
|
||||
- id: 1.2.17
|
||||
text: "Ensure that the --secure-port argument is not set to 0 (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep 'secure-port'"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--secure-port"
|
||||
compare:
|
||||
op: gt
|
||||
value: 0
|
||||
- flag: "--secure-port"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and either remove the --secure-port parameter or
|
||||
set it to a different (non-zero) desired port.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.18
|
||||
text: "Ensure that the --profiling argument is set to false (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep 'profiling'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--profiling"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the below parameter.
|
||||
--profiling=false
|
||||
scored: true
|
||||
|
||||
- id: 1.2.19
|
||||
text: "Ensure that the --audit-log-path argument is set (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep -v grep"
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--audit-log-path"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --audit-log-path parameter to a suitable path and
|
||||
file where you would like audit logs to be written, for example,
|
||||
--audit-log-path=/var/log/apiserver/audit.log
|
||||
scored: true
|
||||
|
||||
- id: 1.2.20
|
||||
text: "Ensure that the --audit-log-maxage argument is set to 30 or as appropriate (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep -v grep"
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--audit-log-maxage"
|
||||
compare:
|
||||
op: gte
|
||||
value: 30
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --audit-log-maxage parameter to 30
|
||||
or as an appropriate number of days, for example,
|
||||
--audit-log-maxage=30
|
||||
scored: true
|
||||
|
||||
- id: 1.2.21
|
||||
text: "Ensure that the --audit-log-maxbackup argument is set to 10 or as appropriate (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep -v grep"
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--audit-log-maxbackup"
|
||||
compare:
|
||||
op: gte
|
||||
value: 10
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --audit-log-maxbackup parameter to 10 or to an appropriate
|
||||
value. For example,
|
||||
--audit-log-maxbackup=10
|
||||
scored: true
|
||||
|
||||
- id: 1.2.22
|
||||
text: "Ensure that the --audit-log-maxsize argument is set to 100 or as appropriate (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep -v grep"
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--audit-log-maxsize"
|
||||
compare:
|
||||
op: gte
|
||||
value: 100
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --audit-log-maxsize parameter to an appropriate size in MB.
|
||||
For example, to set it as 100 MB, --audit-log-maxsize=100
|
||||
scored: true
|
||||
|
||||
- id: 1.2.23
|
||||
text: "Ensure that the --request-timeout argument is set as appropriate (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep -v grep"
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--request-timeout"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
and set the below parameter as appropriate and if needed.
|
||||
For example, --request-timeout=300s
|
||||
scored: true
|
||||
|
||||
- id: 1.2.24
|
||||
text: "Ensure that the --service-account-lookup argument is set to true (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--service-account-lookup"
|
||||
set: false
|
||||
- flag: "--service-account-lookup"
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the below parameter.
|
||||
--service-account-lookup=true
|
||||
Alternatively, you can delete the --service-account-lookup parameter from this file so
|
||||
that the default takes effect.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.25
|
||||
text: "Ensure that the --service-account-key-file argument is set as appropriate (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep -v grep"
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--service-account-key-file"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --service-account-key-file parameter
|
||||
to the public key file for service accounts. For example,
|
||||
--service-account-key-file=<filename>
|
||||
scored: true
|
||||
|
||||
- id: 1.2.26
|
||||
text: "Ensure that the --etcd-certfile and --etcd-keyfile arguments are set as appropriate (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep -m1 'Running kube-apiserver'"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "--etcd-certfile"
|
||||
set: true
|
||||
- flag: "--etcd-keyfile"
|
||||
set: true
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and set up the TLS connection between the apiserver and etcd.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the etcd certificate and key file parameters.
|
||||
--etcd-certfile=<path/to/client-certificate-file>
|
||||
--etcd-keyfile=<path/to/client-key-file>
|
||||
scored: true
|
||||
|
||||
- id: 1.2.27
|
||||
text: "Ensure that the --tls-cert-file and --tls-private-key-file arguments are set as appropriate (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep -A1 'Running kube-apiserver' | tail -n2"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "--tls-cert-file"
|
||||
set: true
|
||||
- flag: "--tls-private-key-file"
|
||||
set: true
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and set up the TLS connection on the apiserver.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the TLS certificate and private key file parameters.
|
||||
--tls-cert-file=<path/to/tls-certificate-file>
|
||||
--tls-private-key-file=<path/to/tls-key-file>
|
||||
scored: true
|
||||
|
||||
- id: 1.2.28
|
||||
text: "Ensure that the --client-ca-file argument is set as appropriate (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep 'client-ca-file'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--client-ca-file"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and set up the TLS connection on the apiserver.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the client certificate authority file.
|
||||
--client-ca-file=<path/to/client-ca-file>
|
||||
scored: true
|
||||
|
||||
- id: 1.2.29
|
||||
text: "Ensure that the --etcd-cafile argument is set as appropriate (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep 'etcd-cafile'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--etcd-cafile"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and set up the TLS connection between the apiserver and etcd.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the etcd certificate authority file parameter.
|
||||
--etcd-cafile=<path/to/ca-file>
|
||||
scored: true
|
||||
|
||||
- id: 1.2.30
|
||||
text: "Ensure that the --encryption-provider-config argument is set as appropriate (Manual)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep 'encryption-provider-config'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--encryption-provider-config"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and configure a EncryptionConfig file.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --encryption-provider-config parameter to the path of that file.
|
||||
For example, --encryption-provider-config=</path/to/EncryptionConfig/File>
|
||||
scored: false
|
||||
|
||||
- id: 1.2.31
|
||||
text: "Ensure that encryption providers are appropriately configured (Manual)"
|
||||
audit: "grep aescbc /path/to/encryption-config.json"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and configure a EncryptionConfig file.
|
||||
In this file, choose aescbc, kms or secretbox as the encryption provider.
|
||||
scored: false
|
||||
|
||||
- id: 1.2.32
|
||||
text: "Ensure that the API Server only makes use of Strong Cryptographic Ciphers (Manual)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep 'tls-cipher-suites'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--tls-cipher-suites"
|
||||
compare:
|
||||
op: valid_elements
|
||||
value: "TLS_AES_128_GCM_SHA256,TLS_AES_256_GCM_SHA384,TLS_CHACHA20_POLY1305_SHA256,TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256,TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256,TLS_RSA_WITH_3DES_EDE_CBC_SHA,TLS_RSA_WITH_AES_128_CBC_SHA,TLS_RSA_WITH_AES_128_GCM_SHA256,TLS_RSA_WITH_AES_256_CBC_SHA,TLS_RSA_WITH_AES_256_GCM_SHA384"
|
||||
remediation: |
|
||||
Edit the API server pod specification file /etc/kubernetes/manifests/kube-apiserver.yaml
|
||||
on the control plane node and set the below parameter.
|
||||
--tls-cipher-suites=TLS_AES_128_GCM_SHA256,TLS_AES_256_GCM_SHA384,TLS_CHACHA20_POLY1305_SHA256,
|
||||
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
|
||||
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
|
||||
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256,
|
||||
TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
|
||||
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,
|
||||
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256,TLS_RSA_WITH_3DES_EDE_CBC_SHA,TLS_RSA_WITH_AES_128_CBC_SHA,
|
||||
TLS_RSA_WITH_AES_128_GCM_SHA256,TLS_RSA_WITH_AES_256_CBC_SHA,TLS_RSA_WITH_AES_256_GCM_SHA384
|
||||
scored: false
|
||||
|
||||
- id: 1.3
|
||||
text: "Controller Manager"
|
||||
checks:
|
||||
- id: 1.3.1
|
||||
text: "Ensure that the --terminated-pod-gc-threshold argument is set as appropriate (Manual)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-controller-manager' | tail -n1 | grep 'terminated-pod-gc-threshold'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--terminated-pod-gc-threshold"
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node and set the --terminated-pod-gc-threshold to an appropriate threshold,
|
||||
for example, --terminated-pod-gc-threshold=10
|
||||
scored: false
|
||||
|
||||
- id: 1.3.2
|
||||
text: "Ensure that the --profiling argument is set to false (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-controller-manager' | tail -n1 | grep 'profiling'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--profiling"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node and set the below parameter.
|
||||
--profiling=false
|
||||
scored: true
|
||||
|
||||
- id: 1.3.3
|
||||
text: "Ensure that the --use-service-account-credentials argument is set to true (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-controller-manager' | tail -n1 | grep 'use-service-account-credentials'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--use-service-account-credentials"
|
||||
compare:
|
||||
op: noteq
|
||||
value: false
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node to set the below parameter.
|
||||
--use-service-account-credentials=true
|
||||
scored: true
|
||||
|
||||
- id: 1.3.4
|
||||
text: "Ensure that the --service-account-private-key-file argument is set as appropriate (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-controller-manager' | tail -n1 | grep 'service-account-private-key-file'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--service-account-private-key-file"
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node and set the --service-account-private-key-file parameter
|
||||
to the private key file for service accounts.
|
||||
--service-account-private-key-file=<filename>
|
||||
scored: true
|
||||
|
||||
- id: 1.3.5
|
||||
text: "Ensure that the --root-ca-file argument is set as appropriate (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-controller-manager' | tail -n1 | grep 'root-ca-file'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--root-ca-file"
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node and set the --root-ca-file parameter to the certificate bundle file`.
|
||||
--root-ca-file=<path/to/file>
|
||||
scored: true
|
||||
|
||||
- id: 1.3.6
|
||||
text: "Ensure that the RotateKubeletServerCertificate argument is set to true (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-controller-manager' | tail -n1 | grep 'RotateKubeletServerCertificate'"
|
||||
type: "skip"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--feature-gates"
|
||||
compare:
|
||||
op: nothave
|
||||
value: "RotateKubeletServerCertificate=false"
|
||||
set: true
|
||||
- flag: "--feature-gates"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node and set the --feature-gates parameter to include RotateKubeletServerCertificate=true.
|
||||
--feature-gates=RotateKubeletServerCertificate=true
|
||||
scored: true
|
||||
|
||||
- id: 1.3.7
|
||||
text: "Ensure that the --bind-address argument is set to 127.0.0.1 (Automated)"
|
||||
audit: "/bin/ps -ef | grep $controllermanagerbin | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--bind-address"
|
||||
compare:
|
||||
op: eq
|
||||
value: "127.0.0.1"
|
||||
set: true
|
||||
- flag: "--bind-address"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node and ensure the correct value for the --bind-address parameter
|
||||
scored: true
|
||||
|
||||
- id: 1.4
|
||||
text: "Scheduler"
|
||||
checks:
|
||||
- id: 1.4.1
|
||||
text: "Ensure that the --profiling argument is set to false (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-scheduler' | tail -n1"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--profiling"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
set: true
|
||||
remediation: |
|
||||
Edit the Scheduler pod specification file $schedulerconf file
|
||||
on the control plane node and set the below parameter.
|
||||
--profiling=false
|
||||
scored: true
|
||||
|
||||
- id: 1.4.2
|
||||
text: "Ensure that the --bind-address argument is set to 127.0.0.1 (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-scheduler' | tail -n1 | grep 'bind-address'"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--bind-address"
|
||||
compare:
|
||||
op: eq
|
||||
value: "127.0.0.1"
|
||||
set: true
|
||||
- flag: "--bind-address"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the Scheduler pod specification file $schedulerconf
|
||||
on the control plane node and ensure the correct value for the --bind-address parameter
|
||||
scored: true
|
||||
490
cfg/k3s-cis-1.23/node.yaml
Normal file
490
cfg/k3s-cis-1.23/node.yaml
Normal file
@@ -0,0 +1,490 @@
|
||||
---
|
||||
controls:
|
||||
version: "k3s-cis-1.23"
|
||||
id: 4
|
||||
text: "Worker Node Security Configuration"
|
||||
type: "node"
|
||||
groups:
|
||||
- id: 4.1
|
||||
text: "Worker Node Configuration Files"
|
||||
checks:
|
||||
- id: 4.1.1
|
||||
text: "Ensure that the kubelet service file permissions are set to 644 or more restrictive (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletsvc; then stat -c permissions=%a $kubeletsvc; fi'' '
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "644"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example, chmod 644 $kubeletsvc
|
||||
scored: true
|
||||
|
||||
- id: 4.1.2
|
||||
text: "Ensure that the kubelet service file ownership is set to root:root (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletsvc; then stat -c %U:%G $kubeletsvc; fi'' '
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chown root:root $kubeletsvc
|
||||
scored: true
|
||||
|
||||
- id: 4.1.3
|
||||
text: "If proxy kubeconfig file exists ensure permissions are set to 644 or more restrictive (Manual)"
|
||||
audit: 'stat -c %a /var/lib/rancher/k3s/agent/kubeproxy.kubeconfig'
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
set: true
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "644"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chmod 644 $proxykubeconfig
|
||||
scored: false
|
||||
|
||||
- id: 4.1.4
|
||||
text: "If proxy kubeconfig file exists ensure ownership is set to root:root (Manual)"
|
||||
audit: '/bin/sh -c ''if test -e /var/lib/rancher/k3s/agent/kubeproxy.kubeconfig; then stat -c %U:%G /var/lib/rancher/k3s/agent/kubeproxy.kubeconfig; fi'' '
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example, chown root:root $proxykubeconfig
|
||||
scored: false
|
||||
|
||||
- id: 4.1.5
|
||||
text: "Ensure that the --kubeconfig kubelet.conf file permissions are set to 644 or more restrictive (Automated)"
|
||||
audit: 'stat -c %a /var/lib/rancher/k3s/agent/kubelet.kubeconfig '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "644"
|
||||
compare:
|
||||
op: eq
|
||||
value: "644"
|
||||
set: true
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chmod 644 $kubeletkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 4.1.6
|
||||
text: "Ensure that the --kubeconfig kubelet.conf file ownership is set to root:root (Automated)"
|
||||
audit: 'stat -c %U:%G /var/lib/rancher/k3s/agent/kubelet.kubeconfig'
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
compare:
|
||||
op: eq
|
||||
value: "root:root"
|
||||
set: true
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chown root:root $kubeletkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 4.1.7
|
||||
text: "Ensure that the certificate authorities file permissions are set to 644 or more restrictive (Manual)"
|
||||
audit: "stat -c %a /var/lib/rancher/k3s/server/tls/server-ca.crt"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "644"
|
||||
compare:
|
||||
op: eq
|
||||
value: "644"
|
||||
set: true
|
||||
- flag: "640"
|
||||
compare:
|
||||
op: eq
|
||||
value: "640"
|
||||
set: true
|
||||
- flag: "600"
|
||||
compare:
|
||||
op: eq
|
||||
value: "600"
|
||||
set: true
|
||||
- flag: "444"
|
||||
compare:
|
||||
op: eq
|
||||
value: "444"
|
||||
set: true
|
||||
- flag: "440"
|
||||
compare:
|
||||
op: eq
|
||||
value: "440"
|
||||
set: true
|
||||
- flag: "400"
|
||||
compare:
|
||||
op: eq
|
||||
value: "400"
|
||||
set: true
|
||||
- flag: "000"
|
||||
compare:
|
||||
op: eq
|
||||
value: "000"
|
||||
set: true
|
||||
bin_op: or
|
||||
remediation: |
|
||||
Run the following command to modify the file permissions of the
|
||||
--client-ca-file chmod 644 <filename>
|
||||
scored: true
|
||||
|
||||
- id: 4.1.8
|
||||
text: "Ensure that the client certificate authorities file ownership is set to root:root (Manual)"
|
||||
audit: "stat -c %U:%G /var/lib/rancher/k3s/server/tls/client-ca.crt"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Run the following command to modify the ownership of the --client-ca-file.
|
||||
chown root:root <filename>
|
||||
scored: false
|
||||
|
||||
- id: 4.1.9
|
||||
text: "Ensure that the kubelet --config configuration file has permissions set to 644 or more restrictive (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletconf; then stat -c permissions=%a $kubeletconf; fi'' '
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "644"
|
||||
remediation: |
|
||||
Run the following command (using the config file location identified in the Audit step)
|
||||
chmod 644 $kubeletconf
|
||||
scored: true
|
||||
|
||||
- id: 4.1.10
|
||||
text: "Ensure that the kubelet --config configuration file ownership is set to root:root (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletconf; then stat -c %U:%G $kubeletconf; fi'' '
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Run the following command (using the config file location identified in the Audit step)
|
||||
chown root:root $kubeletconf
|
||||
scored: true
|
||||
|
||||
- id: 4.2
|
||||
text: "Kubelet"
|
||||
checks:
|
||||
- id: 4.2.1
|
||||
text: "Ensure that the --anonymous-auth argument is set to false (Automated)"
|
||||
audit: '/bin/sh -c ''if test $(journalctl -D /var/log/journal -u k3s | grep "Running kube-apiserver" | wc -l) -gt 0; then journalctl -D /var/log/journal -u k3s | grep "Running kube-apiserver" | tail -n1 | grep "anonymous-auth" | grep -v grep; else echo "--anonymous-auth=false"; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--anonymous-auth"
|
||||
path: '{.authentication.anonymous.enabled}'
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
set: true
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `authentication: anonymous: enabled` to
|
||||
`false`.
|
||||
If using executable arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
`--anonymous-auth=false`
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.2
|
||||
text: "Ensure that the --authorization-mode argument is not set to AlwaysAllow (Automated)"
|
||||
audit: '/bin/sh -c ''if test $(journalctl -D /var/log/journal -u k3s | grep "Running kube-apiserver" | wc -l) -gt 0; then journalctl -D /var/log/journal -u k3s | grep "Running kube-apiserver" | tail -n1 | grep "authorization-mode" | grep -v grep; else echo "--authorization-mode=Webhook"; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --authorization-mode
|
||||
path: '{.authorization.mode}'
|
||||
compare:
|
||||
op: nothave
|
||||
value: AlwaysAllow
|
||||
set: true
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `authorization.mode` to Webhook. If
|
||||
using executable arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_AUTHZ_ARGS variable.
|
||||
--authorization-mode=Webhook
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.3
|
||||
text: "Ensure that the --client-ca-file argument is set as appropriate (Automated)"
|
||||
audit: '/bin/sh -c ''if test $(journalctl -D /var/log/journal -u k3s | grep "Running kube-apiserver" | wc -l) -gt 0; then journalctl -D /var/log/journal -u k3s | grep "Running kube-apiserver" | tail -n1 | grep "client-ca-file" | grep -v grep; else echo "--client-ca-file=/var/lib/rancher/k3s/server/tls/request-header-ca.crt"; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --client-ca-file
|
||||
path: '{.authentication.x509.clientCAFile}'
|
||||
set: true
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `authentication.x509.clientCAFile` to
|
||||
the location of the client CA file.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_AUTHZ_ARGS variable.
|
||||
--client-ca-file=<path/to/client-ca-file>
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.4
|
||||
text: "Ensure that the --read-only-port argument is set to 0 (Manual)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kubelet' | tail -n1 | grep 'read-only-port' "
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--read-only-port"
|
||||
path: '{.readOnlyPort}'
|
||||
compare:
|
||||
op: eq
|
||||
value: 0
|
||||
- flag: "--read-only-port"
|
||||
path: '{.readOnlyPort}'
|
||||
set: false
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `readOnlyPort` to 0.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
--read-only-port=0
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.5
|
||||
text: "Ensure that the --streaming-connection-idle-timeout argument is not set to 0 (Manual)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kubelet' | tail -n1 | grep 'streaming-connection-idle-timeout'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --streaming-connection-idle-timeout
|
||||
path: '{.streamingConnectionIdleTimeout}'
|
||||
compare:
|
||||
op: noteq
|
||||
value: 0
|
||||
- flag: --streaming-connection-idle-timeout
|
||||
path: '{.streamingConnectionIdleTimeout}'
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `streamingConnectionIdleTimeout` to a
|
||||
value other than 0.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
--streaming-connection-idle-timeout=5m
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.6
|
||||
text: "Ensure that the --protect-kernel-defaults argument is set to true (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kubelet' | tail -n1 | grep 'protect-kernel-defaults'"
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --protect-kernel-defaults
|
||||
path: '{.protectKernelDefaults}'
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
set: true
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `protectKernelDefaults` to `true`.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
--protect-kernel-defaults=true
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.7
|
||||
text: "Ensure that the --make-iptables-util-chains argument is set to true (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kubelet' | tail -n1 | grep 'make-iptables-util-chains'"
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --make-iptables-util-chains
|
||||
path: '{.makeIPTablesUtilChains}'
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
set: true
|
||||
- flag: --make-iptables-util-chains
|
||||
path: '{.makeIPTablesUtilChains}'
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `makeIPTablesUtilChains` to `true`.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
remove the --make-iptables-util-chains argument from the
|
||||
KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.8
|
||||
text: "Ensure that the --hostname-override argument is not set (Manual)"
|
||||
# This is one of those properties that can only be set as a command line argument.
|
||||
# To check if the property is set as expected, we need to parse the kubelet command
|
||||
# instead reading the Kubelet Configuration file.
|
||||
audit: "/bin/ps -fC $kubeletbin "
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --hostname-override
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the kubelet service file $kubeletsvc
|
||||
on each worker node and remove the --hostname-override argument from the
|
||||
KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.9
|
||||
text: "Ensure that the --event-qps argument is set to 0 or a level which ensures appropriate event capture (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
type: "manual"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --event-qps
|
||||
path: '{.eventRecordQPS}'
|
||||
compare:
|
||||
op: eq
|
||||
value: 0
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `eventRecordQPS` to an appropriate level.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.10
|
||||
text: "Ensure that the --tls-cert-file and --tls-private-key-file arguments are set as appropriate (Manual)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kubelet' | tail -n1"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --tls-cert-file
|
||||
path: '/var/lib/rancher/k3s/agent/serving-kubelet.crt'
|
||||
- flag: --tls-private-key-file
|
||||
path: '/var/lib/rancher/k3s/agent/serving-kubelet.key'
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `tlsCertFile` to the location
|
||||
of the certificate file to use to identify this Kubelet, and `tlsPrivateKeyFile`
|
||||
to the location of the corresponding private key file.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameters in KUBELET_CERTIFICATE_ARGS variable.
|
||||
--tls-cert-file=<path/to/tls-certificate-file>
|
||||
--tls-private-key-file=<path/to/tls-key-file>
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.11
|
||||
text: "Ensure that the --rotate-certificates argument is not set to false (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --rotate-certificates
|
||||
path: '{.rotateCertificates}'
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
- flag: --rotate-certificates
|
||||
path: '{.rotateCertificates}'
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to add the line `rotateCertificates` to `true` or
|
||||
remove it altogether to use the default value.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
remove --rotate-certificates=false argument from the KUBELET_CERTIFICATE_ARGS
|
||||
variable.
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.12
|
||||
text: "Verify that the RotateKubeletServerCertificate argument is set to true (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
type: "skip"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: RotateKubeletServerCertificate
|
||||
path: '{.featureGates.RotateKubeletServerCertificate}'
|
||||
compare:
|
||||
op: nothave
|
||||
value: false
|
||||
- flag: RotateKubeletServerCertificate
|
||||
path: '{.featureGates.RotateKubeletServerCertificate}'
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the kubelet service file $kubeletsvc
|
||||
on each worker node and set the below parameter in KUBELET_CERTIFICATE_ARGS variable.
|
||||
--feature-gates=RotateKubeletServerCertificate=true
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.13
|
||||
text: "Ensure that the Kubelet only makes use of Strong Cryptographic Ciphers (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
type: "manual"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --tls-cipher-suites
|
||||
path: '{range .tlsCipherSuites[:]}{}{'',''}{end}'
|
||||
compare:
|
||||
op: valid_elements
|
||||
value: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `TLSCipherSuites` to
|
||||
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
|
||||
or to a subset of these values.
|
||||
If using executable arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the --tls-cipher-suites parameter as follows, or to a subset of these values.
|
||||
--tls-cipher-suites=TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
269
cfg/k3s-cis-1.23/policies.yaml
Normal file
269
cfg/k3s-cis-1.23/policies.yaml
Normal file
@@ -0,0 +1,269 @@
|
||||
---
|
||||
controls:
|
||||
version: "k3s-cis-1.23"
|
||||
id: 5
|
||||
text: "Kubernetes Policies"
|
||||
type: "policies"
|
||||
groups:
|
||||
- id: 5.1
|
||||
text: "RBAC and Service Accounts"
|
||||
checks:
|
||||
- id: 5.1.1
|
||||
text: "Ensure that the cluster-admin role is only used where required (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Identify all clusterrolebindings to the cluster-admin role. Check if they are used and
|
||||
if they need this role or if they could use a role with fewer privileges.
|
||||
Where possible, first bind users to a lower privileged role and then remove the
|
||||
clusterrolebinding to the cluster-admin role :
|
||||
kubectl delete clusterrolebinding [name]
|
||||
scored: false
|
||||
|
||||
- id: 5.1.2
|
||||
text: "Minimize access to secrets (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove get, list and watch access to Secret objects in the cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.3
|
||||
text: "Minimize wildcard use in Roles and ClusterRoles (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible replace any use of wildcards in clusterroles and roles with specific
|
||||
objects or actions.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.4
|
||||
text: "Minimize access to create pods (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove create access to pod objects in the cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.5
|
||||
text: "Ensure that default service accounts are not actively used. (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Create explicit service accounts wherever a Kubernetes workload requires specific access
|
||||
to the Kubernetes API server.
|
||||
Modify the configuration of each default service account to include this value
|
||||
automountServiceAccountToken: false
|
||||
scored: false
|
||||
|
||||
- id: 5.1.6
|
||||
text: "Ensure that Service Account Tokens are only mounted where necessary (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Modify the definition of pods and service accounts which do not need to mount service
|
||||
account tokens to disable it.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.7
|
||||
text: "Avoid use of system:masters group (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Remove the system:masters group from all users in the cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.8
|
||||
text: "Limit use of the Bind, Impersonate and Escalate permissions in the Kubernetes cluster (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove the impersonate, bind and escalate rights from subjects.
|
||||
scored: false
|
||||
|
||||
- id: 5.2
|
||||
text: "Pod Security Standards"
|
||||
checks:
|
||||
- id: 5.2.1
|
||||
text: "Ensure that the cluster has at least one active policy control mechanism in place (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Ensure that either Pod Security Admission or an external policy control system is in place
|
||||
for every namespace which contains user workloads.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.2
|
||||
text: "Minimize the admission of privileged containers (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of privileged containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.3
|
||||
text: "Minimize the admission of containers wishing to share the host process ID namespace (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of `hostPID` containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.4
|
||||
text: "Minimize the admission of containers wishing to share the host IPC namespace (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of `hostIPC` containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.5
|
||||
text: "Minimize the admission of containers wishing to share the host network namespace (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of `hostNetwork` containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.6
|
||||
text: "Minimize the admission of containers with allowPrivilegeEscalation (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers with `.spec.allowPrivilegeEscalation` set to `true`.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.7
|
||||
text: "Minimize the admission of root containers (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Create a policy for each namespace in the cluster, ensuring that either `MustRunAsNonRoot`
|
||||
or `MustRunAs` with the range of UIDs not including 0, is set.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.8
|
||||
text: "Minimize the admission of containers with the NET_RAW capability (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers with the `NET_RAW` capability.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.9
|
||||
text: "Minimize the admission of containers with added capabilities (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Ensure that `allowedCapabilities` is not present in policies for the cluster unless
|
||||
it is set to an empty array.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.10
|
||||
text: "Minimize the admission of containers with capabilities assigned (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Review the use of capabilites in applications running on your cluster. Where a namespace
|
||||
contains applicaions which do not require any Linux capabities to operate consider adding
|
||||
a PSP which forbids the admission of containers which do not drop all capabilities.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.11
|
||||
text: "Minimize the admission of Windows HostProcess containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers that have `.securityContext.windowsOptions.hostProcess` set to `true`.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.12
|
||||
text: "Minimize the admission of HostPath volumes (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers with `hostPath` volumes.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.13
|
||||
text: "Minimize the admission of containers which use HostPorts (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers which use `hostPort` sections.
|
||||
scored: false
|
||||
|
||||
- id: 5.3
|
||||
text: "Network Policies and CNI"
|
||||
checks:
|
||||
- id: 5.3.1
|
||||
text: "Ensure that the CNI in use supports NetworkPolicies (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
If the CNI plugin in use does not support network policies, consideration should be given to
|
||||
making use of a different plugin, or finding an alternate mechanism for restricting traffic
|
||||
in the Kubernetes cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.3.2
|
||||
text: "Ensure that all Namespaces have NetworkPolicies defined (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the documentation and create NetworkPolicy objects as you need them.
|
||||
scored: false
|
||||
|
||||
- id: 5.4
|
||||
text: "Secrets Management"
|
||||
checks:
|
||||
- id: 5.4.1
|
||||
text: "Prefer using Secrets as files over Secrets as environment variables (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
If possible, rewrite application code to read Secrets from mounted secret files, rather than
|
||||
from environment variables.
|
||||
scored: false
|
||||
|
||||
- id: 5.4.2
|
||||
text: "Consider external secret storage (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Refer to the Secrets management options offered by your cloud provider or a third-party
|
||||
secrets management solution.
|
||||
scored: false
|
||||
|
||||
- id: 5.5
|
||||
text: "Extensible Admission Control"
|
||||
checks:
|
||||
- id: 5.5.1
|
||||
text: "Configure Image Provenance using ImagePolicyWebhook admission controller (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and setup image provenance.
|
||||
scored: false
|
||||
|
||||
- id: 5.7
|
||||
text: "General Policies"
|
||||
checks:
|
||||
- id: 5.7.1
|
||||
text: "Create administrative boundaries between resources using namespaces (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the documentation and create namespaces for objects in your deployment as you need
|
||||
them.
|
||||
scored: false
|
||||
|
||||
- id: 5.7.2
|
||||
text: "Ensure that the seccomp profile is set to docker/default in your Pod definitions (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Use `securityContext` to enable the docker/default seccomp profile in your pod definitions.
|
||||
An example is as below:
|
||||
securityContext:
|
||||
seccompProfile:
|
||||
type: RuntimeDefault
|
||||
scored: false
|
||||
|
||||
- id: 5.7.3
|
||||
text: "Apply SecurityContext to your Pods and Containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and apply SecurityContexts to your Pods. For a
|
||||
suggested list of SecurityContexts, you may refer to the CIS Security Benchmark for Docker
|
||||
Containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.7.4
|
||||
text: "The default namespace should not be used (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Ensure that namespaces are created to allow for appropriate segregation of Kubernetes
|
||||
resources and that all new resources are created in a specific namespace.
|
||||
scored: false
|
||||
48
cfg/k3s-cis-1.24/config.yaml
Normal file
48
cfg/k3s-cis-1.24/config.yaml
Normal file
@@ -0,0 +1,48 @@
|
||||
---
|
||||
## Version-specific settings that override the values in cfg/config.yaml
|
||||
|
||||
master:
|
||||
components:
|
||||
- apiserver
|
||||
- scheduler
|
||||
- controllermanager
|
||||
- etcd
|
||||
- policies
|
||||
|
||||
apiserver:
|
||||
bins:
|
||||
- containerd
|
||||
|
||||
scheduler:
|
||||
bins:
|
||||
- containerd
|
||||
|
||||
controllermanager:
|
||||
bins:
|
||||
- containerd
|
||||
|
||||
etcd:
|
||||
bins:
|
||||
- containerd
|
||||
datadirs:
|
||||
- /var/lib/rancher/k3s/server/db/etcd
|
||||
|
||||
node:
|
||||
components:
|
||||
- kubelet
|
||||
- proxy
|
||||
|
||||
kubelet:
|
||||
bins:
|
||||
- containerd
|
||||
defaultkubeconfig: /var/lib/rancher/k3s/agent/kubelet.kubeconfig
|
||||
defaultcafile: /var/lib/rancher/k3s/agent/client-ca.crt
|
||||
|
||||
proxy:
|
||||
bins:
|
||||
- containerd
|
||||
defaultkubeconfig: /var/lib/rancher/k3s/agent/kubeproxy.kubeconfig
|
||||
|
||||
policies:
|
||||
components:
|
||||
- policies
|
||||
46
cfg/k3s-cis-1.24/controlplane.yaml
Normal file
46
cfg/k3s-cis-1.24/controlplane.yaml
Normal file
@@ -0,0 +1,46 @@
|
||||
---
|
||||
controls:
|
||||
version: "k3s-cis-1.24"
|
||||
id: 3
|
||||
text: "Control Plane Configuration"
|
||||
type: "controlplane"
|
||||
groups:
|
||||
- id: 3.1
|
||||
text: "Authentication and Authorization"
|
||||
checks:
|
||||
- id: 3.1.1
|
||||
text: "Client certificate authentication should not be used for users (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Alternative mechanisms provided by Kubernetes such as the use of OIDC should be
|
||||
implemented in place of client certificates.
|
||||
scored: false
|
||||
|
||||
- id: 3.2
|
||||
text: "Logging"
|
||||
checks:
|
||||
- id: 3.2.1
|
||||
text: "Ensure that a minimal audit policy is created (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep 'audit-policy-file'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--audit-policy-file"
|
||||
set: true
|
||||
remediation: |
|
||||
Create an audit policy file for your cluster.
|
||||
scored: false
|
||||
|
||||
- id: 3.2.2
|
||||
text: "Ensure that the audit policy covers key security concerns (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Review the audit policy provided for the cluster and ensure that it covers
|
||||
at least the following areas,
|
||||
- Access to Secrets managed by the cluster. Care should be taken to only
|
||||
log Metadata for requests to Secrets, ConfigMaps, and TokenReviews, in
|
||||
order to avoid risk of logging sensitive data.
|
||||
- Modification of Pod and Deployment objects.
|
||||
- Use of `pods/exec`, `pods/portforward`, `pods/proxy` and `services/proxy`.
|
||||
For most requests, minimally logging at the Metadata level is recommended
|
||||
(the most basic level of logging).
|
||||
scored: false
|
||||
137
cfg/k3s-cis-1.24/etcd.yaml
Normal file
137
cfg/k3s-cis-1.24/etcd.yaml
Normal file
@@ -0,0 +1,137 @@
|
||||
---
|
||||
controls:
|
||||
version: "k3s-cis-1.24"
|
||||
id: 2
|
||||
text: "Etcd Node Configuration"
|
||||
type: "etcd"
|
||||
groups:
|
||||
- id: 2
|
||||
text: "Etcd Node Configuration"
|
||||
checks:
|
||||
- id: 2.1
|
||||
text: "Ensure that the --cert-file and --key-file arguments are set as appropriate (Automated)"
|
||||
audit: "grep -A 4 'client-transport-security' $etcdconf | grep -E 'cert-file|key-file'"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "cert-file"
|
||||
set: true
|
||||
- flag: "key-file"
|
||||
set: true
|
||||
remediation: |
|
||||
Follow the etcd service documentation and configure TLS encryption.
|
||||
Then, edit the etcd pod specification file /etc/kubernetes/manifests/etcd.yaml
|
||||
on the master node and set the below parameters.
|
||||
--cert-file=</path/to/ca-file>
|
||||
--key-file=</path/to/key-file>
|
||||
scored: true
|
||||
|
||||
- id: 2.2
|
||||
text: "Ensure that the --client-cert-auth argument is set to true (Automated)"
|
||||
audit: "grep -A 4 'client-transport-security' $etcdconf | grep 'client-cert-auth'"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--client-cert-auth"
|
||||
set: true
|
||||
- flag: "client-cert-auth"
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
set: true
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and set the below parameter.
|
||||
--client-cert-auth="true"
|
||||
scored: true
|
||||
|
||||
- id: 2.3
|
||||
text: "Ensure that the --auto-tls argument is not set to true (Automated)"
|
||||
audit: "if grep -q '^auto-tls' $etcdconf;then grep '^auto-tls' $etcdconf;else echo 'notset';fi"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--auto-tls"
|
||||
set: false
|
||||
- flag: "--auto-tls"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and either remove the --auto-tls parameter or set it to false.
|
||||
--auto-tls=false
|
||||
scored: true
|
||||
|
||||
- id: 2.4
|
||||
text: "Ensure that the --peer-cert-file and --peer-key-file arguments are set as appropriate (Automated)"
|
||||
audit: "grep -A 4 'peer-transport-security' $etcdconf | grep -E 'cert-file|key-file'"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "cert-file"
|
||||
set: true
|
||||
- flag: "key-file"
|
||||
set: true
|
||||
remediation: |
|
||||
Follow the etcd service documentation and configure peer TLS encryption as appropriate
|
||||
for your etcd cluster.
|
||||
Then, edit the etcd pod specification file $etcdconf on the
|
||||
master node and set the below parameters.
|
||||
--peer-client-file=</path/to/peer-cert-file>
|
||||
--peer-key-file=</path/to/peer-key-file>
|
||||
scored: true
|
||||
|
||||
- id: 2.5
|
||||
text: "Ensure that the --peer-client-cert-auth argument is set to true (Automated)"
|
||||
audit: "grep -A 4 'peer-transport-security' $etcdconf | grep 'client-cert-auth'"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--client-cert-auth"
|
||||
set: true
|
||||
- flag: "client-cert-auth"
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
set: true
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and set the below parameter.
|
||||
--peer-client-cert-auth=true
|
||||
scored: true
|
||||
|
||||
- id: 2.6
|
||||
text: "Ensure that the --peer-auto-tls argument is not set to true (Automated)"
|
||||
audit: "if grep -q '^peer-auto-tls' $etcdconf;then grep '^peer-auto-tls' $etcdconf;else echo 'notset';fi"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--peer-auto-tls"
|
||||
set: false
|
||||
- flag: "--peer-auto-tls"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
set: true
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and either remove the --peer-auto-tls parameter or set it to false.
|
||||
--peer-auto-tls=false
|
||||
scored: true
|
||||
|
||||
- id: 2.7
|
||||
text: "Ensure that a unique Certificate Authority is used for etcd (Automated)"
|
||||
audit: "if grep -q 'trusted-ca-file' $etcdconf;then grep 'trusted-ca-file' $etcdconf;else echo 'notset';fi"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "trusted-ca-file"
|
||||
set: true
|
||||
remediation: |
|
||||
[Manual test]
|
||||
Follow the etcd documentation and create a dedicated certificate authority setup for the
|
||||
etcd service.
|
||||
Then, edit the etcd pod specification file $etcdconf on the
|
||||
master node and set the below parameter.
|
||||
--trusted-ca-file=</path/to/ca-file>
|
||||
scored: false
|
||||
992
cfg/k3s-cis-1.24/master.yaml
Normal file
992
cfg/k3s-cis-1.24/master.yaml
Normal file
@@ -0,0 +1,992 @@
|
||||
---
|
||||
controls:
|
||||
version: "k3s-cis-1.24"
|
||||
id: 1
|
||||
text: "Control Plane Security Configuration"
|
||||
type: "master"
|
||||
groups:
|
||||
- id: 1.1
|
||||
text: "Control Plane Node Configuration Files"
|
||||
checks:
|
||||
- id: 1.1.1
|
||||
text: "Ensure that the API server pod specification file permissions are set to 644 or more restrictive (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $apiserverconf; then stat -c permissions=%a $apiserverconf; fi'"
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "644"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the
|
||||
control plane node.
|
||||
For example, chmod 644 $apiserverconf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.2
|
||||
text: "Ensure that the API server pod specification file ownership is set to root:root (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $apiserverconf; then stat -c %U:%G $apiserverconf; fi'"
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chown root:root $apiserverconf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.3
|
||||
text: "Ensure that the controller manager pod specification file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $controllermanagerconf; then stat -c permissions=%a $controllermanagerconf; fi'"
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chmod 600 $controllermanagerconf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.4
|
||||
text: "Ensure that the controller manager pod specification file ownership is set to root:root (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $controllermanagerconf; then stat -c %U:%G $controllermanagerconf; fi'"
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chown root:root $controllermanagerconf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.5
|
||||
text: "Ensure that the scheduler pod specification file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $schedulerconf; then stat -c permissions=%a $schedulerconf; fi'"
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chmod 600 $schedulerconf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.6
|
||||
text: "Ensure that the scheduler pod specification file ownership is set to root:root (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $schedulerconf; then stat -c %U:%G $schedulerconf; fi'"
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chown root:root $schedulerconf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.7
|
||||
text: "Ensure that the etcd pod specification file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $etcdconf; then stat -c permissions=%a $etcdconf; fi'"
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chmod 600 $etcdconf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.8
|
||||
text: "Ensure that the etcd pod specification file ownership is set to root:root (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e $etcdconf; then stat -c %U:%G $etcdconf; fi'"
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chown root:root $etcdconf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.9
|
||||
text: "Ensure that the Container Network Interface file permissions are set to 600 or more restrictive (Automated)"
|
||||
type: "skip"
|
||||
audit: |
|
||||
ps -ef | grep $kubeletbin | grep -- --cni-conf-dir | sed 's%.*cni-conf-dir[= ]\([^ ]*\).*%\1%' | xargs -I{} find {} -mindepth 1 | xargs --no-run-if-empty stat -c permissions=%a
|
||||
find /var/lib/cni/networks -type f 2> /dev/null | xargs --no-run-if-empty stat -c permissions=%a
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chmod 600 <path/to/cni/files>
|
||||
scored: false
|
||||
|
||||
- id: 1.1.10
|
||||
text: "Ensure that the Container Network Interface file ownership is set to root:root (Automated)"
|
||||
type: "skip"
|
||||
audit: |
|
||||
ps -ef | grep $kubeletbin | grep -- --cni-conf-dir | sed 's%.*cni-conf-dir[= ]\([^ ]*\).*%\1%' | xargs -I{} find {} -mindepth 1 | xargs --no-run-if-empty stat -c %U:%G
|
||||
find /var/lib/cni/networks -type f 2> /dev/null | xargs --no-run-if-empty stat -c %U:%G
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chown root:root <path/to/cni/files>
|
||||
scored: false
|
||||
|
||||
- id: 1.1.11
|
||||
text: "Ensure that the etcd data directory permissions are set to 700 or more restrictive (Automated)"
|
||||
audit: "stat -c %a $etcddatadir"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "700"
|
||||
compare:
|
||||
op: eq
|
||||
value: "700"
|
||||
set: true
|
||||
remediation: |
|
||||
On the etcd server node, get the etcd data directory, passed as an argument --data-dir,
|
||||
from the command 'ps -ef | grep etcd'.
|
||||
Run the below command (based on the etcd data directory found above). For example,
|
||||
chmod 700 /var/lib/etcd
|
||||
scored: true
|
||||
|
||||
- id: 1.1.12
|
||||
text: "Ensure that the etcd data directory ownership is set to etcd:etcd (Automated)"
|
||||
audit: ps -ef | grep $etcdbin | grep -- --data-dir | sed 's%.*data-dir[= ]\([^ ]*\).*%\1%' | xargs stat -c %U:%G
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "etcd:etcd"
|
||||
remediation: |
|
||||
On the etcd server node, get the etcd data directory, passed as an argument --data-dir,
|
||||
from the command 'ps -ef | grep etcd'.
|
||||
Run the below command (based on the etcd data directory found above).
|
||||
For example, chown etcd:etcd /var/lib/etcd
|
||||
scored: true
|
||||
|
||||
- id: 1.1.13
|
||||
text: "Ensure that the admin.conf file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e /var/lib/rancher/k3s/server/cred/admin.kubeconfig; then stat -c permissions=%a /var/lib/rancher/k3s/server/cred/admin.kubeconfig'"
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "600"
|
||||
compare:
|
||||
op: eq
|
||||
value: "600"
|
||||
set: true
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chmod 600 /var/lib/rancher/k3s/server/cred/admin.kubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 1.1.14
|
||||
text: "Ensure that the admin.conf file ownership is set to root:root (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e /var/lib/rancher/k3s/server/cred/admin.kubeconfig; then stat -c %U:%G /var/lib/rancher/k3s/server/cred/admin.kubeconfig; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
compare:
|
||||
op: eq
|
||||
value: "root:root"
|
||||
set: true
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chown root:root /etc/kubernetes/admin.conf
|
||||
scored: true
|
||||
|
||||
- id: 1.1.15
|
||||
text: "Ensure that the scheduler.conf file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e /var/lib/rancher/k3s/server/cred/scheduler.kubeconfig; then stat -c permissions=%a /var/lib/rancher/k3s/server/cred/scheduler.kubeconfig; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chmod 600 $schedulerkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 1.1.16
|
||||
text: "Ensure that the scheduler.conf file ownership is set to root:root (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e /var/lib/rancher/k3s/server/cred/scheduler.kubeconfig; then stat -c %U:%G /var/lib/rancher/k3s/server/cred/scheduler.kubeconfig; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chown root:root $schedulerkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 1.1.17
|
||||
text: "Ensure that the controller-manager.conf file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: "/bin/sh -c 'if test -e /var/lib/rancher/k3s/server/cred/controller.kubeconfig; then stat -c permissions=%a /var/lib/rancher/k3s/server/cred/controller.kubeconfig; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chmod 600 $controllermanagerkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 1.1.18
|
||||
text: "Ensure that the controller-manager.conf file ownership is set to root:root (Automated)"
|
||||
audit: "stat -c %U:%G /var/lib/rancher/k3s/server/tls"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
compare:
|
||||
op: eq
|
||||
value: "root:root"
|
||||
set: true
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chown root:root $controllermanagerkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 1.1.19
|
||||
text: "Ensure that the Kubernetes PKI directory and file ownership is set to root:root (Automated)"
|
||||
audit: "find /var/lib/rancher/k3s/server/tls | xargs stat -c %U:%G"
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chown -R root:root /etc/kubernetes/pki/
|
||||
scored: true
|
||||
|
||||
- id: 1.1.20
|
||||
text: "Ensure that the Kubernetes PKI certificate file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: "stat -c %n\ %a /var/lib/rancher/k3s/server/tls/*.crt"
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chmod -R 600 /etc/kubernetes/pki/*.crt
|
||||
scored: false
|
||||
|
||||
- id: 1.1.21
|
||||
text: "Ensure that the Kubernetes PKI key file permissions are set to 600 (Automated)"
|
||||
audit: "stat -c %n\ %a /var/lib/rancher/k3s/server/tls/*.key"
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chmod -R 600 /etc/kubernetes/pki/*.key
|
||||
scored: false
|
||||
|
||||
- id: 1.2
|
||||
text: "API Server"
|
||||
checks:
|
||||
- id: 1.2.1
|
||||
text: "Ensure that the --anonymous-auth argument is set to false (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep 'anonymous-auth'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--anonymous-auth"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the below parameter.
|
||||
--anonymous-auth=false
|
||||
scored: false
|
||||
|
||||
- id: 1.2.2
|
||||
text: "Ensure that the --token-auth-file parameter is not set (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--token-auth-file"
|
||||
set: false
|
||||
remediation: |
|
||||
Follow the documentation and configure alternate mechanisms for authentication. Then,
|
||||
edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and remove the --token-auth-file=<filename> parameter.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.3
|
||||
text: "Ensure that the --DenyServiceExternalIPs is not set (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--enable-admission-plugins"
|
||||
compare:
|
||||
op: nothave
|
||||
value: "DenyServiceExternalIPs"
|
||||
set: true
|
||||
- flag: "--enable-admission-plugins"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and remove the `DenyServiceExternalIPs`
|
||||
from enabled admission plugins.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.4
|
||||
text: "Ensure that the --kubelet-https argument is set to true (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep 'kubelet-https'"
|
||||
type: "skip"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--kubelet-https"
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
- flag: "--kubelet-https"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and remove the --kubelet-https parameter.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.5
|
||||
text: "Ensure that the --kubelet-client-certificate and --kubelet-client-key arguments are set as appropriate (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep 'kubelet-certificate-authority'"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "--kubelet-client-certificate"
|
||||
- flag: "--kubelet-client-key"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and set up the TLS connection between the
|
||||
apiserver and kubelets. Then, edit API server pod specification file
|
||||
$apiserverconf on the control plane node and set the
|
||||
kubelet client certificate and key parameters as below.
|
||||
--kubelet-client-certificate=<path/to/client-certificate-file>
|
||||
--kubelet-client-key=<path/to/client-key-file>
|
||||
scored: true
|
||||
|
||||
- id: 1.2.6
|
||||
text: "Ensure that the --kubelet-certificate-authority argument is set as appropriate (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep 'kubelet-certificate-authority'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--kubelet-certificate-authority"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and setup the TLS connection between
|
||||
the apiserver and kubelets. Then, edit the API server pod specification file
|
||||
$apiserverconf on the control plane node and set the
|
||||
--kubelet-certificate-authority parameter to the path to the cert file for the certificate authority.
|
||||
--kubelet-certificate-authority=<ca-string>
|
||||
scored: true
|
||||
|
||||
- id: 1.2.7
|
||||
text: "Ensure that the --authorization-mode argument is not set to AlwaysAllow (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep 'authorization-mode'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--authorization-mode"
|
||||
compare:
|
||||
op: nothave
|
||||
value: "AlwaysAllow"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --authorization-mode parameter to values other than AlwaysAllow.
|
||||
One such example could be as below.
|
||||
--authorization-mode=RBAC
|
||||
scored: true
|
||||
|
||||
- id: 1.2.8
|
||||
text: "Ensure that the --authorization-mode argument includes Node (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep 'authorization-mode'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--authorization-mode"
|
||||
compare:
|
||||
op: has
|
||||
value: "Node"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --authorization-mode parameter to a value that includes Node.
|
||||
--authorization-mode=Node,RBAC
|
||||
scored: true
|
||||
|
||||
- id: 1.2.9
|
||||
text: "Ensure that the --authorization-mode argument includes RBAC (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep 'authorization-mode'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--authorization-mode"
|
||||
compare:
|
||||
op: has
|
||||
value: "RBAC"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --authorization-mode parameter to a value that includes RBAC,
|
||||
for example `--authorization-mode=Node,RBAC`.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.10
|
||||
text: "Ensure that the admission control plugin EventRateLimit is set (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep 'enable-admission-plugins'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--enable-admission-plugins"
|
||||
compare:
|
||||
op: has
|
||||
value: "EventRateLimit"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and set the desired limits in a configuration file.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
and set the below parameters.
|
||||
--enable-admission-plugins=...,EventRateLimit,...
|
||||
--admission-control-config-file=<path/to/configuration/file>
|
||||
scored: false
|
||||
|
||||
- id: 1.2.11
|
||||
text: "Ensure that the admission control plugin AlwaysAdmit is not set (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep 'enable-admission-plugins'"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--enable-admission-plugins"
|
||||
compare:
|
||||
op: nothave
|
||||
value: AlwaysAdmit
|
||||
- flag: "--enable-admission-plugins"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and either remove the --enable-admission-plugins parameter, or set it to a
|
||||
value that does not include AlwaysAdmit.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.12
|
||||
text: "Ensure that the admission control plugin AlwaysPullImages is set (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--enable-admission-plugins"
|
||||
compare:
|
||||
op: has
|
||||
value: "AlwaysPullImages"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --enable-admission-plugins parameter to include
|
||||
AlwaysPullImages.
|
||||
--enable-admission-plugins=...,AlwaysPullImages,...
|
||||
scored: false
|
||||
|
||||
- id: 1.2.13
|
||||
text: "Ensure that the admission control plugin SecurityContextDeny is set if PodSecurityPolicy is not used (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep 'enable-admission-plugins'"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--enable-admission-plugins"
|
||||
compare:
|
||||
op: has
|
||||
value: "SecurityContextDeny"
|
||||
- flag: "--enable-admission-plugins"
|
||||
compare:
|
||||
op: has
|
||||
value: "PodSecurityPolicy"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --enable-admission-plugins parameter to include
|
||||
SecurityContextDeny, unless PodSecurityPolicy is already in place.
|
||||
--enable-admission-plugins=...,SecurityContextDeny,...
|
||||
scored: false
|
||||
|
||||
- id: 1.2.14
|
||||
text: "Ensure that the admission control plugin ServiceAccount is set (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--disable-admission-plugins"
|
||||
compare:
|
||||
op: nothave
|
||||
value: "ServiceAccount"
|
||||
- flag: "--disable-admission-plugins"
|
||||
set: false
|
||||
remediation: |
|
||||
Follow the documentation and create ServiceAccount objects as per your environment.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and ensure that the --disable-admission-plugins parameter is set to a
|
||||
value that does not include ServiceAccount.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.15
|
||||
text: "Ensure that the admission control plugin NamespaceLifecycle is set (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--disable-admission-plugins"
|
||||
compare:
|
||||
op: nothave
|
||||
value: "NamespaceLifecycle"
|
||||
- flag: "--disable-admission-plugins"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --disable-admission-plugins parameter to
|
||||
ensure it does not include NamespaceLifecycle.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.16
|
||||
text: "Ensure that the admission control plugin NodeRestriction is set (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep 'enable-admission-plugins'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--enable-admission-plugins"
|
||||
compare:
|
||||
op: has
|
||||
value: "NodeRestriction"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and configure NodeRestriction plug-in on kubelets.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --enable-admission-plugins parameter to a
|
||||
value that includes NodeRestriction.
|
||||
--enable-admission-plugins=...,NodeRestriction,...
|
||||
scored: true
|
||||
|
||||
- id: 1.2.17
|
||||
text: "Ensure that the --secure-port argument is not set to 0 (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep 'secure-port'"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--secure-port"
|
||||
compare:
|
||||
op: gt
|
||||
value: 0
|
||||
- flag: "--secure-port"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and either remove the --secure-port parameter or
|
||||
set it to a different (non-zero) desired port.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.18
|
||||
text: "Ensure that the --profiling argument is set to false (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep 'profiling'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--profiling"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the below parameter.
|
||||
--profiling=false
|
||||
scored: true
|
||||
|
||||
- id: 1.2.19
|
||||
text: "Ensure that the --audit-log-path argument is set (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep -v grep"
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--audit-log-path"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --audit-log-path parameter to a suitable path and
|
||||
file where you would like audit logs to be written, for example,
|
||||
--audit-log-path=/var/log/apiserver/audit.log
|
||||
scored: true
|
||||
|
||||
- id: 1.2.20
|
||||
text: "Ensure that the --audit-log-maxage argument is set to 30 or as appropriate (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep -v grep"
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--audit-log-maxage"
|
||||
compare:
|
||||
op: gte
|
||||
value: 30
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --audit-log-maxage parameter to 30
|
||||
or as an appropriate number of days, for example,
|
||||
--audit-log-maxage=30
|
||||
scored: true
|
||||
|
||||
- id: 1.2.21
|
||||
text: "Ensure that the --audit-log-maxbackup argument is set to 10 or as appropriate (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep -v grep"
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--audit-log-maxbackup"
|
||||
compare:
|
||||
op: gte
|
||||
value: 10
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --audit-log-maxbackup parameter to 10 or to an appropriate
|
||||
value. For example,
|
||||
--audit-log-maxbackup=10
|
||||
scored: true
|
||||
|
||||
- id: 1.2.22
|
||||
text: "Ensure that the --audit-log-maxsize argument is set to 100 or as appropriate (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep -v grep"
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--audit-log-maxsize"
|
||||
compare:
|
||||
op: gte
|
||||
value: 100
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --audit-log-maxsize parameter to an appropriate size in MB.
|
||||
For example, to set it as 100 MB, --audit-log-maxsize=100
|
||||
scored: true
|
||||
|
||||
- id: 1.2.23
|
||||
text: "Ensure that the --request-timeout argument is set as appropriate (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep -v grep"
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--request-timeout"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
and set the below parameter as appropriate and if needed.
|
||||
For example, --request-timeout=300s
|
||||
scored: true
|
||||
|
||||
- id: 1.2.24
|
||||
text: "Ensure that the --service-account-lookup argument is set to true (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--service-account-lookup"
|
||||
set: false
|
||||
- flag: "--service-account-lookup"
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the below parameter.
|
||||
--service-account-lookup=true
|
||||
Alternatively, you can delete the --service-account-lookup parameter from this file so
|
||||
that the default takes effect.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.25
|
||||
text: "Ensure that the --service-account-key-file argument is set as appropriate (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep -v grep"
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--service-account-key-file"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --service-account-key-file parameter
|
||||
to the public key file for service accounts. For example,
|
||||
--service-account-key-file=<filename>
|
||||
scored: true
|
||||
|
||||
- id: 1.2.26
|
||||
text: "Ensure that the --etcd-certfile and --etcd-keyfile arguments are set as appropriate (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep -m1 'Running kube-apiserver'"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "--etcd-certfile"
|
||||
set: true
|
||||
- flag: "--etcd-keyfile"
|
||||
set: true
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and set up the TLS connection between the apiserver and etcd.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the etcd certificate and key file parameters.
|
||||
--etcd-certfile=<path/to/client-certificate-file>
|
||||
--etcd-keyfile=<path/to/client-key-file>
|
||||
scored: true
|
||||
|
||||
- id: 1.2.27
|
||||
text: "Ensure that the --tls-cert-file and --tls-private-key-file arguments are set as appropriate (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep -A1 'Running kube-apiserver' | tail -n2"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "--tls-cert-file"
|
||||
set: true
|
||||
- flag: "--tls-private-key-file"
|
||||
set: true
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and set up the TLS connection on the apiserver.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the TLS certificate and private key file parameters.
|
||||
--tls-cert-file=<path/to/tls-certificate-file>
|
||||
--tls-private-key-file=<path/to/tls-key-file>
|
||||
scored: true
|
||||
|
||||
- id: 1.2.28
|
||||
text: "Ensure that the --client-ca-file argument is set as appropriate (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep 'client-ca-file'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--client-ca-file"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and set up the TLS connection on the apiserver.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the client certificate authority file.
|
||||
--client-ca-file=<path/to/client-ca-file>
|
||||
scored: true
|
||||
|
||||
- id: 1.2.29
|
||||
text: "Ensure that the --etcd-cafile argument is set as appropriate (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep 'etcd-cafile'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--etcd-cafile"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and set up the TLS connection between the apiserver and etcd.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the etcd certificate authority file parameter.
|
||||
--etcd-cafile=<path/to/ca-file>
|
||||
scored: true
|
||||
|
||||
- id: 1.2.30
|
||||
text: "Ensure that the --encryption-provider-config argument is set as appropriate (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep 'encryption-provider-config'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--encryption-provider-config"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and configure a EncryptionConfig file.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --encryption-provider-config parameter to the path of that file.
|
||||
For example, --encryption-provider-config=</path/to/EncryptionConfig/File>
|
||||
scored: false
|
||||
|
||||
- id: 1.2.31
|
||||
text: "Ensure that encryption providers are appropriately configured (Automated)"
|
||||
audit: |
|
||||
ENCRYPTION_PROVIDER_CONFIG=$(ps -ef | grep $apiserverbin | grep -- --encryption-provider-config | sed 's%.*encryption-provider-config[= ]\([^ ]*\).*%\1%')
|
||||
if test -e $ENCRYPTION_PROVIDER_CONFIG; then grep -A1 'providers:' $ENCRYPTION_PROVIDER_CONFIG | tail -n1 | grep -o "[A-Za-z]*" | sed 's/^/provider=/'; fi
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "provider"
|
||||
compare:
|
||||
op: valid_elements
|
||||
value: "aescbc,kms,secretbox"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and configure a EncryptionConfig file.
|
||||
In this file, choose aescbc, kms or secretbox as the encryption provider.
|
||||
scored: false
|
||||
|
||||
- id: 1.2.32
|
||||
text: "Ensure that the API Server only makes use of Strong Cryptographic Ciphers (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep 'tls-cipher-suites'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--tls-cipher-suites"
|
||||
compare:
|
||||
op: valid_elements
|
||||
value: "TLS_AES_128_GCM_SHA256,TLS_AES_256_GCM_SHA384,TLS_CHACHA20_POLY1305_SHA256,TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256,TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256,TLS_RSA_WITH_3DES_EDE_CBC_SHA,TLS_RSA_WITH_AES_128_CBC_SHA,TLS_RSA_WITH_AES_128_GCM_SHA256,TLS_RSA_WITH_AES_256_CBC_SHA,TLS_RSA_WITH_AES_256_GCM_SHA384"
|
||||
remediation: |
|
||||
Edit the API server pod specification file /etc/kubernetes/manifests/kube-apiserver.yaml
|
||||
on the control plane node and set the below parameter.
|
||||
--tls-cipher-suites=TLS_AES_128_GCM_SHA256,TLS_AES_256_GCM_SHA384,TLS_CHACHA20_POLY1305_SHA256,
|
||||
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
|
||||
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
|
||||
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256,
|
||||
TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
|
||||
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,
|
||||
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256,TLS_RSA_WITH_3DES_EDE_CBC_SHA,TLS_RSA_WITH_AES_128_CBC_SHA,
|
||||
TLS_RSA_WITH_AES_128_GCM_SHA256,TLS_RSA_WITH_AES_256_CBC_SHA,TLS_RSA_WITH_AES_256_GCM_SHA384
|
||||
scored: false
|
||||
|
||||
- id: 1.3
|
||||
text: "Controller Manager"
|
||||
checks:
|
||||
- id: 1.3.1
|
||||
text: "Ensure that the --terminated-pod-gc-threshold argument is set as appropriate (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-controller-manager' | tail -n1 | grep 'terminated-pod-gc-threshold'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--terminated-pod-gc-threshold"
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node and set the --terminated-pod-gc-threshold to an appropriate threshold,
|
||||
for example, --terminated-pod-gc-threshold=10
|
||||
scored: false
|
||||
|
||||
- id: 1.3.2
|
||||
text: "Ensure that the --profiling argument is set to false (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-controller-manager' | tail -n1 | grep 'profiling'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--profiling"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node and set the below parameter.
|
||||
--profiling=false
|
||||
scored: true
|
||||
|
||||
- id: 1.3.3
|
||||
text: "Ensure that the --use-service-account-credentials argument is set to true (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-controller-manager' | tail -n1 | grep 'use-service-account-credentials'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--use-service-account-credentials"
|
||||
compare:
|
||||
op: noteq
|
||||
value: false
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node to set the below parameter.
|
||||
--use-service-account-credentials=true
|
||||
scored: true
|
||||
|
||||
- id: 1.3.4
|
||||
text: "Ensure that the --service-account-private-key-file argument is set as appropriate (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-controller-manager' | tail -n1 | grep 'service-account-private-key-file'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--service-account-private-key-file"
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node and set the --service-account-private-key-file parameter
|
||||
to the private key file for service accounts.
|
||||
--service-account-private-key-file=<filename>
|
||||
scored: true
|
||||
|
||||
- id: 1.3.5
|
||||
text: "Ensure that the --root-ca-file argument is set as appropriate (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-controller-manager' | tail -n1 | grep 'root-ca-file'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--root-ca-file"
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node and set the --root-ca-file parameter to the certificate bundle file`.
|
||||
--root-ca-file=<path/to/file>
|
||||
scored: true
|
||||
|
||||
- id: 1.3.6
|
||||
text: "Ensure that the RotateKubeletServerCertificate argument is set to true (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-controller-manager' | tail -n1 | grep 'RotateKubeletServerCertificate'"
|
||||
type: "skip"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--feature-gates"
|
||||
compare:
|
||||
op: nothave
|
||||
value: "RotateKubeletServerCertificate=false"
|
||||
set: true
|
||||
- flag: "--feature-gates"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node and set the --feature-gates parameter to include RotateKubeletServerCertificate=true.
|
||||
--feature-gates=RotateKubeletServerCertificate=true
|
||||
scored: true
|
||||
|
||||
- id: 1.3.7
|
||||
text: "Ensure that the --bind-address argument is set to 127.0.0.1 (Automated)"
|
||||
audit: "/bin/ps -ef | grep $controllermanagerbin | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--bind-address"
|
||||
compare:
|
||||
op: eq
|
||||
value: "127.0.0.1"
|
||||
set: true
|
||||
- flag: "--bind-address"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node and ensure the correct value for the --bind-address parameter
|
||||
scored: true
|
||||
|
||||
- id: 1.4
|
||||
text: "Scheduler"
|
||||
checks:
|
||||
- id: 1.4.1
|
||||
text: "Ensure that the --profiling argument is set to false (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-scheduler' | tail -n1"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--profiling"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
set: true
|
||||
remediation: |
|
||||
Edit the Scheduler pod specification file $schedulerconf file
|
||||
on the control plane node and set the below parameter.
|
||||
--profiling=false
|
||||
scored: true
|
||||
|
||||
- id: 1.4.2
|
||||
text: "Ensure that the --bind-address argument is set to 127.0.0.1 (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-scheduler' | tail -n1 | grep 'bind-address'"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--bind-address"
|
||||
compare:
|
||||
op: eq
|
||||
value: "127.0.0.1"
|
||||
set: true
|
||||
- flag: "--bind-address"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the Scheduler pod specification file $schedulerconf
|
||||
on the control plane node and ensure the correct value for the --bind-address parameter
|
||||
scored: true
|
||||
459
cfg/k3s-cis-1.24/node.yaml
Normal file
459
cfg/k3s-cis-1.24/node.yaml
Normal file
@@ -0,0 +1,459 @@
|
||||
---
|
||||
controls:
|
||||
version: "k3s-cis-1.24"
|
||||
id: 4
|
||||
text: "Worker Node Security Configuration"
|
||||
type: "node"
|
||||
groups:
|
||||
- id: 4.1
|
||||
text: "Worker Node Configuration Files"
|
||||
checks:
|
||||
- id: 4.1.1
|
||||
text: "Ensure that the kubelet service file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletsvc; then stat -c permissions=%a $kubeletsvc; fi'' '
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example, chmod 600 $kubeletsvc
|
||||
scored: true
|
||||
|
||||
- id: 4.1.2
|
||||
text: "Ensure that the kubelet service file ownership is set to root:root (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletsvc; then stat -c %U:%G $kubeletsvc; fi'' '
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chown root:root $kubeletsvc
|
||||
scored: true
|
||||
|
||||
- id: 4.1.3
|
||||
text: "If proxy kubeconfig file exists ensure permissions are set to 600 or more restrictive (Manual)"
|
||||
audit: 'stat -c %a /var/lib/rancher/k3s/agent/kubeproxy.kubeconfig'
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
set: true
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chmod 600 $proxykubeconfig
|
||||
scored: false
|
||||
|
||||
- id: 4.1.4
|
||||
text: "If proxy kubeconfig file exists ensure ownership is set to root:root (Manual)"
|
||||
audit: '/bin/sh -c ''if test -e /var/lib/rancher/k3s/agent/kubeproxy.kubeconfig; then stat -c %U:%G /var/lib/rancher/k3s/agent/kubeproxy.kubeconfig; fi'' '
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example, chown root:root $proxykubeconfig
|
||||
scored: false
|
||||
|
||||
- id: 4.1.5
|
||||
text: "Ensure that the --kubeconfig kubelet.conf file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: 'stat -c %a /var/lib/rancher/k3s/agent/kubelet.kubeconfig '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "600"
|
||||
compare:
|
||||
op: eq
|
||||
value: "600"
|
||||
set: true
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chmod 600 $kubeletkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 4.1.6
|
||||
text: "Ensure that the --kubeconfig kubelet.conf file ownership is set to root:root (Automated)"
|
||||
audit: 'stat -c %U:%G /var/lib/rancher/k3s/agent/kubelet.kubeconfig'
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
compare:
|
||||
op: eq
|
||||
value: "root:root"
|
||||
set: true
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chown root:root $kubeletkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 4.1.7
|
||||
text: "Ensure that the certificate authorities file permissions are set to 600 or more restrictive (Manual)"
|
||||
audit: "stat -c %a /var/lib/rancher/k3s/server/tls/server-ca.crt"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
set: true
|
||||
remediation: |
|
||||
Run the following command to modify the file permissions of the
|
||||
--client-ca-file chmod 600 <filename>
|
||||
scored: false
|
||||
|
||||
- id: 4.1.8
|
||||
text: "Ensure that the client certificate authorities file ownership is set to root:root (Manual)"
|
||||
audit: "stat -c %U:%G /var/lib/rancher/k3s/server/tls/client-ca.crt"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Run the following command to modify the ownership of the --client-ca-file.
|
||||
chown root:root <filename>
|
||||
scored: false
|
||||
|
||||
- id: 4.1.9
|
||||
text: "If the kubelet config.yaml configuration file is being used validate permissions set to 600 or more restrictive (Manual)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletconf; then stat -c permissions=%a $kubeletconf; fi'' '
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the following command (using the config file location identified in the Audit step)
|
||||
chmod 600 $kubeletconf
|
||||
scored: true
|
||||
|
||||
- id: 4.1.10
|
||||
text: "If the kubelet config.yaml configuration file is being used validate file ownership is set to root:root (Manual)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletconf; then stat -c %U:%G $kubeletconf; fi'' '
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Run the following command (using the config file location identified in the Audit step)
|
||||
chown root:root $kubeletconf
|
||||
scored: true
|
||||
|
||||
- id: 4.2
|
||||
text: "Kubelet"
|
||||
checks:
|
||||
- id: 4.2.1
|
||||
text: "Ensure that the --anonymous-auth argument is set to false (Automated)"
|
||||
audit: '/bin/sh -c ''if test $(journalctl -D /var/log/journal -u k3s | grep "Running kube-apiserver" | wc -l) -gt 0; then journalctl -D /var/log/journal -u k3s | grep "Running kube-apiserver" | tail -n1 | grep "anonymous-auth" | grep -v grep; else echo "--anonymous-auth=false"; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--anonymous-auth"
|
||||
path: '{.authentication.anonymous.enabled}'
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
set: true
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `authentication: anonymous: enabled` to
|
||||
`false`.
|
||||
If using executable arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
`--anonymous-auth=false`
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.2
|
||||
text: "Ensure that the --authorization-mode argument is not set to AlwaysAllow (Automated)"
|
||||
audit: '/bin/sh -c ''if test $(journalctl -D /var/log/journal -u k3s | grep "Running kube-apiserver" | wc -l) -gt 0; then journalctl -D /var/log/journal -u k3s | grep "Running kube-apiserver" | tail -n1 | grep "authorization-mode" | grep -v grep; else echo "--authorization-mode=Webhook"; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --authorization-mode
|
||||
path: '{.authorization.mode}'
|
||||
compare:
|
||||
op: nothave
|
||||
value: AlwaysAllow
|
||||
set: true
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `authorization.mode` to Webhook. If
|
||||
using executable arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_AUTHZ_ARGS variable.
|
||||
--authorization-mode=Webhook
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.3
|
||||
text: "Ensure that the --client-ca-file argument is set as appropriate (Automated)"
|
||||
audit: '/bin/sh -c ''if test $(journalctl -D /var/log/journal -u k3s | grep "Running kube-apiserver" | wc -l) -gt 0; then journalctl -D /var/log/journal -u k3s | grep "Running kube-apiserver" | tail -n1 | grep "client-ca-file" | grep -v grep; else echo "--client-ca-file=/var/lib/rancher/k3s/server/tls/request-header-ca.crt"; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --client-ca-file
|
||||
path: '{.authentication.x509.clientCAFile}'
|
||||
set: true
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `authentication.x509.clientCAFile` to
|
||||
the location of the client CA file.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_AUTHZ_ARGS variable.
|
||||
--client-ca-file=<path/to/client-ca-file>
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.4
|
||||
text: "Verify that the --read-only-port argument is set to 0 (Manual)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kubelet' | tail -n1 | grep 'read-only-port' "
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--read-only-port"
|
||||
path: '{.readOnlyPort}'
|
||||
compare:
|
||||
op: eq
|
||||
value: 0
|
||||
- flag: "--read-only-port"
|
||||
path: '{.readOnlyPort}'
|
||||
set: false
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `readOnlyPort` to 0.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
--read-only-port=0
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.5
|
||||
text: "Ensure that the --streaming-connection-idle-timeout argument is not set to 0 (Manual)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kubelet' | tail -n1 | grep 'streaming-connection-idle-timeout'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --streaming-connection-idle-timeout
|
||||
path: '{.streamingConnectionIdleTimeout}'
|
||||
compare:
|
||||
op: noteq
|
||||
value: 0
|
||||
- flag: --streaming-connection-idle-timeout
|
||||
path: '{.streamingConnectionIdleTimeout}'
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `streamingConnectionIdleTimeout` to a
|
||||
value other than 0.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
--streaming-connection-idle-timeout=5m
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.6
|
||||
text: "Ensure that the --protect-kernel-defaults argument is set to true (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kubelet' | tail -n1 | grep 'protect-kernel-defaults'"
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --protect-kernel-defaults
|
||||
path: '{.protectKernelDefaults}'
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
set: true
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `protectKernelDefaults` to `true`.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
--protect-kernel-defaults=true
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.7
|
||||
text: "Ensure that the --make-iptables-util-chains argument is set to true (Automated)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kubelet' | tail -n1 | grep 'make-iptables-util-chains'"
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --make-iptables-util-chains
|
||||
path: '{.makeIPTablesUtilChains}'
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
set: true
|
||||
- flag: --make-iptables-util-chains
|
||||
path: '{.makeIPTablesUtilChains}'
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `makeIPTablesUtilChains` to `true`.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
remove the --make-iptables-util-chains argument from the
|
||||
KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.8
|
||||
text: "Ensure that the --hostname-override argument is not set (Manual)"
|
||||
# This is one of those properties that can only be set as a command line argument.
|
||||
# To check if the property is set as expected, we need to parse the kubelet command
|
||||
# instead reading the Kubelet Configuration file.
|
||||
audit: "/bin/ps -fC $kubeletbin "
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --hostname-override
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the kubelet service file $kubeletsvc
|
||||
on each worker node and remove the --hostname-override argument from the
|
||||
KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.9
|
||||
text: "Ensure that the eventRecordQPS argument is set to a level which ensures appropriate event capture (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --event-qps
|
||||
path: '{.eventRecordQPS}'
|
||||
compare:
|
||||
op: eq
|
||||
value: 0
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `eventRecordQPS` to an appropriate level.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.10
|
||||
text: "Ensure that the --tls-cert-file and --tls-private-key-file arguments are set as appropriate (Manual)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kubelet' | tail -n1"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --tls-cert-file
|
||||
path: '/var/lib/rancher/k3s/agent/serving-kubelet.crt'
|
||||
- flag: --tls-private-key-file
|
||||
path: '/var/lib/rancher/k3s/agent/serving-kubelet.key'
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `tlsCertFile` to the location
|
||||
of the certificate file to use to identify this Kubelet, and `tlsPrivateKeyFile`
|
||||
to the location of the corresponding private key file.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameters in KUBELET_CERTIFICATE_ARGS variable.
|
||||
--tls-cert-file=<path/to/tls-certificate-file>
|
||||
--tls-private-key-file=<path/to/tls-key-file>
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.11
|
||||
text: "Ensure that the --rotate-certificates argument is not set to false (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --rotate-certificates
|
||||
path: '{.rotateCertificates}'
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
- flag: --rotate-certificates
|
||||
path: '{.rotateCertificates}'
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to add the line `rotateCertificates` to `true` or
|
||||
remove it altogether to use the default value.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
remove --rotate-certificates=false argument from the KUBELET_CERTIFICATE_ARGS
|
||||
variable.
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.12
|
||||
text: "Verify that the RotateKubeletServerCertificate argument is set to true (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: RotateKubeletServerCertificate
|
||||
path: '{.featureGates.RotateKubeletServerCertificate}'
|
||||
compare:
|
||||
op: nothave
|
||||
value: false
|
||||
- flag: RotateKubeletServerCertificate
|
||||
path: '{.featureGates.RotateKubeletServerCertificate}'
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the kubelet service file $kubeletsvc
|
||||
on each worker node and set the below parameter in KUBELET_CERTIFICATE_ARGS variable.
|
||||
--feature-gates=RotateKubeletServerCertificate=true
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.13
|
||||
text: "Ensure that the Kubelet only makes use of Strong Cryptographic Ciphers (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --tls-cipher-suites
|
||||
path: '{range .tlsCipherSuites[:]}{}{'',''}{end}'
|
||||
compare:
|
||||
op: valid_elements
|
||||
value: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `TLSCipherSuites` to
|
||||
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
|
||||
or to a subset of these values.
|
||||
If using executable arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the --tls-cipher-suites parameter as follows, or to a subset of these values.
|
||||
--tls-cipher-suites=TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
269
cfg/k3s-cis-1.24/policies.yaml
Normal file
269
cfg/k3s-cis-1.24/policies.yaml
Normal file
@@ -0,0 +1,269 @@
|
||||
---
|
||||
controls:
|
||||
version: "k3s-cis-1.24"
|
||||
id: 5
|
||||
text: "Kubernetes Policies"
|
||||
type: "policies"
|
||||
groups:
|
||||
- id: 5.1
|
||||
text: "RBAC and Service Accounts"
|
||||
checks:
|
||||
- id: 5.1.1
|
||||
text: "Ensure that the cluster-admin role is only used where required (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Identify all clusterrolebindings to the cluster-admin role. Check if they are used and
|
||||
if they need this role or if they could use a role with fewer privileges.
|
||||
Where possible, first bind users to a lower privileged role and then remove the
|
||||
clusterrolebinding to the cluster-admin role :
|
||||
kubectl delete clusterrolebinding [name]
|
||||
scored: false
|
||||
|
||||
- id: 5.1.2
|
||||
text: "Minimize access to secrets (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove get, list and watch access to Secret objects in the cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.3
|
||||
text: "Minimize wildcard use in Roles and ClusterRoles (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible replace any use of wildcards in clusterroles and roles with specific
|
||||
objects or actions.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.4
|
||||
text: "Minimize access to create pods (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove create access to pod objects in the cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.5
|
||||
text: "Ensure that default service accounts are not actively used. (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Create explicit service accounts wherever a Kubernetes workload requires specific access
|
||||
to the Kubernetes API server.
|
||||
Modify the configuration of each default service account to include this value
|
||||
automountServiceAccountToken: false
|
||||
scored: false
|
||||
|
||||
- id: 5.1.6
|
||||
text: "Ensure that Service Account Tokens are only mounted where necessary (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Modify the definition of pods and service accounts which do not need to mount service
|
||||
account tokens to disable it.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.7
|
||||
text: "Avoid use of system:masters group (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Remove the system:masters group from all users in the cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.8
|
||||
text: "Limit use of the Bind, Impersonate and Escalate permissions in the Kubernetes cluster (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove the impersonate, bind and escalate rights from subjects.
|
||||
scored: false
|
||||
|
||||
- id: 5.2
|
||||
text: "Pod Security Standards"
|
||||
checks:
|
||||
- id: 5.2.1
|
||||
text: "Ensure that the cluster has at least one active policy control mechanism in place (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Ensure that either Pod Security Admission or an external policy control system is in place
|
||||
for every namespace which contains user workloads.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.2
|
||||
text: "Minimize the admission of privileged containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of privileged containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.3
|
||||
text: "Minimize the admission of containers wishing to share the host process ID namespace (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of `hostPID` containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.4
|
||||
text: "Minimize the admission of containers wishing to share the host IPC namespace (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of `hostIPC` containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.5
|
||||
text: "Minimize the admission of containers wishing to share the host network namespace (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of `hostNetwork` containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.6
|
||||
text: "Minimize the admission of containers with allowPrivilegeEscalation (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers with `.spec.allowPrivilegeEscalation` set to `true`.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.7
|
||||
text: "Minimize the admission of root containers (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Create a policy for each namespace in the cluster, ensuring that either `MustRunAsNonRoot`
|
||||
or `MustRunAs` with the range of UIDs not including 0, is set.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.8
|
||||
text: "Minimize the admission of containers with the NET_RAW capability (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers with the `NET_RAW` capability.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.9
|
||||
text: "Minimize the admission of containers with added capabilities (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Ensure that `allowedCapabilities` is not present in policies for the cluster unless
|
||||
it is set to an empty array.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.10
|
||||
text: "Minimize the admission of containers with capabilities assigned (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Review the use of capabilites in applications running on your cluster. Where a namespace
|
||||
contains applicaions which do not require any Linux capabities to operate consider adding
|
||||
a PSP which forbids the admission of containers which do not drop all capabilities.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.11
|
||||
text: "Minimize the admission of Windows HostProcess containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers that have `.securityContext.windowsOptions.hostProcess` set to `true`.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.12
|
||||
text: "Minimize the admission of HostPath volumes (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers with `hostPath` volumes.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.13
|
||||
text: "Minimize the admission of containers which use HostPorts (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers which use `hostPort` sections.
|
||||
scored: false
|
||||
|
||||
- id: 5.3
|
||||
text: "Network Policies and CNI"
|
||||
checks:
|
||||
- id: 5.3.1
|
||||
text: "Ensure that the CNI in use supports NetworkPolicies (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
If the CNI plugin in use does not support network policies, consideration should be given to
|
||||
making use of a different plugin, or finding an alternate mechanism for restricting traffic
|
||||
in the Kubernetes cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.3.2
|
||||
text: "Ensure that all Namespaces have NetworkPolicies defined (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the documentation and create NetworkPolicy objects as you need them.
|
||||
scored: false
|
||||
|
||||
- id: 5.4
|
||||
text: "Secrets Management"
|
||||
checks:
|
||||
- id: 5.4.1
|
||||
text: "Prefer using Secrets as files over Secrets as environment variables (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
If possible, rewrite application code to read Secrets from mounted secret files, rather than
|
||||
from environment variables.
|
||||
scored: false
|
||||
|
||||
- id: 5.4.2
|
||||
text: "Consider external secret storage (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Refer to the Secrets management options offered by your cloud provider or a third-party
|
||||
secrets management solution.
|
||||
scored: false
|
||||
|
||||
- id: 5.5
|
||||
text: "Extensible Admission Control"
|
||||
checks:
|
||||
- id: 5.5.1
|
||||
text: "Configure Image Provenance using ImagePolicyWebhook admission controller (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and setup image provenance.
|
||||
scored: false
|
||||
|
||||
- id: 5.7
|
||||
text: "General Policies"
|
||||
checks:
|
||||
- id: 5.7.1
|
||||
text: "Create administrative boundaries between resources using namespaces (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the documentation and create namespaces for objects in your deployment as you need
|
||||
them.
|
||||
scored: false
|
||||
|
||||
- id: 5.7.2
|
||||
text: "Ensure that the seccomp profile is set to docker/default in your Pod definitions (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Use `securityContext` to enable the docker/default seccomp profile in your pod definitions.
|
||||
An example is as below:
|
||||
securityContext:
|
||||
seccompProfile:
|
||||
type: RuntimeDefault
|
||||
scored: false
|
||||
|
||||
- id: 5.7.3
|
||||
text: "Apply SecurityContext to your Pods and Containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and apply SecurityContexts to your Pods. For a
|
||||
suggested list of SecurityContexts, you may refer to the CIS Security Benchmark for Docker
|
||||
Containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.7.4
|
||||
text: "The default namespace should not be used (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Ensure that namespaces are created to allow for appropriate segregation of Kubernetes
|
||||
resources and that all new resources are created in a specific namespace.
|
||||
scored: false
|
||||
54
cfg/k3s-cis-1.7/config.yaml
Normal file
54
cfg/k3s-cis-1.7/config.yaml
Normal file
@@ -0,0 +1,54 @@
|
||||
---
|
||||
## Version-specific settings that override the values in cfg/config.yaml
|
||||
|
||||
master:
|
||||
components:
|
||||
- apiserver
|
||||
- kubelet
|
||||
- scheduler
|
||||
- controllermanager
|
||||
- etcd
|
||||
- policies
|
||||
|
||||
apiserver:
|
||||
bins:
|
||||
- containerd
|
||||
|
||||
kubelet:
|
||||
bins:
|
||||
- containerd
|
||||
defaultkubeconfig: /var/lib/rancher/k3s/agent/kubelet.kubeconfig
|
||||
defaultcafile: /var/lib/rancher/k3s/agent/client-ca.crt
|
||||
|
||||
scheduler:
|
||||
bins:
|
||||
- containerd
|
||||
|
||||
controllermanager:
|
||||
bins:
|
||||
- containerd
|
||||
|
||||
etcd:
|
||||
bins:
|
||||
- containerd
|
||||
datadirs:
|
||||
- /var/lib/rancher/k3s/server/db/etcd
|
||||
node:
|
||||
components:
|
||||
- kubelet
|
||||
- proxy
|
||||
|
||||
kubelet:
|
||||
bins:
|
||||
- containerd
|
||||
defaultkubeconfig: /var/lib/rancher/k3s/agent/kubelet.kubeconfig
|
||||
defaultcafile: /var/lib/rancher/k3s/agent/client-ca.crt
|
||||
|
||||
proxy:
|
||||
bins:
|
||||
- containerd
|
||||
defaultkubeconfig: /var/lib/rancher/k3s/agent/kubeproxy.kubeconfig
|
||||
|
||||
policies:
|
||||
components:
|
||||
- policies
|
||||
60
cfg/k3s-cis-1.7/controlplane.yaml
Normal file
60
cfg/k3s-cis-1.7/controlplane.yaml
Normal file
@@ -0,0 +1,60 @@
|
||||
---
|
||||
controls:
|
||||
version: "k3s-cis-1.7"
|
||||
id: 3
|
||||
text: "Control Plane Configuration"
|
||||
type: "controlplane"
|
||||
groups:
|
||||
- id: 3.1
|
||||
text: "Authentication and Authorization"
|
||||
checks:
|
||||
- id: 3.1.1
|
||||
text: "Client certificate authentication should not be used for users (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Alternative mechanisms provided by Kubernetes such as the use of OIDC should be
|
||||
implemented in place of client certificates.
|
||||
scored: false
|
||||
- id: 3.1.2
|
||||
text: "Service account token authentication should not be used for users (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Alternative mechanisms provided by Kubernetes such as the use of OIDC should be implemented
|
||||
in place of service account tokens.
|
||||
scored: false
|
||||
- id: 3.1.3
|
||||
text: "Bootstrap token authentication should not be used for users (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Alternative mechanisms provided by Kubernetes such as the use of OIDC should be implemented
|
||||
in place of bootstrap tokens.
|
||||
scored: false
|
||||
|
||||
- id: 3.2
|
||||
text: "Logging"
|
||||
checks:
|
||||
- id: 3.2.1
|
||||
text: "Ensure that a minimal audit policy is created (Manual)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kube-apiserver' | tail -n1 | grep 'audit-policy-file'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--audit-policy-file"
|
||||
set: true
|
||||
remediation: |
|
||||
Create an audit policy file for your cluster.
|
||||
scored: false
|
||||
|
||||
- id: 3.2.2
|
||||
text: "Ensure that the audit policy covers key security concerns (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Review the audit policy provided for the cluster and ensure that it covers
|
||||
at least the following areas,
|
||||
- Access to Secrets managed by the cluster. Care should be taken to only
|
||||
log Metadata for requests to Secrets, ConfigMaps, and TokenReviews, in
|
||||
order to avoid risk of logging sensitive data.
|
||||
- Modification of Pod and Deployment objects.
|
||||
- Use of `pods/exec`, `pods/portforward`, `pods/proxy` and `services/proxy`.
|
||||
For most requests, minimally logging at the Metadata level is recommended
|
||||
(the most basic level of logging).
|
||||
scored: false
|
||||
137
cfg/k3s-cis-1.7/etcd.yaml
Normal file
137
cfg/k3s-cis-1.7/etcd.yaml
Normal file
@@ -0,0 +1,137 @@
|
||||
---
|
||||
controls:
|
||||
version: "k3s-cis-1.7"
|
||||
id: 2
|
||||
text: "Etcd Node Configuration"
|
||||
type: "etcd"
|
||||
groups:
|
||||
- id: 2
|
||||
text: "Etcd Node Configuration"
|
||||
checks:
|
||||
- id: 2.1
|
||||
text: "Ensure that the --cert-file and --key-file arguments are set as appropriate (Automated)"
|
||||
audit: "grep -A 4 'client-transport-security' $etcdconf | grep -E 'cert-file|key-file'"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "cert-file"
|
||||
set: true
|
||||
- flag: "key-file"
|
||||
set: true
|
||||
remediation: |
|
||||
Follow the etcd service documentation and configure TLS encryption.
|
||||
Then, edit the etcd pod specification file /etc/kubernetes/manifests/etcd.yaml
|
||||
on the master node and set the below parameters.
|
||||
--cert-file=</path/to/ca-file>
|
||||
--key-file=</path/to/key-file>
|
||||
scored: true
|
||||
|
||||
- id: 2.2
|
||||
text: "Ensure that the --client-cert-auth argument is set to true (Automated)"
|
||||
audit: "grep -A 4 'client-transport-security' $etcdconf | grep 'client-cert-auth'"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--client-cert-auth"
|
||||
set: true
|
||||
- flag: "client-cert-auth"
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
set: true
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and set the below parameter.
|
||||
--client-cert-auth="true"
|
||||
scored: true
|
||||
|
||||
- id: 2.3
|
||||
text: "Ensure that the --auto-tls argument is not set to true (Automated)"
|
||||
audit: "if grep -q '^auto-tls' $etcdconf;then grep '^auto-tls' $etcdconf;else echo 'notset';fi"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--auto-tls"
|
||||
set: false
|
||||
- flag: "--auto-tls"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and either remove the --auto-tls parameter or set it to false.
|
||||
--auto-tls=false
|
||||
scored: true
|
||||
|
||||
- id: 2.4
|
||||
text: "Ensure that the --peer-cert-file and --peer-key-file arguments are set as appropriate (Automated)"
|
||||
audit: "grep -A 4 'peer-transport-security' $etcdconf | grep -E 'cert-file|key-file'"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "cert-file"
|
||||
set: true
|
||||
- flag: "key-file"
|
||||
set: true
|
||||
remediation: |
|
||||
Follow the etcd service documentation and configure peer TLS encryption as appropriate
|
||||
for your etcd cluster.
|
||||
Then, edit the etcd pod specification file $etcdconf on the
|
||||
master node and set the below parameters.
|
||||
--peer-client-file=</path/to/peer-cert-file>
|
||||
--peer-key-file=</path/to/peer-key-file>
|
||||
scored: true
|
||||
|
||||
- id: 2.5
|
||||
text: "Ensure that the --peer-client-cert-auth argument is set to true (Automated)"
|
||||
audit: "grep -A 4 'peer-transport-security' $etcdconf | grep 'client-cert-auth'"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--client-cert-auth"
|
||||
set: true
|
||||
- flag: "client-cert-auth"
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
set: true
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and set the below parameter.
|
||||
--peer-client-cert-auth=true
|
||||
scored: true
|
||||
|
||||
- id: 2.6
|
||||
text: "Ensure that the --peer-auto-tls argument is not set to true (Automated)"
|
||||
audit: "if grep -q '^peer-auto-tls' $etcdconf;then grep '^peer-auto-tls' $etcdconf;else echo 'notset';fi"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--peer-auto-tls"
|
||||
set: false
|
||||
- flag: "--peer-auto-tls"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
set: true
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and either remove the --peer-auto-tls parameter or set it to false.
|
||||
--peer-auto-tls=false
|
||||
scored: true
|
||||
|
||||
- id: 2.7
|
||||
text: "Ensure that a unique Certificate Authority is used for etcd (Automated)"
|
||||
audit: "if grep -q 'trusted-ca-file' $etcdconf;then grep 'trusted-ca-file' $etcdconf;else echo 'notset';fi"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "trusted-ca-file"
|
||||
set: true
|
||||
remediation: |
|
||||
[Manual test]
|
||||
Follow the etcd documentation and create a dedicated certificate authority setup for the
|
||||
etcd service.
|
||||
Then, edit the etcd pod specification file $etcdconf on the
|
||||
master node and set the below parameter.
|
||||
--trusted-ca-file=</path/to/ca-file>
|
||||
scored: false
|
||||
1000
cfg/k3s-cis-1.7/master.yaml
Normal file
1000
cfg/k3s-cis-1.7/master.yaml
Normal file
File diff suppressed because it is too large
Load Diff
454
cfg/k3s-cis-1.7/node.yaml
Normal file
454
cfg/k3s-cis-1.7/node.yaml
Normal file
@@ -0,0 +1,454 @@
|
||||
---
|
||||
controls:
|
||||
version: "k3s-cis-1.7"
|
||||
id: 4
|
||||
text: "Worker Node Security Configuration"
|
||||
type: "node"
|
||||
groups:
|
||||
- id: 4.1
|
||||
text: "Worker Node Configuration Files"
|
||||
checks:
|
||||
- id: 4.1.1
|
||||
text: "Ensure that the kubelet service file permissions are set to 600 or more restrictive (Automated)"
|
||||
type: "skip"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletsvc; then stat -c permissions=%a $kubeletsvc; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example, chmod 600 $kubeletsvc
|
||||
Not Applicable - All configuration is passed in as arguments at container run time.
|
||||
scored: true
|
||||
|
||||
- id: 4.1.2
|
||||
text: "Ensure that the kubelet service file ownership is set to root:root (Automated)"
|
||||
type: "skip"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletsvc; then stat -c %U:%G $kubeletsvc; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chown root:root $kubeletsvc
|
||||
Not Applicable.
|
||||
All configuration is passed in as arguments at container run time.
|
||||
scored: true
|
||||
|
||||
- id: 4.1.3
|
||||
text: "If proxy kubeconfig file exists ensure permissions are set to 600 or more restrictive (Manual)"
|
||||
audit: 'stat -c %a /var/lib/rancher/k3s/agent/kubeproxy.kubeconfig'
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chmod 600 $proxykubeconfig
|
||||
scored: false
|
||||
|
||||
- id: 4.1.4
|
||||
text: "If proxy kubeconfig file exists ensure ownership is set to root:root (Manual)"
|
||||
audit: '/bin/sh -c ''if test -e /var/lib/rancher/k3s/agent/kubeproxy.kubeconfig; then stat -c %U:%G /var/lib/rancher/k3s/agent/kubeproxy.kubeconfig; fi'' '
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example, chown root:root $proxykubeconfig
|
||||
scored: false
|
||||
|
||||
- id: 4.1.5
|
||||
text: "Ensure that the --kubeconfig kubelet.conf file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletkubeconfig; then stat -c permissions=%a $kubeletkubeconfig; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chmod 600 $kubeletkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 4.1.6
|
||||
text: "Ensure that the --kubeconfig kubelet.conf file ownership is set to root:root (Automated)"
|
||||
audit: 'stat -c %U:%G /var/lib/rancher/k3s/agent/kubelet.kubeconfig'
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chown root:root $kubeletkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 4.1.7
|
||||
text: "Ensure that the certificate authorities file permissions are set to 600 or more restrictive (Manual)"
|
||||
audit: "stat -c %a /var/lib/rancher/k3s/server/tls/server-ca.crt"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the following command to modify the file permissions of the
|
||||
--client-ca-file chmod 600 <filename>
|
||||
scored: false
|
||||
|
||||
- id: 4.1.8
|
||||
text: "Ensure that the client certificate authorities file ownership is set to root:root (Manual)"
|
||||
audit: "stat -c %U:%G /var/lib/rancher/k3s/server/tls/client-ca.crt"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Run the following command to modify the ownership of the --client-ca-file.
|
||||
chown root:root <filename>
|
||||
scored: false
|
||||
|
||||
- id: 4.1.9
|
||||
text: "Ensure that the kubelet --config configuration file has permissions set to 600 or more restrictive (Automated)"
|
||||
type: "skip"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletconf; then stat -c permissions=%a $kubeletconf; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the following command (using the config file location identified in the Audit step)
|
||||
chmod 600 $kubeletconf
|
||||
scored: true
|
||||
|
||||
- id: 4.1.10
|
||||
text: "Ensure that the kubelet --config configuration file ownership is set to root:root (Automated)"
|
||||
type: "skip"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletconf; then stat -c %U:%G $kubeletconf; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Run the following command (using the config file location identified in the Audit step)
|
||||
chown root:root $kubeletconf
|
||||
Not Applicable.
|
||||
All configuration is passed in as arguments at container run time.
|
||||
scored: true
|
||||
|
||||
- id: 4.2
|
||||
text: "Kubelet"
|
||||
checks:
|
||||
- id: 4.2.1
|
||||
text: "Ensure that the --anonymous-auth argument is set to false (Automated)"
|
||||
audit: '/bin/sh -c ''if test $(journalctl -D /var/log/journal -u k3s | grep "Running kube-apiserver" | wc -l) -gt 0; then journalctl -D /var/log/journal -u k3s | grep "Running kube-apiserver" | tail -n1 | grep "anonymous-auth" | grep -v grep; else echo "--anonymous-auth=false"; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--anonymous-auth"
|
||||
path: '{.authentication.anonymous.enabled}'
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `authentication: anonymous: enabled` to
|
||||
`false`.
|
||||
If using executable arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
`--anonymous-auth=false`
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.2
|
||||
text: "Ensure that the --authorization-mode argument is not set to AlwaysAllow (Automated)"
|
||||
audit: '/bin/sh -c ''if test $(journalctl -D /var/log/journal -u k3s | grep "Running kube-apiserver" | wc -l) -gt 0; then journalctl -D /var/log/journal -u k3s | grep "Running kube-apiserver" | tail -n1 | grep "authorization-mode" | grep -v grep; else echo "--authorization-mode=Webhook"; fi'' '
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --authorization-mode
|
||||
path: '{.authorization.mode}'
|
||||
compare:
|
||||
op: nothave
|
||||
value: AlwaysAllow
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `authorization.mode` to Webhook. If
|
||||
using executable arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_AUTHZ_ARGS variable.
|
||||
--authorization-mode=Webhook
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.3
|
||||
text: "Ensure that the --client-ca-file argument is set as appropriate (Automated)"
|
||||
audit: '/bin/sh -c ''if test $(journalctl -D /var/log/journal -u k3s | grep "Running kube-apiserver" | wc -l) -gt 0; then journalctl -D /var/log/journal -u k3s | grep "Running kube-apiserver" | tail -n1 | grep "client-ca-file" | grep -v grep; else echo "--client-ca-file=/var/lib/rancher/k3s/server/tls/request-header-ca.crt"; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --client-ca-file
|
||||
path: '{.authentication.x509.clientCAFile}'
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `authentication.x509.clientCAFile` to
|
||||
the location of the client CA file.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_AUTHZ_ARGS variable.
|
||||
--client-ca-file=<path/to/client-ca-file>
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.4
|
||||
text: "Verify that the --read-only-port argument is set to 0 (Manual)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kubelet' | tail -n1 | grep 'read-only-port' "
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--read-only-port"
|
||||
path: '{.readOnlyPort}'
|
||||
compare:
|
||||
op: eq
|
||||
value: 0
|
||||
- flag: "--read-only-port"
|
||||
path: '{.readOnlyPort}'
|
||||
set: false
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `readOnlyPort` to 0.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
--read-only-port=0
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.5
|
||||
text: "Ensure that the --streaming-connection-idle-timeout argument is not set to 0 (Manual)"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kubelet' | tail -n1 | grep 'streaming-connection-idle-timeout'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --streaming-connection-idle-timeout
|
||||
path: '{.streamingConnectionIdleTimeout}'
|
||||
compare:
|
||||
op: noteq
|
||||
value: 0
|
||||
- flag: --streaming-connection-idle-timeout
|
||||
path: '{.streamingConnectionIdleTimeout}'
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `streamingConnectionIdleTimeout` to a
|
||||
value other than 0.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
--streaming-connection-idle-timeout=5m
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.6
|
||||
text: "Ensure that the --make-iptables-util-chains argument is set to true (Automated)"
|
||||
type: "skip"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kubelet' | tail -n1 | grep 'make-iptables-util-chains'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --make-iptables-util-chains
|
||||
path: '{.makeIPTablesUtilChains}'
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
- flag: --make-iptables-util-chains
|
||||
path: '{.makeIPTablesUtilChains}'
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `makeIPTablesUtilChains` to `true`.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
remove the --make-iptables-util-chains argument from the
|
||||
KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
Permissive.
|
||||
scored: true
|
||||
|
||||
- id: 4.2.7
|
||||
text: "Ensure that the --hostname-override argument is not set (Manual)"
|
||||
# This is one of those properties that can only be set as a command line argument.
|
||||
# To check if the property is set as expected, we need to parse the kubelet command
|
||||
# instead reading the Kubelet Configuration file.
|
||||
type: "skip"
|
||||
audit: "/bin/ps -fC $kubeletbin "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --hostname-override
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the kubelet service file $kubeletsvc
|
||||
on each worker node and remove the --hostname-override argument from the
|
||||
KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
Not Applicable.
|
||||
scored: false
|
||||
|
||||
- id: 4.2.8
|
||||
text: "Ensure that the eventRecordQPS argument is set to a level which ensures appropriate event capture (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --event-qps
|
||||
path: '{.eventRecordQPS}'
|
||||
compare:
|
||||
op: gte
|
||||
value: 0
|
||||
- flag: --event-qps
|
||||
path: '{.eventRecordQPS}'
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `eventRecordQPS` to an appropriate level.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.9
|
||||
text: "Ensure that the --tls-cert-file and --tls-private-key-file arguments are set as appropriate (Manual)"
|
||||
type: "skip"
|
||||
audit: "journalctl -D /var/log/journal -u k3s | grep 'Running kubelet' | tail -n1"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --tls-cert-file
|
||||
path: '/var/lib/rancher/k3s/agent/serving-kubelet.crt'
|
||||
- flag: --tls-private-key-file
|
||||
path: '/var/lib/rancher/k3s/agent/serving-kubelet.key'
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `tlsCertFile` to the location
|
||||
of the certificate file to use to identify this Kubelet, and `tlsPrivateKeyFile`
|
||||
to the location of the corresponding private key file.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameters in KUBELET_CERTIFICATE_ARGS variable.
|
||||
--tls-cert-file=<path/to/tls-certificate-file>
|
||||
--tls-private-key-file=<path/to/tls-key-file>
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
Permissive - When generating serving certificates, functionality could break in conjunction with hostname overrides which are required for certain cloud providers.
|
||||
scored: false
|
||||
|
||||
- id: 4.2.10
|
||||
text: "Ensure that the --rotate-certificates argument is not set to false (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --rotate-certificates
|
||||
path: '{.rotateCertificates}'
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
- flag: --rotate-certificates
|
||||
path: '{.rotateCertificates}'
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to add the line `rotateCertificates` to `true` or
|
||||
remove it altogether to use the default value.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
remove --rotate-certificates=false argument from the KUBELET_CERTIFICATE_ARGS
|
||||
variable.
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.11
|
||||
text: "Verify that the RotateKubeletServerCertificate argument is set to true (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: RotateKubeletServerCertificate
|
||||
path: '{.featureGates.RotateKubeletServerCertificate}'
|
||||
compare:
|
||||
op: nothave
|
||||
value: false
|
||||
- flag: RotateKubeletServerCertificate
|
||||
path: '{.featureGates.RotateKubeletServerCertificate}'
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the kubelet service file $kubeletsvc
|
||||
on each worker node and set the below parameter in KUBELET_CERTIFICATE_ARGS variable.
|
||||
--feature-gates=RotateKubeletServerCertificate=true
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
Not Applicable.
|
||||
scored: false
|
||||
|
||||
- id: 4.2.12
|
||||
text: "Ensure that the Kubelet only makes use of Strong Cryptographic Ciphers (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --tls-cipher-suites
|
||||
path: '{range .tlsCipherSuites[:]}{}{'',''}{end}'
|
||||
compare:
|
||||
op: valid_elements
|
||||
value: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `TLSCipherSuites` to
|
||||
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
|
||||
or to a subset of these values.
|
||||
If using executable arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the --tls-cipher-suites parameter as follows, or to a subset of these values.
|
||||
--tls-cipher-suites=TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.13
|
||||
text: "Ensure that a limit is set on pod PIDs (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --pod-max-pids
|
||||
path: '{.podPidsLimit}'
|
||||
remediation: |
|
||||
Decide on an appropriate level for this parameter and set it,
|
||||
either via the --pod-max-pids command line parameter or the PodPidsLimit configuration file setting.
|
||||
scored: false
|
||||
318
cfg/k3s-cis-1.7/policies.yaml
Normal file
318
cfg/k3s-cis-1.7/policies.yaml
Normal file
@@ -0,0 +1,318 @@
|
||||
---
|
||||
controls:
|
||||
version: "k3s-cis-1.7"
|
||||
id: 5
|
||||
text: "Kubernetes Policies"
|
||||
type: "policies"
|
||||
groups:
|
||||
- id: 5.1
|
||||
text: "RBAC and Service Accounts"
|
||||
checks:
|
||||
- id: 5.1.1
|
||||
text: "Ensure that the cluster-admin role is only used where required (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Identify all clusterrolebindings to the cluster-admin role. Check if they are used and
|
||||
if they need this role or if they could use a role with fewer privileges.
|
||||
Where possible, first bind users to a lower privileged role and then remove the
|
||||
clusterrolebinding to the cluster-admin role :
|
||||
kubectl delete clusterrolebinding [name]
|
||||
scored: false
|
||||
|
||||
- id: 5.1.2
|
||||
text: "Minimize access to secrets (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove get, list and watch access to Secret objects in the cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.3
|
||||
text: "Minimize wildcard use in Roles and ClusterRoles (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible replace any use of wildcards in clusterroles and roles with specific
|
||||
objects or actions.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.4
|
||||
text: "Minimize access to create pods (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove create access to pod objects in the cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.5
|
||||
text: "Ensure that default service accounts are not actively used. (Manual)"
|
||||
type: "skip"
|
||||
audit: check_for_default_sa.sh
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "true"
|
||||
compare:
|
||||
op: eq
|
||||
value: "true"
|
||||
set: true
|
||||
remediation: |
|
||||
Create explicit service accounts wherever a Kubernetes workload requires specific access
|
||||
to the Kubernetes API server.
|
||||
Modify the configuration of each default service account to include this value
|
||||
automountServiceAccountToken: false
|
||||
Permissive - Kubernetes provides default service accounts to be used.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.6
|
||||
text: "Ensure that Service Account Tokens are only mounted where necessary (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Modify the definition of pods and service accounts which do not need to mount service
|
||||
account tokens to disable it.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.7
|
||||
text: "Avoid use of system:masters group (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Remove the system:masters group from all users in the cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.8
|
||||
text: "Limit use of the Bind, Impersonate and Escalate permissions in the Kubernetes cluster (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove the impersonate, bind and escalate rights from subjects.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.9
|
||||
text: "Minimize access to create persistent volumes (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove create access to PersistentVolume objects in the cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.10
|
||||
text: "Minimize access to the proxy sub-resource of nodes (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove access to the proxy sub-resource of node objects.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.11
|
||||
text: "Minimize access to the approval sub-resource of certificatesigningrequests objects (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove access to the approval sub-resource of certificatesigningrequest objects.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.12
|
||||
text: "Minimize access to webhook configuration objects (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove access to the validatingwebhookconfigurations or mutatingwebhookconfigurations objects
|
||||
scored: false
|
||||
|
||||
- id: 5.1.13
|
||||
text: "Minimize access to the service account token creation (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove access to the token sub-resource of serviceaccount objects.
|
||||
scored: false
|
||||
|
||||
- id: 5.2
|
||||
text: "Pod Security Standards"
|
||||
checks:
|
||||
- id: 5.2.1
|
||||
text: "Ensure that the cluster has at least one active policy control mechanism in place (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Ensure that either Pod Security Admission or an external policy control system is in place
|
||||
for every namespace which contains user workloads.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.2
|
||||
text: "Minimize the admission of privileged containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of privileged containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.3
|
||||
text: "Minimize the admission of containers wishing to share the host process ID namespace (Automated)"
|
||||
type: "skip"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of `hostPID` containers.
|
||||
Permissive - Enabling Pod Security Policy can cause applications to unexpectedly fail.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.4
|
||||
text: "Minimize the admission of containers wishing to share the host IPC namespace (Automated)"
|
||||
type: "skip"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of `hostIPC` containers.
|
||||
Permissive - Enabling Pod Security Policy can cause applications to unexpectedly fail.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.5
|
||||
text: "Minimize the admission of containers wishing to share the host network namespace (Automated)"
|
||||
type: "skip"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of `hostNetwork` containers.
|
||||
Permissive - Enabling Pod Security Policy can cause applications to unexpectedly fail.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.6
|
||||
text: "Minimize the admission of containers with allowPrivilegeEscalation (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers with `.spec.allowPrivilegeEscalation` set to `true`.
|
||||
scored: true
|
||||
|
||||
- id: 5.2.7
|
||||
text: "Minimize the admission of root containers (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Create a policy for each namespace in the cluster, ensuring that either `MustRunAsNonRoot`
|
||||
or `MustRunAs` with the range of UIDs not including 0, is set.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.8
|
||||
text: "Minimize the admission of containers with the NET_RAW capability (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers with the `NET_RAW` capability.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.9
|
||||
text: "Minimize the admission of containers with added capabilities (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Ensure that `allowedCapabilities` is not present in policies for the cluster unless
|
||||
it is set to an empty array.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.10
|
||||
text: "Minimize the admission of containers with capabilities assigned (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Review the use of capabilites in applications running on your cluster. Where a namespace
|
||||
contains applicaions which do not require any Linux capabities to operate consider adding
|
||||
a PSP which forbids the admission of containers which do not drop all capabilities.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.11
|
||||
text: "Minimize the admission of Windows HostProcess containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers that have `.securityContext.windowsOptions.hostProcess` set to `true`.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.12
|
||||
text: "Minimize the admission of HostPath volumes (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers with `hostPath` volumes.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.13
|
||||
text: "Minimize the admission of containers which use HostPorts (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers which use `hostPort` sections.
|
||||
scored: false
|
||||
|
||||
- id: 5.3
|
||||
text: "Network Policies and CNI"
|
||||
checks:
|
||||
- id: 5.3.1
|
||||
text: "Ensure that the CNI in use supports NetworkPolicies (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
If the CNI plugin in use does not support network policies, consideration should be given to
|
||||
making use of a different plugin, or finding an alternate mechanism for restricting traffic
|
||||
in the Kubernetes cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.3.2
|
||||
text: "Ensure that all Namespaces have NetworkPolicies defined (Manual)"
|
||||
type: "skip"
|
||||
remediation: |
|
||||
Follow the documentation and create NetworkPolicy objects as you need them.
|
||||
Permissive - Enabling Network Policies can prevent certain applications from communicating with each other.
|
||||
scored: false
|
||||
|
||||
- id: 5.4
|
||||
text: "Secrets Management"
|
||||
checks:
|
||||
- id: 5.4.1
|
||||
text: "Prefer using Secrets as files over Secrets as environment variables (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
If possible, rewrite application code to read Secrets from mounted secret files, rather than
|
||||
from environment variables.
|
||||
scored: false
|
||||
|
||||
- id: 5.4.2
|
||||
text: "Consider external secret storage (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Refer to the Secrets management options offered by your cloud provider or a third-party
|
||||
secrets management solution.
|
||||
scored: false
|
||||
|
||||
- id: 5.5
|
||||
text: "Extensible Admission Control"
|
||||
checks:
|
||||
- id: 5.5.1
|
||||
text: "Configure Image Provenance using ImagePolicyWebhook admission controller (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and setup image provenance.
|
||||
scored: false
|
||||
|
||||
- id: 5.7
|
||||
text: "General Policies"
|
||||
checks:
|
||||
- id: 5.7.1
|
||||
text: "Create administrative boundaries between resources using namespaces (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the documentation and create namespaces for objects in your deployment as you need
|
||||
them.
|
||||
scored: false
|
||||
|
||||
- id: 5.7.2
|
||||
text: "Ensure that the seccomp profile is set to docker/default in your Pod definitions (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Use `securityContext` to enable the docker/default seccomp profile in your pod definitions.
|
||||
An example is as below:
|
||||
securityContext:
|
||||
seccompProfile:
|
||||
type: RuntimeDefault
|
||||
scored: false
|
||||
|
||||
- id: 5.7.3
|
||||
text: "Apply SecurityContext to your Pods and Containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and apply SecurityContexts to your Pods. For a
|
||||
suggested list of SecurityContexts, you may refer to the CIS Security Benchmark for Docker
|
||||
Containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.7.4
|
||||
text: "The default namespace should not be used (Manual)"
|
||||
type: "skip"
|
||||
remediation: |
|
||||
Ensure that namespaces are created to allow for appropriate segregation of Kubernetes
|
||||
resources and that all new resources are created in a specific namespace.
|
||||
Permissive - Kubernetes provides a default namespace.
|
||||
scored: false
|
||||
@@ -11,16 +11,17 @@ groups:
|
||||
- id: 2.1
|
||||
text: "Ensure that the --cert-file and --key-file arguments are set as appropriate (Manual)"
|
||||
audit: |
|
||||
# For --cert-file
|
||||
for i in $(oc get pods -oname -n openshift-etcd)
|
||||
do
|
||||
oc exec -n openshift-etcd -c etcd $i -- ps -o command= -C etcd | sed 's/.*\(--cert-file=[^ ]*\).*/\1/'
|
||||
done 2>/dev/null
|
||||
# For --key-file
|
||||
for i in $(oc get pods -oname -n openshift-etcd)
|
||||
do
|
||||
oc exec -n openshift-etcd -c etcd $i -- ps -o command= -C etcd | sed 's/.*\(--key-file=[^ ]*\).*/\1/'
|
||||
done 2>/dev/null
|
||||
# Get the node name where the pod is running
|
||||
NODE_NAME=$(oc get pod "$HOSTNAME" -o=jsonpath='{.spec.nodeName}')
|
||||
# Get the pod name in the openshift-etcd namespace
|
||||
POD_NAME=$(oc get pods -n openshift-etcd -l app=etcd --field-selector spec.nodeName="$NODE_NAME" -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)
|
||||
if [ -z "$POD_NAME" ]; then
|
||||
echo "No matching file found on the current node."
|
||||
else
|
||||
# Execute the stat command
|
||||
oc exec -n openshift-etcd -c etcd "$POD_NAME" -- ps -o command= -C etcd | sed 's/.*\(--cert-file=[^ ]*\).*/\1/'
|
||||
oc exec -n openshift-etcd -c etcd "$POD_NAME" -- ps -o command= -C etcd | sed 's/.*\(--key-file=[^ ]*\).*/\1/'
|
||||
fi
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
@@ -36,10 +37,16 @@ groups:
|
||||
- id: 2.2
|
||||
text: "Ensure that the --client-cert-auth argument is set to true (Manual)"
|
||||
audit: |
|
||||
for i in $(oc get pods -oname -n openshift-etcd)
|
||||
do
|
||||
oc exec -n openshift-etcd -c etcd $i -- ps -o command= -C etcd | sed 's/.*\(--client-cert-auth=[^ ]*\).*/\1/'
|
||||
done 2>/dev/null
|
||||
# Get the node name where the pod is running
|
||||
NODE_NAME=$(oc get pod "$HOSTNAME" -o=jsonpath='{.spec.nodeName}')
|
||||
# Get the pod name in the openshift-etcd namespace
|
||||
POD_NAME=$(oc get pods -n openshift-etcd -l app=etcd --field-selector spec.nodeName="$NODE_NAME" -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)
|
||||
if [ -z "$POD_NAME" ]; then
|
||||
echo "No matching file found on the current node."
|
||||
else
|
||||
# Execute the stat command
|
||||
oc exec -n openshift-etcd -c etcd "$POD_NAME" -- ps -o command= -C etcd | sed 's/.*\(--client-cert-auth=[^ ]*\).*/\1/'
|
||||
fi
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
@@ -55,10 +62,16 @@ groups:
|
||||
text: "Ensure that the --auto-tls argument is not set to true (Manual)"
|
||||
audit: |
|
||||
# Returns 0 if found, 1 if not found
|
||||
for i in $(oc get pods -oname -n openshift-etcd)
|
||||
do
|
||||
oc exec -n openshift-etcd -c etcd $i -- ps -o command= -C etcd | grep -- --auto-tls=true 2>/dev/null ; echo exit_code=$?
|
||||
done 2>/dev/null
|
||||
# Get the node name where the pod is running
|
||||
NODE_NAME=$(oc get pod "$HOSTNAME" -o=jsonpath='{.spec.nodeName}')
|
||||
# Get the pod name in the openshift-etcd namespace
|
||||
POD_NAME=$(oc get pods -n openshift-etcd -l app=etcd --field-selector spec.nodeName="$NODE_NAME" -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)
|
||||
if [ -z "$POD_NAME" ]; then
|
||||
echo "No matching file found on the current node."
|
||||
else
|
||||
# Execute the stat command
|
||||
oc exec -n openshift-etcd -c etcd "$POD_NAME" -- ps -o command= -C etcd | grep -- --auto-tls=true 2>/dev/null ; echo exit_code=$?
|
||||
fi
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
@@ -67,22 +80,23 @@ groups:
|
||||
op: eq
|
||||
value: "1"
|
||||
remediation: |
|
||||
This setting is managed by the cluster etcd operator. No remediation required.e
|
||||
This setting is managed by the cluster etcd operator. No remediation required.
|
||||
scored: false
|
||||
|
||||
- id: 2.4
|
||||
text: "Ensure that the --peer-cert-file and --peer-key-file arguments are set as appropriate (Manual)"
|
||||
audit: |
|
||||
# For --peer-cert-file
|
||||
for i in $(oc get pods -oname -n openshift-etcd)
|
||||
do
|
||||
oc exec -n openshift-etcd -c etcd $i -- ps -o command= -C etcd | sed 's/.*\(--peer-cert-file=[^ ]*\).*/\1/'
|
||||
done 2>/dev/null
|
||||
# For --peer-key-file
|
||||
for i in $(oc get pods -oname -n openshift-etcd)
|
||||
do
|
||||
oc exec -n openshift-etcd -c etcd $i -- ps -o command= -C etcd | sed 's/.*\(--peer-key-file=[^ ]*\).*/\1/'
|
||||
done 2>/dev/null
|
||||
# Get the node name where the pod is running
|
||||
NODE_NAME=$(oc get pod "$HOSTNAME" -o=jsonpath='{.spec.nodeName}')
|
||||
# Get the pod name in the openshift-etcd namespace
|
||||
POD_NAME=$(oc get pods -n openshift-etcd -l app=etcd --field-selector spec.nodeName="$NODE_NAME" -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)
|
||||
if [ -z "$POD_NAME" ]; then
|
||||
echo "No matching file found on the current node."
|
||||
else
|
||||
# Execute the stat command
|
||||
oc exec -n openshift-etcd -c etcd "$POD_NAME" -- ps -o command= -C etcd | sed 's/.*\(--peer-cert-file=[^ ]*\).*/\1/'
|
||||
oc exec -n openshift-etcd -c etcd "$POD_NAME" -- ps -o command= -C etcd | sed 's/.*\(--peer-key-file=[^ ]*\).*/\1/'
|
||||
fi
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
@@ -97,10 +111,16 @@ groups:
|
||||
- id: 2.5
|
||||
text: "Ensure that the --peer-client-cert-auth argument is set to true (Manual)"
|
||||
audit: |
|
||||
for i in $(oc get pods -oname -n openshift-etcd)
|
||||
do
|
||||
oc exec -n openshift-etcd -c etcd $i -- ps -o command= -C etcd | sed 's/.*\(--peer-client-cert-auth=[^ ]*\).*/\1/'
|
||||
done 2>/dev/null
|
||||
# Get the node name where the pod is running
|
||||
NODE_NAME=$(oc get pod "$HOSTNAME" -o=jsonpath='{.spec.nodeName}')
|
||||
# Get the pod name in the openshift-etcd namespace
|
||||
POD_NAME=$(oc get pods -n openshift-etcd -l app=etcd --field-selector spec.nodeName="$NODE_NAME" -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)
|
||||
if [ -z "$POD_NAME" ]; then
|
||||
echo "No matching file found on the current node."
|
||||
else
|
||||
# Execute the stat command
|
||||
oc exec -n openshift-etcd -c etcd "$POD_NAME" -- ps -o command= -C etcd | sed 's/.*\(--peer-client-cert-auth=[^ ]*\).*/\1/'
|
||||
fi
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
@@ -116,10 +136,16 @@ groups:
|
||||
text: "Ensure that the --peer-auto-tls argument is not set to true (Manual)"
|
||||
audit: |
|
||||
# Returns 0 if found, 1 if not found
|
||||
for i in $(oc get pods -oname -n openshift-etcd)
|
||||
do
|
||||
oc exec -n openshift-etcd -c etcd $i -- ps -o command= -C etcd | grep -- --peer-auto-tls=true 2>/dev/null ; echo exit_code=$?
|
||||
done 2>/dev/null
|
||||
# Get the node name where the pod is running
|
||||
NODE_NAME=$(oc get pod "$HOSTNAME" -o=jsonpath='{.spec.nodeName}')
|
||||
# Get the pod name in the openshift-etcd namespace
|
||||
POD_NAME=$(oc get pods -n openshift-etcd -l app=etcd --field-selector spec.nodeName="$NODE_NAME" -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)
|
||||
if [ -z "$POD_NAME" ]; then
|
||||
echo "No matching file found on the current node."
|
||||
else
|
||||
# Execute the stat command
|
||||
oc exec -n openshift-etcd -c etcd "$POD_NAME" -- ps -o command= -C etcd | grep -- --peer-auto-tls=true 2>/dev/null ; echo exit_code=$?
|
||||
fi
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
@@ -134,14 +160,17 @@ groups:
|
||||
- id: 2.7
|
||||
text: "Ensure that a unique Certificate Authority is used for etcd (Manual)"
|
||||
audit: |
|
||||
for i in $(oc get pods -oname -n openshift-etcd)
|
||||
do
|
||||
oc exec -n openshift-etcd -c etcd $i -- ps -o command= -C etcd | sed 's/.*\(--trusted-ca-file=[^ ]*\).*/\1/'
|
||||
done 2>/dev/null
|
||||
for i in $(oc get pods -oname -n openshift-etcd)
|
||||
do
|
||||
oc exec -n openshift-etcd -c etcd $i -- ps -o command= -C etcd | sed 's/.*\(--peer-trusted-ca-file=[^ ]*\).*/\1/'
|
||||
done 2>/dev/null
|
||||
# Get the node name where the pod is running
|
||||
NODE_NAME=$(oc get pod "$HOSTNAME" -o=jsonpath='{.spec.nodeName}')
|
||||
# Get the pod name in the openshift-etcd namespace
|
||||
POD_NAME=$(oc get pods -n openshift-etcd -l app=etcd --field-selector spec.nodeName="$NODE_NAME" -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)
|
||||
if [ -z "$POD_NAME" ]; then
|
||||
echo "No matching file found on the current node."
|
||||
else
|
||||
# Execute the stat command
|
||||
oc exec -n openshift-etcd -c etcd "$POD_NAME" -- ps -o command= -C etcd | sed 's/.*\(--trusted-ca-file=[^ ]*\).*/\1/'
|
||||
oc exec -n openshift-etcd -c etcd "$POD_NAME" -- ps -o command= -C etcd | sed 's/.*\(--peer-trusted-ca-file=[^ ]*\).*/\1/'
|
||||
fi
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
|
||||
@@ -11,10 +11,18 @@ groups:
|
||||
- id: 1.1.1
|
||||
text: "Ensure that the API server pod specification file permissions are set to 644 or more restrictive (Manual)"
|
||||
audit: |
|
||||
for i in $( oc get pods -n openshift-kube-apiserver -l app=openshift-kube-apiserver -o name )
|
||||
do
|
||||
oc exec -n openshift-kube-apiserver $i -- stat -c "$i %n permissions=%a" /etc/kubernetes/static-pod-resources/kube-apiserver-pod.yaml;
|
||||
done 2>/dev/null
|
||||
# Get the node name where the pod is running
|
||||
NODE_NAME=$(oc get pod "$HOSTNAME" -o=jsonpath='{.spec.nodeName}')
|
||||
|
||||
# Get the pod name in the openshift-kube-apiserver namespace
|
||||
POD_NAME=$(oc get pods -n openshift-kube-apiserver -l app=openshift-kube-apiserver --field-selector spec.nodeName="$NODE_NAME" -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)
|
||||
|
||||
if [ -z "$POD_NAME" ]; then
|
||||
echo "No matching pods found on the current node."
|
||||
else
|
||||
# Execute the stat command
|
||||
oc exec -n openshift-kube-apiserver "$POD_NAME" -- stat -c "$POD_NAME %n permissions=%a" /etc/kubernetes/static-pod-resources/kube-apiserver-pod.yaml
|
||||
fi
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
@@ -29,11 +37,18 @@ groups:
|
||||
- id: 1.1.2
|
||||
text: "Ensure that the API server pod specification file ownership is set to root:root (Manual)"
|
||||
audit: |
|
||||
for i in $( oc get pods -n openshift-kube-apiserver -l app=openshift-kube-apiserver -o name )
|
||||
do
|
||||
oc exec -n openshift-kube-apiserver $i -- \
|
||||
stat -c "$i %n %U:%G" /etc/kubernetes/static-pod-resources/kube-apiserver-pod.yaml
|
||||
done 2>/dev/null
|
||||
# Get the node name where the pod is running
|
||||
NODE_NAME=$(oc get pod "$HOSTNAME" -o=jsonpath='{.spec.nodeName}')
|
||||
|
||||
# Get the pod name in the openshift-kube-apiserver namespace
|
||||
POD_NAME=$(oc get pods -n openshift-kube-apiserver -l app=openshift-kube-apiserver --field-selector spec.nodeName="$NODE_NAME" -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)
|
||||
|
||||
if [ -z "$POD_NAME" ]; then
|
||||
echo "No matching pods found on the current node."
|
||||
else
|
||||
# Execute the stat command
|
||||
oc exec -n openshift-kube-apiserver "$POD_NAME" -- stat -c "$POD_NAME %n %U:%G" /etc/kubernetes/static-pod-resources/kube-apiserver-pod.yaml
|
||||
fi
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
@@ -45,10 +60,18 @@ groups:
|
||||
- id: 1.1.3
|
||||
text: "Ensure that the controller manager pod specification file permissions are set to 644 or more restrictive (Manual)"
|
||||
audit: |
|
||||
for i in $( oc get pods -n openshift-kube-controller-manager -o name -l app=kube-controller-manager)
|
||||
do
|
||||
oc exec -n openshift-kube-controller-manager $i -- stat -c "$i %n permissions=%a" /etc/kubernetes/static-pod-resources/kube-controller-manager-pod.yaml;
|
||||
done 2>/dev/null
|
||||
# Get the node name where the pod is running
|
||||
NODE_NAME=$(oc get pod "$HOSTNAME" -o=jsonpath='{.spec.nodeName}')
|
||||
|
||||
# Get the pod name in the openshift-kube-controller-manager namespace
|
||||
POD_NAME=$(oc get pods -n openshift-kube-controller-manager -l app=kube-controller-manager --field-selector spec.nodeName="$NODE_NAME" -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)
|
||||
|
||||
if [ -z "$POD_NAME" ]; then
|
||||
echo "No matching pods found on the current node."
|
||||
else
|
||||
# Execute the stat command
|
||||
oc exec -n openshift-kube-controller-manager "$POD_NAME" -- stat -c "$POD_NAME %n permissions=%a" /etc/kubernetes/static-pod-resources/kube-controller-manager-pod.yaml
|
||||
fi
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
@@ -63,11 +86,18 @@ groups:
|
||||
- id: 1.1.4
|
||||
text: "Ensure that the controller manager pod specification file ownership is set to root:root (Manual)"
|
||||
audit: |
|
||||
for i in $( oc get pods -n openshift-kube-controller-manager -o name -l app=kube-controller-manager)
|
||||
do
|
||||
oc exec -n openshift-kube-controller-manager $i -- \
|
||||
stat -c "$i %n %U:%G" /etc/kubernetes/static-pod-resources/kube-controller-manager-pod.yaml
|
||||
done 2>/dev/null
|
||||
# Get the node name where the pod is running
|
||||
NODE_NAME=$(oc get pod "$HOSTNAME" -o=jsonpath='{.spec.nodeName}')
|
||||
|
||||
# Get the pod name in the openshift-kube-controller-manager namespace
|
||||
POD_NAME=$(oc get pods -n openshift-kube-controller-manager -l app=kube-controller-manager --field-selector spec.nodeName="$NODE_NAME" -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)
|
||||
|
||||
if [ -z "$POD_NAME" ]; then
|
||||
echo "No matching pods found on the current node."
|
||||
else
|
||||
# Execute the stat command
|
||||
oc exec -n openshift-kube-controller-manager "$POD_NAME" -- stat -c "$POD_NAME %n %U:%G" /etc/kubernetes/static-pod-resources/kube-controller-manager-pod.yaml
|
||||
fi
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
@@ -79,10 +109,18 @@ groups:
|
||||
- id: 1.1.5
|
||||
text: "Ensure that the scheduler pod specification file permissions are set to 644 or more restrictive (Manual)"
|
||||
audit: |
|
||||
for i in $( oc get pods -n openshift-kube-scheduler -l app=openshift-kube-scheduler -o name )
|
||||
do
|
||||
oc exec -n openshift-kube-scheduler $i -- stat -c "$i %n permissions=%a" /etc/kubernetes/static-pod-resources/kube-scheduler-pod.yaml;
|
||||
done 2>/dev/null
|
||||
# Get the node name where the pod is running
|
||||
NODE_NAME=$(oc get pod "$HOSTNAME" -o=jsonpath='{.spec.nodeName}')
|
||||
|
||||
# Get the pod name in the openshift-kube-scheduler namespace
|
||||
POD_NAME=$(oc get pods -n openshift-kube-scheduler -l app=openshift-kube-scheduler --field-selector spec.nodeName="$NODE_NAME" -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)
|
||||
|
||||
if [ -z "$POD_NAME" ]; then
|
||||
echo "No matching pods found on the current node."
|
||||
else
|
||||
# Execute the stat command
|
||||
oc exec -n openshift-kube-scheduler "$POD_NAME" -- stat -c "$POD_NAME %n permissions=%a" /etc/kubernetes/static-pod-resources/kube-scheduler-pod.yaml
|
||||
fi
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
@@ -97,11 +135,18 @@ groups:
|
||||
- id: 1.1.6
|
||||
text: "Ensure that the scheduler pod specification file ownership is set to root:root (Manual))"
|
||||
audit: |
|
||||
for i in $( oc get pods -n openshift-kube-scheduler -l app=openshift-kube-scheduler -o name )
|
||||
do
|
||||
oc exec -n openshift-kube-scheduler $i -- \
|
||||
stat -c "$i %n %U:%G" /etc/kubernetes/static-pod-resources/kube-scheduler-pod.yaml
|
||||
done 2>/dev/null
|
||||
# Get the node name where the pod is running
|
||||
NODE_NAME=$(oc get pod "$HOSTNAME" -o=jsonpath='{.spec.nodeName}')
|
||||
|
||||
# Get the pod name in the openshift-kube-scheduler namespace
|
||||
POD_NAME=$(oc get pods -n openshift-kube-scheduler -l app=openshift-kube-scheduler --field-selector spec.nodeName="$NODE_NAME" -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)
|
||||
|
||||
if [ -z "$POD_NAME" ]; then
|
||||
echo "No matching pods found on the current node."
|
||||
else
|
||||
# Execute the stat command
|
||||
oc exec -n openshift-kube-scheduler "$POD_NAME" -- stat -c "$POD_NAME %n %U:%G" /etc/kubernetes/static-pod-resources/kube-scheduler-pod.yaml
|
||||
fi
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
@@ -113,10 +158,18 @@ groups:
|
||||
- id: 1.1.7
|
||||
text: "Ensure that the etcd pod specification file permissions are set to 644 or more restrictive (Manual))"
|
||||
audit: |
|
||||
for i in $( oc get pods -n openshift-etcd -l app=etcd -o name | grep etcd )
|
||||
do
|
||||
oc rsh -n openshift-etcd $i stat -c "$i %n permissions=%a" /etc/kubernetes/manifests/etcd-pod.yaml
|
||||
done 2>/dev/null
|
||||
# Get the node name where the pod is running
|
||||
NODE_NAME=$(oc get pod "$HOSTNAME" -o=jsonpath='{.spec.nodeName}')
|
||||
|
||||
# Get the pod name in the openshift-etcd namespace
|
||||
POD_NAME=$(oc get pods -n openshift-etcd -l app=etcd --field-selector spec.nodeName="$NODE_NAME" -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)
|
||||
|
||||
if [ -z "$POD_NAME" ]; then
|
||||
echo "No matching pods found on the current node."
|
||||
else
|
||||
# Execute the stat command
|
||||
oc rsh -n openshift-etcd "$POD_NAME" stat -c "$POD_NAME %n permissions=%a" /etc/kubernetes/manifests/etcd-pod.yaml
|
||||
fi
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
@@ -131,10 +184,18 @@ groups:
|
||||
- id: 1.1.8
|
||||
text: "Ensure that the etcd pod specification file ownership is set to root:root (Manual)"
|
||||
audit: |
|
||||
for i in $( oc get pods -n openshift-etcd -l app=etcd -o name | grep etcd )
|
||||
do
|
||||
oc rsh -n openshift-etcd $i stat -c "$i %n %U:%G" /etc/kubernetes/manifests/etcd-pod.yaml
|
||||
done 2>/dev/null
|
||||
# Get the node name where the pod is running
|
||||
NODE_NAME=$(oc get pod "$HOSTNAME" -o=jsonpath='{.spec.nodeName}')
|
||||
|
||||
# Get the pod name in the openshift-etcd namespace
|
||||
POD_NAME=$(oc get pods -n openshift-etcd -l app=etcd --field-selector spec.nodeName="$NODE_NAME" -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)
|
||||
|
||||
if [ -z "$POD_NAME" ]; then
|
||||
echo "No matching pods found on the current node."
|
||||
else
|
||||
# Execute the stat command
|
||||
oc rsh -n openshift-etcd "$POD_NAME" stat -c "$POD_NAME %n %U:%G" /etc/kubernetes/manifests/etcd-pod.yaml
|
||||
fi
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
@@ -146,16 +207,41 @@ groups:
|
||||
- id: 1.1.9
|
||||
text: "Ensure that the Container Network Interface file permissions are set to 644 or more restrictive (Manual)"
|
||||
audit: |
|
||||
# Get the node name where the pod is running
|
||||
NODE_NAME=$(oc get pod "$HOSTNAME" -o=jsonpath='{.spec.nodeName}')
|
||||
# For CNI multus
|
||||
for i in $(oc get pods -n openshift-multus -l app=multus -oname); do oc exec -n openshift-multus $i -- /bin/bash -c "stat -c \"$i %n permissions=%a\" /host/etc/cni/net.d/*.conf"; done 2>/dev/null
|
||||
for i in $(oc get pods -n openshift-multus -l app=multus -oname); do oc exec -n openshift-multus $i -- /bin/bash -c "stat -c \"$i %n permissions=%a\" /host/var/run/multus/cni/net.d/*.conf"; done 2>/dev/null
|
||||
# Get the pod name in the openshift-multus namespace
|
||||
POD_NAME=$(oc get pods -n openshift-multus -l app=multus --field-selector spec.nodeName="$NODE_NAME" -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)
|
||||
|
||||
if [ -z "$POD_NAME" ]; then
|
||||
echo "No matching pods found on the current node."
|
||||
else
|
||||
# Execute the stat command
|
||||
oc exec -n openshift-multus "$POD_NAME" -- /bin/bash -c "stat -c \"$i %n permissions=%a\" /host/etc/cni/net.d/*.conf"; 2>/dev/null
|
||||
oc exec -n openshift-multus "$POD_NAME" -- /bin/bash -c "stat -c \"$i %n permissions=%a\" /host/var/run/multus/cni/net.d/*.conf"; 2>/dev/null
|
||||
fi
|
||||
# For SDN pods
|
||||
for i in $(oc get pods -n openshift-sdn -l app=sdn -oname); do oc exec -n openshift-sdn $i -- find /var/lib/cni/networks/openshift-sdn -type f -exec stat -c "$i %n permissions=%a" {} \;; done 2>/dev/null
|
||||
for i in $(oc get pods -n openshift-sdn -l app=sdn -oname); do oc exec -n openshift-sdn $i -- find /var/run/openshift-sdn -type f -exec stat -c "$i %n permissions=%a" {} \;; done 2>/dev/null
|
||||
POD_NAME=$(oc get pods -n openshift-sdn -l app=sdn --field-selector spec.nodeName="$NODE_NAME" -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)
|
||||
|
||||
if [ -z "$POD_NAME" ]; then
|
||||
echo "No matching pods found on the current node."
|
||||
else
|
||||
# Execute the stat command
|
||||
oc exec -n openshift-sdn "$POD_NAME" -- find /var/lib/cni/networks/openshift-sdn -type f -exec stat -c "$i %n permissions=%a" {} \; 2>/dev/null
|
||||
oc exec -n openshift-sdn "$POD_NAME" -- find /var/run/openshift-sdn -type f -exec stat -c "$i %n permissions=%a" {} \; 2>/dev/null
|
||||
fi
|
||||
|
||||
# For OVS pods
|
||||
for i in $(oc get pods -n openshift-sdn -l app=ovs -oname); do oc exec -n openshift-sdn $i -- find /var/run/openvswitch -type f -exec stat -c "$i %n permissions=%a" {} \;; done 2>/dev/null
|
||||
for i in $(oc get pods -n openshift-sdn -l app=ovs -oname); do oc exec -n openshift-sdn $i -- find /etc/openvswitch -type f -exec stat -c "$i %n permissions=%a" {} \;; done 2>/dev/null
|
||||
for i in $(oc get pods -n openshift-sdn -l app=ovs -oname); do oc exec -n openshift-sdn $i -- find /run/openvswitch -type f -exec stat -c "$i %n permissions=%a" {} \;; done 2>/dev/null
|
||||
POD_NAME=$(oc get pods -n openshift-sdn -l app=ovs --field-selector spec.nodeName="$NODE_NAME" -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)
|
||||
|
||||
if [ -z "$POD_NAME" ]; then
|
||||
echo "No matching pods found on the current node."
|
||||
else
|
||||
# Execute the stat command
|
||||
oc exec -n openshift-sdn "$POD_NAME" -- find /var/run/openvswitch -type f -exec stat -c "$i %n permissions=%a" {} \; 2>/dev/null
|
||||
oc exec -n openshift-sdn "$POD_NAME" -- find /etc/openvswitch -type f -exec stat -c "$i %n permissions=%a" {} \; 2>/dev/null
|
||||
oc exec -n openshift-sdn "$POD_NAME" -- find /run/openvswitch -type f -exec stat -c "$i %n permissions=%a" {} \; 2>/dev/null
|
||||
fi
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
@@ -170,17 +256,40 @@ groups:
|
||||
- id: 1.1.10
|
||||
text: "Ensure that the Container Network Interface file ownership is set to root:root (Manual)"
|
||||
audit: |
|
||||
# Get the node name where the pod is running
|
||||
NODE_NAME=$(oc get pod "$HOSTNAME" -o=jsonpath='{.spec.nodeName}')
|
||||
# For CNI multus
|
||||
for i in $(oc get pods -n openshift-multus -l app=multus -oname); do oc exec -n openshift-multus $i -- /bin/bash -c "stat -c \""$i %n %U:%G\" /host/etc/cni/net.d/*.conf"; done 2>/dev/null
|
||||
for i in $(oc get pods -n openshift-multus -l app=multus -oname); do oc exec -n openshift-multus $i -- /bin/bash -c "stat -c \""$i %n %U:%G\" /host/var/run/multus/cni/net.d/*.conf"; done 2>/dev/null
|
||||
# Get the pod name in the openshift-multus namespace
|
||||
POD_NAME=$(oc get pods -n openshift-multus -l app=multus --field-selector spec.nodeName="$NODE_NAME" -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)
|
||||
|
||||
if [ -z "$POD_NAME" ]; then
|
||||
echo "No matching pods found on the current node."
|
||||
else
|
||||
# Execute the stat command
|
||||
oc exec -n openshift-multus "$POD_NAME" -- /bin/bash -c "stat -c '$i %n %U:%G' /host/etc/cni/net.d/*.conf" 2>/dev/null
|
||||
oc exec -n openshift-multus $i -- /bin/bash -c "stat -c '$i %n %U:%G' /host/var/run/multus/cni/net.d/*.conf" 2>/dev/null
|
||||
fi
|
||||
# For SDN pods
|
||||
for i in $(oc get pods -n openshift-sdn -l app=sdn -oname); do oc exec -n openshift-sdn $i -- find /var/lib/cni/networks/openshift-sdn -type f -exec stat -c "$i %n %U:%G" {} \;; done 2>/dev/null
|
||||
for i in $(oc get pods -n openshift-sdn -l app=sdn -oname); do oc exec -n openshift-sdn $i -- find /var/run/openshift-sdn -type f -exec stat -c "$i %n %U:%G"{} \;; done 2>/dev/null
|
||||
POD_NAME=$(oc get pods -n openshift-sdn -l app=sdn --field-selector spec.nodeName="$NODE_NAME" -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)
|
||||
|
||||
if [ -z "$POD_NAME" ]; then
|
||||
echo "No matching pods found on the current node."
|
||||
else
|
||||
# Execute the stat command
|
||||
oc exec -n openshift-sdn "$POD_NAME" -- find /var/lib/cni/networks/openshift-sdn -type f -exec stat -c "$i %n %U:%G" {} \; 2>/dev/null
|
||||
oc exec -n openshift-sdn "$POD_NAME" -- find /var/run/openshift-sdn -type f -exec stat -c "$i %n %U:%G" {} \; 2>/dev/null
|
||||
fi
|
||||
# For OVS pods in 4.5
|
||||
for i in $(oc get pods -n openshift-sdn -l app=ovs -oname); do oc exec -n openshift-sdn $i -- find /var/run/openvswitch -type f -exec stat -c "$i %n %U:%G" {} \;; done 2>/dev/null
|
||||
for i in $(oc get pods -n openshift-sdn -l app=ovs -oname); do oc exec -n openshift-sdn $i -- find /etc/openvswitch -type f -exec stat -c "$i %n %U:%G" {} \;; done 2>/dev/null
|
||||
for i in $(oc get pods -n openshift-sdn -l app=ovs -oname); do oc exec -n openshift-sdn $i -- find /run/openvswitch -type f -exec stat -c "$i %n %U:%G" {} \;; done 2>/dev/null
|
||||
# For OVS pods in 4.6 TBD
|
||||
POD_NAME=$(oc get pods -n openshift-sdn -l app=ovs --field-selector spec.nodeName="$NODE_NAME" -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)
|
||||
|
||||
if [ -z "$POD_NAME" ]; then
|
||||
echo "No matching pods found on the current node."
|
||||
else
|
||||
# Execute the stat command
|
||||
oc exec -n openshift-sdn "$POD_NAME" -- find /var/run/openvswitch -type f -exec stat -c "$i %n %U:%G" {} \; 2>/dev/null
|
||||
oc exec -n openshift-sdn "$POD_NAME" -- find /etc/openvswitch -type f -exec stat -c "$i %n %U:%G" {} \; 2>/dev/null
|
||||
oc exec -n openshift-sdn "$POD_NAME" -- find /run/openvswitch -type f -exec stat -c "$i %n %U:%G" {} \; 2>/dev/null
|
||||
fi
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
@@ -192,7 +301,18 @@ groups:
|
||||
- id: 1.1.11
|
||||
text: "Ensure that the etcd data directory permissions are set to 700 or more restrictive (Manual)"
|
||||
audit: |
|
||||
for i in $(oc get pods -n openshift-etcd -l app=etcd -oname); do oc exec -n openshift-etcd -c etcd $i -- stat -c "$i %n permissions=%a" /var/lib/etcd/member; done
|
||||
# Get the node name where the pod is running
|
||||
NODE_NAME=$(oc get pod "$HOSTNAME" -o=jsonpath='{.spec.nodeName}')
|
||||
|
||||
# Get the pod name in the openshift-etcd namespace
|
||||
POD_NAME=$(oc get pods -n openshift-etcd -l app=etcd --field-selector spec.nodeName="$NODE_NAME" -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)
|
||||
|
||||
if [ -z "$POD_NAME" ]; then
|
||||
echo "No matching pods found on the current node."
|
||||
else
|
||||
# Execute the stat command
|
||||
oc exec -n openshift-etcd "$POD_NAME" -- stat -c "$POD_NAME %n permissions=%a" /var/lib/etcd/member
|
||||
fi
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
@@ -207,7 +327,18 @@ groups:
|
||||
- id: 1.1.12
|
||||
text: "Ensure that the etcd data directory ownership is set to etcd:etcd (Manual)"
|
||||
audit: |
|
||||
for i in $(oc get pods -n openshift-etcd -l app=etcd -oname); do oc exec -n openshift-etcd -c etcd $i -- stat -c "$i %n %U:%G" /var/lib/etcd/member; done
|
||||
# Get the node name where the pod is running
|
||||
NODE_NAME=$(oc get pod "$HOSTNAME" -o=jsonpath='{.spec.nodeName}')
|
||||
|
||||
# Get the pod name in the openshift-etcd namespace
|
||||
POD_NAME=$(oc get pods -n openshift-etcd -l app=etcd --field-selector spec.nodeName="$NODE_NAME" -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)
|
||||
|
||||
if [ -z "$POD_NAME" ]; then
|
||||
echo "No matching pods found on the current node."
|
||||
else
|
||||
# Execute the stat command
|
||||
oc exec -n openshift-etcd "$POD_NAME" -- stat -c "$POD_NAME %n %U:%G" /var/lib/etcd/member
|
||||
fi
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
@@ -219,10 +350,8 @@ groups:
|
||||
- id: 1.1.13
|
||||
text: "Ensure that the admin.conf file permissions are set to 644 or more restrictive (Manual))"
|
||||
audit: |
|
||||
for i in $(oc get nodes -o name)
|
||||
do
|
||||
oc debug $i -- chroot /host stat -c "$i %n permissions=%a" /etc/kubernetes/kubeconfig
|
||||
done 2>/dev/null
|
||||
NODE_NAME=$(oc get pod $HOSTNAME -o=jsonpath='{.spec.nodeName}')
|
||||
oc debug node/$NODE_NAME -- chroot /host stat -c "$NODE_NAME %n permissions=%a" /etc/kubernetes/kubeconfig 2> /dev/null
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
@@ -237,10 +366,8 @@ groups:
|
||||
- id: 1.1.14
|
||||
text: "Ensure that the admin.conf file ownership is set to root:root (Manual)"
|
||||
audit: |
|
||||
for i in $(oc get nodes -o name)
|
||||
do
|
||||
oc debug $i -- chroot /host stat -c "$i %n %U:%G" /etc/kubernetes/kubeconfig
|
||||
done 2>/dev/null
|
||||
NODE_NAME=$(oc get pod $HOSTNAME -o=jsonpath='{.spec.nodeName}')
|
||||
oc debug node/$NODE_NAME -- chroot /host stat -c "$NODE_NAME %n %U:%G" /etc/kubernetes/kubeconfig 2> /dev/null
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
@@ -252,10 +379,18 @@ groups:
|
||||
- id: 1.1.15
|
||||
text: "Ensure that the scheduler.conf file permissions are set to 644 or more restrictive (Manual)"
|
||||
audit: |
|
||||
for i in $(oc get pods -n openshift-kube-scheduler -l app=openshift-kube-scheduler -o name)
|
||||
do
|
||||
oc exec -n openshift-kube-scheduler $i -- stat -c "$i %n permissions=%a" /etc/kubernetes/static-pod-resources/configmaps/scheduler-kubeconfig/kubeconfig
|
||||
done 2>/dev/null
|
||||
# Get the node name where the pod is running
|
||||
NODE_NAME=$(oc get pod "$HOSTNAME" -o=jsonpath='{.spec.nodeName}')
|
||||
|
||||
# Get the pod name in the openshift-kube-scheduler namespace
|
||||
POD_NAME=$(oc get pods -n openshift-kube-scheduler -l app=openshift-kube-scheduler --field-selector spec.nodeName="$NODE_NAME" -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)
|
||||
|
||||
if [ -z "$POD_NAME" ]; then
|
||||
echo "No matching pods found on the current node."
|
||||
else
|
||||
# Execute the stat command
|
||||
oc exec -n openshift-kube-scheduler "$POD_NAME" -- stat -c "$POD_NAME %n permissions=%a" /etc/kubernetes/static-pod-resources/configmaps/scheduler-kubeconfig/kubeconfig
|
||||
fi
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
@@ -270,10 +405,18 @@ groups:
|
||||
- id: 1.1.16
|
||||
text: "Ensure that the scheduler.conf file ownership is set to root:root (Manual)"
|
||||
audit: |
|
||||
for i in $(oc get pods -n openshift-kube-scheduler -l app=openshift-kube-scheduler -o name)
|
||||
do
|
||||
oc exec -n openshift-kube-scheduler $i -- stat -c "$i %n %U:%G" /etc/kubernetes/static-pod-resources/configmaps/scheduler-kubeconfig/kubeconfig
|
||||
done 2>/dev/null
|
||||
# Get the node name where the pod is running
|
||||
NODE_NAME=$(oc get pod "$HOSTNAME" -o=jsonpath='{.spec.nodeName}')
|
||||
|
||||
# Get the pod name in the openshift-kube-scheduler namespace
|
||||
POD_NAME=$(oc get pods -n openshift-kube-scheduler -l app=openshift-kube-scheduler --field-selector spec.nodeName="$NODE_NAME" -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)
|
||||
|
||||
if [ -z "$POD_NAME" ]; then
|
||||
echo "No matching pods found on the current node."
|
||||
else
|
||||
# Execute the stat command
|
||||
oc exec -n openshift-kube-scheduler "$POD_NAME" -- stat -c "$POD_NAME %n %U:%G" /etc/kubernetes/static-pod-resources/configmaps/scheduler-kubeconfig/kubeconfig
|
||||
fi
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
@@ -285,10 +428,18 @@ groups:
|
||||
- id: 1.1.17
|
||||
text: "Ensure that the controller-manager.conf file permissions are set to 644 or more restrictive (Manual)"
|
||||
audit: |
|
||||
for i in $(oc get pods -n openshift-kube-controller-manager -l app=kube-controller-manager -o name)
|
||||
do
|
||||
oc exec -n openshift-kube-controller-manager $i -- stat -c "$i %n permissions=%a" /etc/kubernetes/static-pod-resources/configmaps/controller-manager-kubeconfig/kubeconfig
|
||||
done 2>/dev/null
|
||||
# Get the node name where the pod is running
|
||||
NODE_NAME=$(oc get pod "$HOSTNAME" -o=jsonpath='{.spec.nodeName}')
|
||||
|
||||
# Get the pod name in the openshift-kube-controller-manager namespace
|
||||
POD_NAME=$(oc get pods -n openshift-kube-controller-manager -l app=kube-controller-manager --field-selector spec.nodeName="$NODE_NAME" -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)
|
||||
|
||||
if [ -z "$POD_NAME" ]; then
|
||||
echo "No matching pods found on the current node."
|
||||
else
|
||||
# Execute the stat command
|
||||
oc exec -n openshift-kube-controller-manager "$POD_NAME" -- stat -c "$POD_NAME %n permissions=%a" /etc/kubernetes/static-pod-resources/configmaps/controller-manager-kubeconfig/kubeconfig
|
||||
fi
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
@@ -303,10 +454,18 @@ groups:
|
||||
- id: 1.1.18
|
||||
text: "Ensure that the controller-manager.conf file ownership is set to root:root (Manual)"
|
||||
audit: |
|
||||
for i in $(oc get pods -n openshift-kube-controller-manager -l app=kube-controller-manager -o name)
|
||||
do
|
||||
oc exec -n openshift-kube-controller-manager $i -- stat -c "$i %n %U:%G" /etc/kubernetes/static-pod-resources/configmaps/controller-manager-kubeconfig/kubeconfig
|
||||
done 2>/dev/null
|
||||
# Get the node name where the pod is running
|
||||
NODE_NAME=$(oc get pod "$HOSTNAME" -o=jsonpath='{.spec.nodeName}')
|
||||
|
||||
# Get the pod name in the openshift-kube-controller-manager namespace
|
||||
POD_NAME=$(oc get pods -n openshift-kube-controller-manager -l app=kube-controller-manager --field-selector spec.nodeName="$NODE_NAME" -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)
|
||||
|
||||
if [ -z "$POD_NAME" ]; then
|
||||
echo "No matching pods found on the current node."
|
||||
else
|
||||
# Execute the stat command
|
||||
oc exec -n openshift-kube-controller-manager "$POD_NAME" -- stat -c "$POD_NAME %n %U:%G" /etc/kubernetes/static-pod-resources/configmaps/controller-manager-kubeconfig/kubeconfig
|
||||
fi
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
@@ -319,15 +478,22 @@ groups:
|
||||
text: "Ensure that the Kubernetes PKI directory and file ownership is set to root:root (Manual)"
|
||||
audit: |
|
||||
# Should return root:root for all files and directories
|
||||
for i in $(oc -n openshift-kube-apiserver get pod -l app=openshift-kube-apiserver -o jsonpath='{.items[*].metadata.name}')
|
||||
do
|
||||
# echo $i static-pod-certs
|
||||
oc exec -n openshift-kube-apiserver $i -c kube-apiserver -- find /etc/kubernetes/static-pod-certs -type d -wholename '*/secrets*' -exec stat -c "$i %n %U:%G" {} \;
|
||||
oc exec -n openshift-kube-apiserver $i -c kube-apiserver -- find /etc/kubernetes/static-pod-certs -type f -wholename '*/secrets*' -exec stat -c "$i %n %U:%G" {} \;
|
||||
# echo $i static-pod-resources
|
||||
oc exec -n openshift-kube-apiserver $i -c kube-apiserver -- find /etc/kubernetes/static-pod-resources -type d -wholename '*/secrets*' -exec stat -c "$i %n %U:%G" {} \;
|
||||
oc exec -n openshift-kube-apiserver $i -c kube-apiserver -- find /etc/kubernetes/static-pod-resources -type f -wholename '*/secrets*' -exec stat -c "$i %n %U:%G" {} \;
|
||||
done
|
||||
# Get the node name where the pod is running
|
||||
NODE_NAME=$(oc get pod "$HOSTNAME" -o=jsonpath='{.spec.nodeName}')
|
||||
|
||||
# Get the pod name in the openshift-kube-controller-manager namespace
|
||||
POD_NAME=$(oc get pods -n openshift-kube-apiserver -l app=openshift-kube-apiserver --field-selector spec.nodeName="$NODE_NAME" -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)
|
||||
|
||||
if [ -z "$POD_NAME" ]; then
|
||||
echo "No matching pods found on the current node."
|
||||
else
|
||||
# echo $i static-pod-certs
|
||||
oc exec -n openshift-kube-apiserver "$POD_NAME" -c kube-apiserver -- find /etc/kubernetes/static-pod-certs -type d -wholename '*/secrets*' -exec stat -c "$i %n %U:%G" {} \;
|
||||
oc exec -n openshift-kube-apiserver "$POD_NAME" -c kube-apiserver -- find /etc/kubernetes/static-pod-certs -type f -wholename '*/secrets*' -exec stat -c "$i %n %U:%G" {} \;
|
||||
# echo $i static-pod-resources
|
||||
oc exec -n openshift-kube-apiserver "$POD_NAME" -c kube-apiserver -- find /etc/kubernetes/static-pod-resources -type d -wholename '*/secrets*' -exec stat -c "$i %n %U:%G" {} \;
|
||||
oc exec -n openshift-kube-apiserver "$POD_NAME" -c kube-apiserver -- find /etc/kubernetes/static-pod-resources -type f -wholename '*/secrets*' -exec stat -c "$i %n %U:%G" {} \;
|
||||
fi
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
@@ -339,11 +505,18 @@ groups:
|
||||
- id: 1.1.20
|
||||
text: "Ensure that the OpenShift PKI certificate file permissions are set to 644 or more restrictive (Manual)"
|
||||
audit: |
|
||||
for i in $(oc -n openshift-kube-apiserver get pod -l app=openshift-kube-apiserver -o jsonpath='{.items[*].metadata.name}')
|
||||
do
|
||||
# echo $i static-pod-certs
|
||||
oc exec -n openshift-kube-apiserver $i -c kube-apiserver -- find /etc/kubernetes/static-pod-certs -type f -wholename '*/secrets/*.crt' -exec stat -c "$i %n permissions=%a" {} \;
|
||||
done
|
||||
# Get the node name where the pod is running
|
||||
NODE_NAME=$(oc get pod "$HOSTNAME" -o=jsonpath='{.spec.nodeName}')
|
||||
|
||||
# Get the pod name in the openshift-kube-apiserver namespace
|
||||
POD_NAME=$(oc get pods -n openshift-kube-apiserver -l app=openshift-kube-apiserver --field-selector spec.nodeName="$NODE_NAME" -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)
|
||||
|
||||
if [ -z "$POD_NAME" ]; then
|
||||
echo "No matching pods found on the current node."
|
||||
else
|
||||
# Execute the stat command
|
||||
oc exec -n openshift-kube-apiserver "$POD_NAME" -c kube-apiserver -- find /etc/kubernetes/static-pod-certs -type f -wholename '*/secrets/*.crt' -exec stat -c "$POD_NAME %n permissions=%a" {} \;
|
||||
fi
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
@@ -358,11 +531,18 @@ groups:
|
||||
- id: 1.1.21
|
||||
text: "Ensure that the OpenShift PKI key file permissions are set to 600 (Manual)"
|
||||
audit: |
|
||||
for i in $(oc -n openshift-kube-apiserver get pod -l app=openshift-kube-apiserver -o jsonpath='{.items[*].metadata.name}')
|
||||
do
|
||||
# echo $i static-pod-certs
|
||||
oc exec -n openshift-kube-apiserver $i -c kube-apiserver -- find /etc/kubernetes/static-pod-certs -type f -wholename '*/secrets/*.key' -exec stat -c "$i %n permissions=%a" {} \;
|
||||
done
|
||||
# Get the node name where the pod is running
|
||||
NODE_NAME=$(oc get pod "$HOSTNAME" -o=jsonpath='{.spec.nodeName}')
|
||||
|
||||
# Get the pod name in the openshift-kube-apiserver namespace
|
||||
POD_NAME=$(oc get pods -n openshift-kube-apiserver -l app=openshift-kube-apiserver --field-selector spec.nodeName="$NODE_NAME" -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)
|
||||
|
||||
if [ -z "$POD_NAME" ]; then
|
||||
echo "No matching pods found on the current node."
|
||||
else
|
||||
# Execute the stat command
|
||||
oc exec -n openshift-kube-apiserver "$POD_NAME" -c kube-apiserver -- find /etc/kubernetes/static-pod-certs -type f -wholename '*/secrets/*.key' -exec stat -c "$POD_NAME %n permissions=%a" {} \;
|
||||
fi
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
@@ -532,11 +712,9 @@ groups:
|
||||
oc get configmap config -n openshift-kube-apiserver -ojson | jq -r '.data["config.yaml"]' | jq '.apiServerArguments'
|
||||
oc get kubeapiservers.operator.openshift.io cluster -o json | jq '.spec.observedConfig.apiServerArguments'
|
||||
# For OCP 4.5 and earlier verify that authorization-mode is not used
|
||||
for node in $(oc get nodes -o jsonpath='{.items[*].metadata.name}')
|
||||
do
|
||||
oc debug node/${node} -- chroot /host cat /etc/kubernetes/kubelet.conf | grep authorization-mode
|
||||
oc debug node/${node} -- chroot /host ps -aux | grep kubelet | grep authorization-mode
|
||||
done
|
||||
NODE_NAME=$(oc get pod $HOSTNAME -o=jsonpath='{.spec.nodeName}')
|
||||
oc debug node/$NODE_NAME -- chroot /host cat /etc/kubernetes/kubelet.conf | grep authorization-mode 2> /dev/null
|
||||
oc debug node/$NODE_NAME -- chroot /host ps -aux | grep kubelet | grep authorization-mode 2> /dev/null
|
||||
#Check that no overrides are configured
|
||||
oc get kubeapiservers.operator.openshift.io cluster -o json | jq -r '.spec.unsupportedConfigOverrides'
|
||||
audit_config: |
|
||||
@@ -864,7 +1042,6 @@ groups:
|
||||
remediation: |
|
||||
Follow the documentation for log forwarding. Forwarding logs to third party systems
|
||||
https://docs.openshift.com/container-platform/4.5/logging/cluster-logging-external.html
|
||||
|
||||
scored: false
|
||||
|
||||
- id: 1.2.24
|
||||
@@ -1070,6 +1247,12 @@ groups:
|
||||
- id: 1.2.35
|
||||
text: "Ensure that the API Server only makes use of Strong Cryptographic Ciphers (Manual)"
|
||||
type: manual
|
||||
audit: |
|
||||
# verify cipher suites
|
||||
oc get cm -n openshift-authentication v4-0-config-system-cliconfig -o jsonpath='{.data.v4\-0\-config\-system\-cliconfig}' | jq .servingInfo
|
||||
oc get kubeapiservers.operator.openshift.io cluster -o json |jq.spec.observedConfig.servingInfo
|
||||
oc get openshiftapiservers.operator.openshift.io cluster -o json |jq.spec.observedConfig.servingInfo
|
||||
oc describe --namespace=openshift-ingress-operator ingresscontroller/default
|
||||
remediation: |
|
||||
Verify that the tlsSecurityProfile is set to the value you chose.
|
||||
Note: The HAProxy Ingress controller image does not support TLS 1.3
|
||||
|
||||
@@ -11,11 +11,8 @@ groups:
|
||||
- id: 4.1.1
|
||||
text: "Ensure that the kubelet service file permissions are set to 644 or more restrictive (Automated)"
|
||||
audit: |
|
||||
for node in $(oc get nodes -o jsonpath='{.items[*].metadata.name}')
|
||||
do
|
||||
oc debug node/${node} -- chroot /host stat -c "$node %n permissions=%a" /etc/systemd/system/kubelet.service
|
||||
done 2> /dev/null
|
||||
use_multiple_values: true
|
||||
NODE_NAME=$(oc get pod $HOSTNAME -o=jsonpath='{.spec.nodeName}')
|
||||
oc debug node/$NODE_NAME -- chroot /host stat -c "$NODE_NAME %n permissions=%a" /etc/systemd/system/kubelet.service 2> /dev/null
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
@@ -30,11 +27,8 @@ groups:
|
||||
text: "Ensure that the kubelet service file ownership is set to root:root (Automated)"
|
||||
audit: |
|
||||
# Should return root:root for each node
|
||||
for node in $(oc get nodes -o jsonpath='{.items[*].metadata.name}')
|
||||
do
|
||||
oc debug node/${node} -- chroot /host stat -c "$node %n %U:%G" /etc/systemd/system/kubelet.service
|
||||
done 2> /dev/null
|
||||
use_multiple_values: true
|
||||
NODE_NAME=$(oc get pod $HOSTNAME -o=jsonpath='{.spec.nodeName}')
|
||||
oc debug node/$NODE_NAME -- chroot /host stat -c "$NODE_NAME %n %U:%G" /etc/systemd/system/kubelet.service 2> /dev/null
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
@@ -45,11 +39,17 @@ groups:
|
||||
- id: 4.1.3
|
||||
text: "If proxy kubeconfig file exists ensure permissions are set to 644 or more restrictive (Manual)"
|
||||
audit: |
|
||||
for i in $(oc get pods -n openshift-sdn -l app=sdn -oname)
|
||||
do
|
||||
oc exec -n openshift-sdn $i -- stat -Lc "$i %n permissions=%a" /config/kube-proxy-config.yaml
|
||||
done 2> /dev/null
|
||||
use_multiple_values: true
|
||||
# Get the node name where the pod is running
|
||||
NODE_NAME=$(oc get pod "$HOSTNAME" -o=jsonpath='{.spec.nodeName}')
|
||||
# Get the pod name in the openshift-sdn namespace
|
||||
POD_NAME=$(oc get pods -n openshift-sdn -l app=sdn --field-selector spec.nodeName="$NODE_NAME" -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)
|
||||
|
||||
if [ -z "$POD_NAME" ]; then
|
||||
echo "No matching pods found on the current node."
|
||||
else
|
||||
# Execute the stat command
|
||||
oc exec -n openshift-sdn "$POD_NAME" - stat -Lc "$i %n permissions=%a" /config/kube-proxy-config.yaml 2>/dev/null
|
||||
fi
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
@@ -65,10 +65,17 @@ groups:
|
||||
- id: 4.1.4
|
||||
text: "Ensure that the proxy kubeconfig file ownership is set to root:root (Manual)"
|
||||
audit: |
|
||||
for i in $(oc get pods -n openshift-sdn -l app=sdn -oname)
|
||||
do
|
||||
oc exec -n openshift-sdn $i -- stat -Lc "$i %n %U:%G" /config/kube-proxy-config.yaml
|
||||
done 2> /dev/null
|
||||
# Get the node name where the pod is running
|
||||
NODE_NAME=$(oc get pod "$HOSTNAME" -o=jsonpath='{.spec.nodeName}')
|
||||
# Get the pod name in the openshift-sdn namespace
|
||||
POD_NAME=$(oc get pods -n openshift-sdn -l app=sdn --field-selector spec.nodeName="$NODE_NAME" -o jsonpath='{.items[0].metadata.name}' 2>/dev/null)
|
||||
|
||||
if [ -z "$POD_NAME" ]; then
|
||||
echo "No matching pods found on the current node."
|
||||
else
|
||||
# Execute the stat command
|
||||
oc exec -n openshift-sdn "$POD_NAME" -- stat -Lc "$i %n %U:%G" /config/kube-proxy-config.yaml 2>/dev/null
|
||||
fi
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
bin_op: or
|
||||
@@ -82,10 +89,8 @@ groups:
|
||||
text: "Ensure that the --kubeconfig kubelet.conf file permissions are set to 644 or more restrictive (Manual)"
|
||||
audit: |
|
||||
# Check permissions
|
||||
for node in $(oc get nodes -o jsonpath='{.items[*].metadata.name}')
|
||||
do
|
||||
oc debug node/${node} -- chroot /host stat -c "$node %n permissions=%a" /etc/kubernetes/kubelet.conf
|
||||
done 2> /dev/null
|
||||
NODE_NAME=$(oc get pod $HOSTNAME -o=jsonpath='{.spec.nodeName}')
|
||||
oc debug node/$NODE_NAME -- chroot /host stat -c "$NODE_NAME %n permissions=%a" /etc/kubernetes/kubelet.conf 2> /dev/null
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
@@ -100,10 +105,8 @@ groups:
|
||||
- id: 4.1.6
|
||||
text: "Ensure that the --kubeconfig kubelet.conf file ownership is set to root:root (Manual)"
|
||||
audit: |
|
||||
for node in $(oc get nodes -o jsonpath='{.items[*].metadata.name}')
|
||||
do
|
||||
oc debug node/${node} -- chroot /host stat -c "$node %n %U:%G" /etc/kubernetes/kubelet.conf
|
||||
done 2> /dev/null
|
||||
NODE_NAME=$(oc get pod $HOSTNAME -o=jsonpath='{.spec.nodeName}')
|
||||
oc debug node/$NODE_NAME -- chroot /host stat -c "$NODE_NAME %n %U:%G" /etc/kubernetes/kubelet.conf 2> /dev/null
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
@@ -115,10 +118,8 @@ groups:
|
||||
- id: 4.1.7
|
||||
text: "Ensure that the certificate authorities file permissions are set to 644 or more restrictive (Automated)"
|
||||
audit: |
|
||||
for node in $(oc get nodes -o jsonpath='{.items[*].metadata.name}')
|
||||
do
|
||||
oc debug node/${node} -- chroot /host stat -c "$node %n permissions=%a" /etc/kubernetes/kubelet-ca.crt
|
||||
done 2> /dev/null
|
||||
NODE_NAME=$(oc get pod $HOSTNAME -o=jsonpath='{.spec.nodeName}')
|
||||
oc debug node/$NODE_NAME -- chroot /host stat -c "$NODE_NAME %n permissions=%a" /etc/kubernetes/kubelet-ca.crt 2> /dev/null
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
@@ -133,10 +134,8 @@ groups:
|
||||
- id: 4.1.8
|
||||
text: "Ensure that the client certificate authorities file ownership is set to root:root (Automated)"
|
||||
audit: |
|
||||
for node in $(oc get nodes -o jsonpath='{.items[*].metadata.name}')
|
||||
do
|
||||
oc debug node/${node} -- chroot /host stat -c "$node %n %U:%G" /etc/kubernetes/kubelet-ca.crt
|
||||
done 2> /dev/null
|
||||
NODE_NAME=$(oc get pod $HOSTNAME -o=jsonpath='{.spec.nodeName}')
|
||||
oc debug node/$NODE_NAME -- chroot /host stat -c "$NODE_NAME %n %U:%G" /etc/kubernetes/kubelet-ca.crt 2> /dev/null
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
@@ -148,10 +147,8 @@ groups:
|
||||
- id: 4.1.9
|
||||
text: "Ensure that the kubelet --config configuration file has permissions set to 644 or more restrictive (Automated)"
|
||||
audit: |
|
||||
for node in $(oc get nodes -o jsonpath='{.items[*].metadata.name}')
|
||||
do
|
||||
oc debug node/${node} -- chroot /host stat -c "$node %n permissions=%a" /var/lib/kubelet/kubeconfig
|
||||
done 2> /dev/null
|
||||
NODE_NAME=$(oc get pod $HOSTNAME -o=jsonpath='{.spec.nodeName}')
|
||||
oc debug node/$NODE_NAME -- chroot /host stat -c "$NODE_NAME %n permissions=%a" /var/lib/kubelet/kubeconfig 2> /dev/null
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
@@ -166,10 +163,8 @@ groups:
|
||||
- id: 4.1.10
|
||||
text: "Ensure that the kubelet configuration file ownership is set to root:root (Automated)"
|
||||
audit: |
|
||||
for node in $(oc get nodes -o jsonpath='{.items[*].metadata.name}')
|
||||
do
|
||||
oc debug node/${node} -- chroot /host stat -c "$node %n %U:%G" /var/lib/kubelet/kubeconfig
|
||||
done 2> /dev/null
|
||||
NODE_NAME=$(oc get pod $HOSTNAME -o=jsonpath='{.spec.nodeName}')
|
||||
oc debug node/$NODE_NAME -- chroot /host stat -c "$NODE_NAME %n %U:%G" /var/lib/kubelet/kubeconfig 2> /dev/null
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
@@ -184,10 +179,8 @@ groups:
|
||||
- id: 4.2.1
|
||||
text: "Ensure that the --anonymous-auth argument is set to false (Automated)"
|
||||
audit: |
|
||||
for node in $(oc get nodes -o jsonpath='{.items[*].metadata.name}')
|
||||
do
|
||||
oc debug node/${node} -- chroot /host grep -B4 -A1 anonymous /etc/kubernetes/kubelet.conf
|
||||
done
|
||||
NODE_NAME=$(oc get pod $HOSTNAME -o=jsonpath='{.spec.nodeName}')
|
||||
oc debug node/$NODE_NAME -- chroot /host grep -B4 -A1 anonymous /etc/kubernetes/kubelet.conf 2> /dev/null
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
@@ -205,10 +198,8 @@ groups:
|
||||
audit: |
|
||||
POD=$(oc -n openshift-kube-apiserver get pod -l app=openshift-kube-apiserver -o jsonpath='{.items[0].metadata.name}')
|
||||
TOKEN=$(oc whoami -t)
|
||||
for name in $(oc get nodes -ojsonpath='{.items[*].metadata.name}')
|
||||
do
|
||||
oc exec -n openshift-kube-apiserver $POD -- curl -sS https://172.25.0.1/api/v1/nodes/$name/proxy/configz -k -H "Authorization:Bearer $TOKEN" | jq -r '.kubeletconfig.authorization.mode'
|
||||
done
|
||||
NODE_NAME=$(oc get pod $HOSTNAME -o=jsonpath='{.spec.nodeName}')
|
||||
oc exec -n openshift-kube-apiserver $POD -- curl -sS https://172.25.0.1/api/v1/nodes/$NODE_NAME/proxy/configz -k -H "Authorization:Bearer $TOKEN" | jq -r '.kubeletconfig.authorization.mode' 2> /dev/null
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
@@ -220,17 +211,12 @@ groups:
|
||||
- id: 4.2.3
|
||||
text: "Ensure that the --client-ca-file argument is set as appropriate (Automated)"
|
||||
audit: |
|
||||
for node in $(oc get nodes -o jsonpath='{.items[*].metadata.name}')
|
||||
do
|
||||
oc debug node/${node} -- chroot /host grep clientCAFile /etc/kubernetes/kubelet.conf
|
||||
done 2> /dev/null
|
||||
NODE_NAME=$(oc get pod $HOSTNAME -o=jsonpath='{.spec.nodeName}')
|
||||
oc debug node/$NODE_NAME -- chroot /host grep clientCAFile /etc/kubernetes/kubelet.conf 2> /dev/null
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "clientCAFile"
|
||||
compare:
|
||||
op: eq
|
||||
value: "/etc/kubernetes/kubelet-ca.crt"
|
||||
- flag: '"clientCAFile": "/etc/kubernetes/kubelet-ca.crt"'
|
||||
remediation: |
|
||||
None required. Changing the clientCAFile value is unsupported.
|
||||
scored: true
|
||||
@@ -258,18 +244,13 @@ groups:
|
||||
- id: 4.2.5
|
||||
text: "Ensure that the --streaming-connection-idle-timeout argument is not set to 0 (Automated)"
|
||||
audit: |
|
||||
# Should return 1 for each node
|
||||
for node in $(oc get nodes -o jsonpath='{.items[*].metadata.name}')
|
||||
do
|
||||
oc debug node/${node} -- chroot /host ps -ef | grep kubelet | grep streaming-connection-idle-timeout
|
||||
echo exit_code=$?
|
||||
done 2>/dev/null
|
||||
# Should return 1 for each node
|
||||
for node in $(oc get nodes -o jsonpath='{.items[*].metadata.name}')
|
||||
do
|
||||
oc debug node/${node} -- chroot /host grep streamingConnectionIdleTimeout /etc/kubernetes/kubelet.conf
|
||||
echo exit_code=$?
|
||||
done 2>/dev/null
|
||||
# Should return 1 for node
|
||||
NODE_NAME=$(oc get pod $HOSTNAME -o=jsonpath='{.spec.nodeName}')
|
||||
oc debug node/${NODE_NAME} -- chroot /host ps -ef | grep kubelet | grep streaming-connection-idle-timeout 2> /dev/null
|
||||
echo exit_code=$?
|
||||
# Should return 1 for node
|
||||
oc debug node/${NODE_NAME} -- chroot /host grep streamingConnectionIdleTimeout /etc/kubernetes/kubelet.conf 2> /dev/null
|
||||
echo exit_code=$?
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
bin_op: or
|
||||
@@ -278,6 +259,10 @@ groups:
|
||||
compare:
|
||||
op: noteq
|
||||
value: 0
|
||||
- flag: streamingConnectionIdleTimeout
|
||||
compare:
|
||||
op: noteq
|
||||
value: 0s
|
||||
- flag: "exit_code"
|
||||
compare:
|
||||
op: eq
|
||||
@@ -290,10 +275,8 @@ groups:
|
||||
- id: 4.2.6
|
||||
text: "Ensure that the --protect-kernel-defaults argument is not set (Manual)"
|
||||
audit: |
|
||||
for node in $(oc get nodes -o jsonpath='{.items[*].metadata.name}');
|
||||
do
|
||||
oc debug node/${node} -- chroot /host more /etc/kubernetes/kubelet.conf;
|
||||
done
|
||||
NODE_NAME=$(oc get pod $HOSTNAME -o=jsonpath='{.spec.nodeName}')
|
||||
oc debug node/$NODE_NAME -- chroot /host more /etc/kubernetes/kubelet.conf 2> /dev/null
|
||||
tests:
|
||||
test_items:
|
||||
- flag: protectKernelDefaults
|
||||
@@ -348,10 +331,8 @@ groups:
|
||||
- id: 4.2.9
|
||||
text: "Ensure that the kubeAPIQPS [--event-qps] argument is set to 0 or a level which ensures appropriate event capture (Manual)"
|
||||
audit: |
|
||||
for node in $(oc get nodes -o jsonpath='{.items[*].metadata.name}');
|
||||
do
|
||||
oc debug node/${node} -- chroot /host more /etc/kubernetes/kubelet.conf;
|
||||
done
|
||||
NODE_NAME=$(oc get pod $HOSTNAME -o=jsonpath='{.spec.nodeName}')
|
||||
oc debug node/${NODE_NAME} -- chroot /host cat /etc/kubernetes/kubelet.conf;
|
||||
oc get machineconfig 01-worker-kubelet -o yaml | grep --color kubeAPIQPS%3A%2050
|
||||
oc get machineconfig 01-master-kubelet -o yaml | grep --color kubeAPIQPS%3A%2050
|
||||
type: "manual"
|
||||
@@ -364,7 +345,12 @@ groups:
|
||||
- id: 4.2.10
|
||||
text: "Ensure that the --tls-cert-file and --tls-private-key-file arguments are set as appropriate (Automated)"
|
||||
audit: |
|
||||
oc get configmap config -n openshift-kube-apiserver -ojson | jq -r '.data["config.yaml"]' | jq '.kubeletClientInfo'
|
||||
oc get configmap config -n openshift-kube-apiserver -o json \
|
||||
| jq -r '.data["config.yaml"]' \
|
||||
| jq -r '.apiServerArguments |
|
||||
.["kubelet-client-certificate"][0],
|
||||
.["kubelet-client-key"][0]
|
||||
'
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
@@ -379,15 +365,10 @@ groups:
|
||||
text: "Ensure that the --rotate-certificates argument is not set to false (Manual)"
|
||||
audit: |
|
||||
#Verify the rotateKubeletClientCertificate feature gate is not set to false
|
||||
for node in $(oc get nodes -o jsonpath='{.items[*].metadata.name}')
|
||||
do
|
||||
oc debug node/${node} -- chroot /host cat /etc/kubernetes/kubelet.conf | grep RotateKubeletClientCertificate
|
||||
done 2> /dev/null
|
||||
NODE_NAME=$(oc get pod $HOSTNAME -o=jsonpath='{.spec.nodeName}')
|
||||
oc debug node/${NODE_NAME} -- chroot /host cat /etc/kubernetes/kubelet.conf | grep RotateKubeletClientCertificate 2> /dev/null
|
||||
# Verify the rotateCertificates argument is set to true
|
||||
for node in $(oc get nodes -o jsonpath='{.items[*].metadata.name}')
|
||||
do
|
||||
oc debug node/${node} -- chroot host grep rotate /etc/kubernetes/kubelet.conf;
|
||||
done 2> /dev/null
|
||||
oc debug node/${NODE_NAME} -- chroot host grep rotate /etc/kubernetes/kubelet.conf 2> /dev/null
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
bin_op: or
|
||||
@@ -410,24 +391,19 @@ groups:
|
||||
text: "Verify that the RotateKubeletServerCertificate argument is set to true (Manual)"
|
||||
audit: |
|
||||
#Verify the rotateKubeletServerCertificate feature gate is on
|
||||
for node in $(oc get nodes -o jsonpath='{.items[*].metadata.name}');
|
||||
do
|
||||
oc debug node/${node} -- chroot /host grep RotateKubeletServerCertificate /etc/kubernetes/kubelet.conf;
|
||||
done 2> /dev/null
|
||||
NODE_NAME=$(oc get pod $HOSTNAME -o=jsonpath='{.spec.nodeName}')
|
||||
oc debug node/${NODE_NAME} -- chroot /host grep RotateKubeletServerCertificate /etc/kubernetes/kubelet.conf 2> /dev/null
|
||||
# Verify the rotateCertificates argument is set to true
|
||||
for node in $(oc get nodes -o jsonpath='{.items[*].metadata.name}')
|
||||
do
|
||||
oc debug node/${node} -- chroot host grep rotate /etc/kubernetes/kubelet.conf;
|
||||
done 2> /dev/null
|
||||
oc debug node/${NODE_NAME} -- chroot host grep rotate /etc/kubernetes/kubelet.conf 2> /dev/null
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: RotateKubeletServerCertificate
|
||||
- flag: rotateCertificates
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
- flag: rotateCertificates
|
||||
- flag: RotateKubeletServerCertificate
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
|
||||
@@ -11,6 +11,12 @@ groups:
|
||||
- id: 5.1.1
|
||||
text: "Ensure that the cluster-admin role is only used where required (Manual)"
|
||||
type: "manual"
|
||||
audit: |
|
||||
#To get a list of users and service accounts with the cluster-admin role
|
||||
oc get clusterrolebindings -o=customcolumns=NAME:.metadata.name,ROLE:.roleRef.name,SUBJECT:.subjects[*].kind |
|
||||
grep cluster-admin
|
||||
#To verity that kbueadmin is removed, no results should be returned
|
||||
oc get secrets kubeadmin -n kube-system
|
||||
remediation: |
|
||||
Identify all clusterrolebindings to the cluster-admin role. Check if they are used and
|
||||
if they need this role or if they could use a role with fewer privileges.
|
||||
@@ -29,6 +35,15 @@ groups:
|
||||
- id: 5.1.3
|
||||
text: "Minimize wildcard use in Roles and ClusterRoles (Manual)"
|
||||
type: "manual"
|
||||
audit: |
|
||||
#needs verification
|
||||
oc get roles --all-namespaces -o yaml
|
||||
for i in $(oc get roles -A -o jsonpath='{.items[*].metadata.name}'); do oc
|
||||
describe clusterrole ${i}; done
|
||||
#Retrieve the cluster roles defined in the cluster and review for wildcards
|
||||
oc get clusterroles -o yaml
|
||||
for i in $(oc get clusterroles -o jsonpath='{.items[*].metadata.name}'); do
|
||||
oc describe clusterrole ${i}; done
|
||||
remediation: |
|
||||
Where possible replace any use of wildcards in clusterroles and roles with specific
|
||||
objects or actions.
|
||||
@@ -63,10 +78,7 @@ groups:
|
||||
text: "Minimize the admission of privileged containers (Manual)"
|
||||
audit: |
|
||||
# needs verification
|
||||
for i in `oc get scc --template '{{range .items}}{{.metadata.name}}{{"\n"}}{{end}}'`;
|
||||
do
|
||||
echo "$i"; oc describe scc $i | grep "Allow Privileged";
|
||||
done
|
||||
oc get scc -o=custom-columns=NAME:.metadata.name,allowPrivilegedContainer:.allowPrivilegedContainer
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "false"
|
||||
@@ -78,10 +90,7 @@ groups:
|
||||
- id: 5.2.2
|
||||
text: "Minimize the admission of containers wishing to share the host process ID namespace (Manual)"
|
||||
audit: |
|
||||
for i in `oc get scc --template '{{range .items}}{{.metadata.name}}{{"\n"}}{{end}}'`;
|
||||
do
|
||||
echo "$i"; oc describe scc $i | grep "Allow Host PID";
|
||||
done
|
||||
oc get scc -o=custom-columns=NAME:.metadata.name,allowHostPID:.allowHostPID
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "false"
|
||||
@@ -93,10 +102,7 @@ groups:
|
||||
- id: 5.2.3
|
||||
text: "Minimize the admission of containers wishing to share the host IPC namespace (Manual)"
|
||||
audit: |
|
||||
for i in `oc get scc --template '{{range .items}}{{.metadata.name}}{{"\n"}}{{end}}'`;
|
||||
do
|
||||
echo "$i"; oc describe scc $i | grep "Allow Host IPC";
|
||||
done
|
||||
oc get scc -o=custom-columns=NAME:.metadata.name,allowHostIPC:.allowHostIPC
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "false"
|
||||
@@ -108,10 +114,7 @@ groups:
|
||||
- id: 5.2.4
|
||||
text: "Minimize the admission of containers wishing to share the host network namespace (Manual)"
|
||||
audit: |
|
||||
for i in `oc get scc --template '{{range .items}}{{.metadata.name}}{{"\n"}}{{end}}'`;
|
||||
do
|
||||
echo "$i"; oc describe scc $i | grep "Allow Host Network";
|
||||
done
|
||||
oc get scc -o=custom-columns=NAME:.metadata.name,allowHostNetwork:.allowHostNetwork
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "false"
|
||||
@@ -123,10 +126,7 @@ groups:
|
||||
- id: 5.2.5
|
||||
text: "Minimize the admission of containers with allowPrivilegeEscalation (Manual)"
|
||||
audit: |
|
||||
for i in `oc get scc --template '{{range .items}}{{.metadata.name}}{{"\n"}}{{end}}'`;
|
||||
do
|
||||
echo "$i"; oc describe scc $i | grep "Allow Privilege Escalation";
|
||||
done
|
||||
oc get scc -o=custom-columns=NAME:.metadata.name,allowPrivilegeEscalation:.allowPrivilegeEscalation
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "false"
|
||||
@@ -138,18 +138,10 @@ groups:
|
||||
- id: 5.2.6
|
||||
text: "Minimize the admission of root containers (Manual)"
|
||||
audit: |
|
||||
# needs verification
|
||||
for i in `oc get scc --template '{{range .items}}{{.metadata.name}}{{"\n"}}{{end}}'`;
|
||||
do
|
||||
echo "$i";
|
||||
oc describe scc $i | grep "Run As User Strategy";
|
||||
done
|
||||
# needs verification # | awk 'NR>1 {gsub("map\\[type:", "", $2); gsub("\\]$", "", $2); print $1 ":" $2}'
|
||||
oc get scc -o=custom-columns=NAME:.metadata.name,runAsUser:.runAsUser.type
|
||||
#For SCCs with MustRunAs verify that the range of UIDs does not include 0
|
||||
for i in `oc get scc --template '{{range .items}}{{.metadata.name}}{{"\n"}}{{end}}'`;
|
||||
do
|
||||
echo "$i";
|
||||
oc describe scc $i | grep "\sUID";
|
||||
done
|
||||
oc get scc -o=custom-columns=NAME:.metadata.name,uidRangeMin:.runAsUser.uidRangeMin,uidRangeMax:.runAsUser.uidRangeMax
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
@@ -168,11 +160,7 @@ groups:
|
||||
text: "Minimize the admission of containers with the NET_RAW capability (Manual)"
|
||||
audit: |
|
||||
# needs verification
|
||||
for i in `oc get scc --template '{{range .items}}{{.metadata.name}}{{"\n"}}{{end}}'`;
|
||||
do
|
||||
echo "$i";
|
||||
oc describe scc $i | grep "Required Drop Capabilities";
|
||||
done
|
||||
oc get scc -o=custom-columns=NAME:.metadata.name,requiredDropCapabilities:.requiredDropCapabilities
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
@@ -213,6 +201,9 @@ groups:
|
||||
- id: 5.3.2
|
||||
text: "Ensure that all Namespaces have Network Policies defined (Manual)"
|
||||
type: "manual"
|
||||
audit: |
|
||||
#Run the following command and review the NetworkPolicy objects created in the cluster.
|
||||
oc -n all get networkpolicy
|
||||
remediation: |
|
||||
Follow the documentation and create NetworkPolicy objects as you need them.
|
||||
scored: false
|
||||
@@ -223,6 +214,10 @@ groups:
|
||||
- id: 5.4.1
|
||||
text: "Prefer using secrets as files over secrets as environment variables (Manual)"
|
||||
type: "manual"
|
||||
audit: |
|
||||
#Run the following command to find references to objects which use environment variables defined from secrets.
|
||||
oc get all -o jsonpath='{range .items[?(@..secretKeyRef)]} {.kind}
|
||||
{.metadata.name} {"\n"}{end}' -A
|
||||
remediation: |
|
||||
If possible, rewrite application code to read secrets from mounted secret files, rather than
|
||||
from environment variables.
|
||||
@@ -252,6 +247,10 @@ groups:
|
||||
- id: 5.7.1
|
||||
text: "Create administrative boundaries between resources using namespaces (Manual)"
|
||||
type: "manual"
|
||||
audit: |
|
||||
#Run the following command and review the namespaces created in the cluster.
|
||||
oc get namespaces
|
||||
#Ensure that these namespaces are the ones you need and are adequately administered as per your requirements.
|
||||
remediation: |
|
||||
Follow the documentation and create namespaces for objects in your deployment as you need
|
||||
them.
|
||||
@@ -277,6 +276,11 @@ groups:
|
||||
- id: 5.7.4
|
||||
text: "The default namespace should not be used (Manual)"
|
||||
type: "manual"
|
||||
audit: |
|
||||
#Run this command to list objects in default namespace
|
||||
oc project default
|
||||
oc get all
|
||||
#The only entries there should be system managed resources such as the kubernetes and openshift service
|
||||
remediation: |
|
||||
Ensure that namespaces are created to allow for appropriate segregation of Kubernetes
|
||||
resources and that all new resources are created in a specific namespace.
|
||||
|
||||
2
cfg/rke-cis-1.23/config.yaml
Normal file
2
cfg/rke-cis-1.23/config.yaml
Normal file
@@ -0,0 +1,2 @@
|
||||
---
|
||||
## Version-specific settings that override the values in cfg/config.yaml
|
||||
46
cfg/rke-cis-1.23/controlplane.yaml
Normal file
46
cfg/rke-cis-1.23/controlplane.yaml
Normal file
@@ -0,0 +1,46 @@
|
||||
---
|
||||
controls:
|
||||
version: "rke-cis-1.23"
|
||||
id: 3
|
||||
text: "Control Plane Configuration"
|
||||
type: "controlplane"
|
||||
groups:
|
||||
- id: 3.1
|
||||
text: "Authentication and Authorization"
|
||||
checks:
|
||||
- id: 3.1.1
|
||||
text: "Client certificate authentication should not be used for users (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Alternative mechanisms provided by Kubernetes such as the use of OIDC should be
|
||||
implemented in place of client certificates.
|
||||
scored: false
|
||||
|
||||
- id: 3.2
|
||||
text: "Logging"
|
||||
checks:
|
||||
- id: 3.2.1
|
||||
text: "Ensure that a minimal audit policy is created (Manual)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--audit-policy-file"
|
||||
set: true
|
||||
remediation: |
|
||||
Create an audit policy file for your cluster.
|
||||
scored: true
|
||||
|
||||
- id: 3.2.2
|
||||
text: "Ensure that the audit policy covers key security concerns (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Review the audit policy provided for the cluster and ensure that it covers
|
||||
at least the following areas,
|
||||
- Access to Secrets managed by the cluster. Care should be taken to only
|
||||
log Metadata for requests to Secrets, ConfigMaps, and TokenReviews, in
|
||||
order to avoid risk of logging sensitive data.
|
||||
- Modification of Pod and Deployment objects.
|
||||
- Use of `pods/exec`, `pods/portforward`, `pods/proxy` and `services/proxy`.
|
||||
For most requests, minimally logging at the Metadata level is recommended
|
||||
(the most basic level of logging).
|
||||
scored: false
|
||||
149
cfg/rke-cis-1.23/etcd.yaml
Normal file
149
cfg/rke-cis-1.23/etcd.yaml
Normal file
@@ -0,0 +1,149 @@
|
||||
---
|
||||
controls:
|
||||
version: "rke-cis-1.23"
|
||||
id: 2
|
||||
text: "Etcd Node Configuration"
|
||||
type: "etcd"
|
||||
groups:
|
||||
- id: 2
|
||||
text: "Etcd Node Configuration"
|
||||
checks:
|
||||
- id: 2.1
|
||||
text: "Ensure that the --cert-file and --key-file arguments are set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "--cert-file"
|
||||
env: "ETCD_CERT_FILE"
|
||||
set: true
|
||||
- flag: "--key-file"
|
||||
env: "ETCD_KEY_FILE"
|
||||
set: true
|
||||
remediation: |
|
||||
Follow the etcd service documentation and configure TLS encryption.
|
||||
Then, edit the etcd pod specification file /etc/kubernetes/manifests/etcd.yaml
|
||||
on the master node and set the below parameters.
|
||||
--cert-file=</path/to/ca-file>
|
||||
--key-file=</path/to/key-file>
|
||||
scored: true
|
||||
|
||||
- id: 2.2
|
||||
text: "Ensure that the --client-cert-auth argument is set to true (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--client-cert-auth"
|
||||
set: true
|
||||
- flag: "--client-cert-auth"
|
||||
env: "ETCD_CLIENT_CERT_AUTH"
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
set: true
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and set the below parameter.
|
||||
--client-cert-auth="true"
|
||||
scored: true
|
||||
|
||||
- id: 2.3
|
||||
text: "Ensure that the --auto-tls argument is not set to true (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--auto-tls"
|
||||
env: "ETCD_AUTO_TLS"
|
||||
set: false
|
||||
- flag: "--auto-tls"
|
||||
env: "ETCD_AUTO_TLS"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and either remove the --auto-tls parameter or set it to false.
|
||||
--auto-tls=false
|
||||
scored: true
|
||||
|
||||
- id: 2.4
|
||||
text: "Ensure that the --peer-cert-file and --peer-key-file arguments are
|
||||
set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "--peer-cert-file"
|
||||
env: "ETCD_PEER_CERT_FILE"
|
||||
set: true
|
||||
- flag: "--peer-key-file"
|
||||
env: "ETCD_PEER_KEY_FILE"
|
||||
set: true
|
||||
remediation: |
|
||||
Follow the etcd service documentation and configure peer TLS encryption as appropriate
|
||||
for your etcd cluster.
|
||||
Then, edit the etcd pod specification file $etcdconf on the
|
||||
master node and set the below parameters.
|
||||
--peer-client-file=</path/to/peer-cert-file>
|
||||
--peer-key-file=</path/to/peer-key-file>
|
||||
scored: true
|
||||
|
||||
- id: 2.5
|
||||
text: "Ensure that the --peer-client-cert-auth argument is set to true (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--peer-client-cert-auth"
|
||||
set: true
|
||||
- flag: "--peer-client-cert-auth"
|
||||
env: "ETCD_PEER_CLIENT_CERT_AUTH"
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
set: true
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and set the below parameter.
|
||||
--peer-client-cert-auth=true
|
||||
scored: true
|
||||
|
||||
- id: 2.6
|
||||
text: "Ensure that the --peer-auto-tls argument is not set to true (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--peer-auto-tls"
|
||||
env: "ETCD_PEER_AUTO_TLS"
|
||||
set: false
|
||||
- flag: "--peer-auto-tls"
|
||||
env: "ETCD_PEER_AUTO_TLS"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and either remove the --peer-auto-tls parameter or set it to false.
|
||||
--peer-auto-tls=false
|
||||
scored: true
|
||||
|
||||
- id: 2.7
|
||||
text: "Ensure that a unique Certificate Authority is used for etcd (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--trusted-ca-file"
|
||||
env: "ETCD_TRUSTED_CA_FILE"
|
||||
set: true
|
||||
remediation: |
|
||||
[Manual test]
|
||||
Follow the etcd documentation and create a dedicated certificate authority setup for the
|
||||
etcd service.
|
||||
Then, edit the etcd pod specification file $etcdconf on the
|
||||
master node and set the below parameter.
|
||||
--trusted-ca-file=</path/to/ca-file>
|
||||
scored: true
|
||||
1011
cfg/rke-cis-1.23/master.yaml
Normal file
1011
cfg/rke-cis-1.23/master.yaml
Normal file
File diff suppressed because it is too large
Load Diff
466
cfg/rke-cis-1.23/node.yaml
Normal file
466
cfg/rke-cis-1.23/node.yaml
Normal file
@@ -0,0 +1,466 @@
|
||||
---
|
||||
controls:
|
||||
version: "rke-cis-1.23"
|
||||
id: 4
|
||||
text: "Worker Node Security Configuration"
|
||||
type: "node"
|
||||
groups:
|
||||
- id: 4.1
|
||||
text: "Worker Node Configuration Files"
|
||||
checks:
|
||||
- id: 4.1.1
|
||||
text: "Ensure that the kubelet service file permissions are set to 644 or more restrictive (Automated)"
|
||||
type: "skip"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletsvc; then stat -c permissions=%a $kubeletsvc; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "644"
|
||||
remediation: |
|
||||
Cluster provisioned by RKE doesn’t require or maintain a configuration file for the kubelet service.
|
||||
All configuration is passed in as arguments at container run time.
|
||||
scored: true
|
||||
|
||||
- id: 4.1.2
|
||||
text: "Ensure that the kubelet service file ownership is set to root:root (Automated)"
|
||||
type: "skip"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletsvc; then stat -c %U:%G $kubeletsvc; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Cluster provisioned by RKE doesn’t require or maintain a configuration file for the kubelet service.
|
||||
All configuration is passed in as arguments at container run time.
|
||||
scored: true
|
||||
|
||||
- id: 4.1.3
|
||||
text: "If proxy kubeconfig file exists ensure permissions are set to 644 or more restrictive (Manual)"
|
||||
audit: '/bin/sh -c ''if test -e $proxykubeconfig; then stat -c permissions=%a $proxykubeconfig; fi'' '
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
set: true
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "644"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chmod 644 $proxykubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 4.1.4
|
||||
text: "If proxy kubeconfig file exists ensure ownership is set to root:root (Manual)"
|
||||
audit: '/bin/sh -c ''if test -e $proxykubeconfig; then stat -c %U:%G $proxykubeconfig; fi'' '
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example, chown root:root $proxykubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 4.1.5
|
||||
text: "Ensure that the --kubeconfig kubelet.conf file permissions are set to 644 or more restrictive (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e /node$kubeletkubeconfig; then stat -c permissions=%a /node$kubeletkubeconfig; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "644"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chmod 644 $kubeletkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 4.1.6
|
||||
text: "Ensure that the --kubeconfig kubelet.conf file ownership is set to root:root (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e /node$kubeletkubeconfig; then stat -c %U:%G /node$kubeletkubeconfig; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chown root:root $kubeletkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 4.1.7
|
||||
text: "Ensure that the certificate authorities file permissions are set to 644 or more restrictive (Automated)"
|
||||
audit: "stat -c permissions=%a /node/etc/kubernetes/ssl/kube-ca.pem"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "644"
|
||||
remediation: |
|
||||
Run the following command to modify the file permissions of the
|
||||
--client-ca-file chmod 644 <filename>
|
||||
scored: true
|
||||
|
||||
- id: 4.1.8
|
||||
text: "Ensure that the client certificate authorities file ownership is set to root:root (Automated)"
|
||||
audit: "stat -c %U:%G /node/etc/kubernetes/ssl/kube-ca.pem"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Run the following command to modify the ownership of the --client-ca-file.
|
||||
chown root:root <filename>
|
||||
scored: true
|
||||
|
||||
- id: 4.1.9
|
||||
text: "Ensure that the kubelet --config configuration file has permissions set to 644 or more restrictive (Automated)"
|
||||
type: "skip"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletconf; then stat -c permissions=%a $kubeletconf; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "644"
|
||||
remediation: |
|
||||
Clusters provisioned by RKE doesn’t require or maintain a configuration file for the kubelet.
|
||||
All configuration is passed in as arguments at container run time.
|
||||
|
||||
Clusters provisioned by RKE doesn’t require or maintain a configuration file for the kubelet.
|
||||
All configuration is passed in as arguments at container run time.
|
||||
scored: true
|
||||
|
||||
- id: 4.1.10
|
||||
text: "Ensure that the kubelet --config configuration file ownership is set to root:root (Automated)"
|
||||
type: "skip"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletconf; then stat -c %U:%G $kubeletconf; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Clusters provisioned by RKE doesn’t require or maintain a configuration file for the kubelet.
|
||||
All configuration is passed in as arguments at container run time.
|
||||
|
||||
Clusters provisioned by RKE doesn’t require or maintain a configuration file for the kubelet.
|
||||
All configuration is passed in as arguments at container run time.
|
||||
scored: true
|
||||
|
||||
- id: 4.2
|
||||
text: "Kubelet"
|
||||
checks:
|
||||
- id: 4.2.1
|
||||
text: "Ensure that the --anonymous-auth argument is set to false (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--anonymous-auth"
|
||||
path: '{.authentication.anonymous.enabled}'
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `authentication: anonymous: enabled` to
|
||||
`false`.
|
||||
If using executable arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
`--anonymous-auth=false`
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.2
|
||||
text: "Ensure that the --authorization-mode argument is not set to AlwaysAllow (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --authorization-mode
|
||||
path: '{.authorization.mode}'
|
||||
compare:
|
||||
op: nothave
|
||||
value: AlwaysAllow
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `authorization.mode` to Webhook. If
|
||||
using executable arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_AUTHZ_ARGS variable.
|
||||
--authorization-mode=Webhook
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.3
|
||||
text: "Ensure that the --client-ca-file argument is set as appropriate (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --client-ca-file
|
||||
path: '{.authentication.x509.clientCAFile}'
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `authentication.x509.clientCAFile` to
|
||||
the location of the client CA file.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_AUTHZ_ARGS variable.
|
||||
--client-ca-file=<path/to/client-ca-file>
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.4
|
||||
text: "Ensure that the --read-only-port argument is set to 0 (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--read-only-port"
|
||||
path: '{.readOnlyPort}'
|
||||
compare:
|
||||
op: eq
|
||||
value: 0
|
||||
- flag: "--read-only-port"
|
||||
path: '{.readOnlyPort}'
|
||||
set: false
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `readOnlyPort` to 0.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
--read-only-port=0
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.5
|
||||
text: "Ensure that the --streaming-connection-idle-timeout argument is not set to 0 (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --streaming-connection-idle-timeout
|
||||
path: '{.streamingConnectionIdleTimeout}'
|
||||
compare:
|
||||
op: noteq
|
||||
value: 0
|
||||
- flag: --streaming-connection-idle-timeout
|
||||
path: '{.streamingConnectionIdleTimeout}'
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `streamingConnectionIdleTimeout` to a
|
||||
value other than 0.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
--streaming-connection-idle-timeout=5m
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.6
|
||||
text: "Ensure that the --protect-kernel-defaults argument is set to true (Automated)"
|
||||
type: "skip"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --protect-kernel-defaults
|
||||
path: '{.protectKernelDefaults}'
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `protectKernelDefaults` to `true`.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
--protect-kernel-defaults=true
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
System level configurations are required prior to provisioning the cluster in order for this argument to be set to true.
|
||||
scored: true
|
||||
|
||||
- id: 4.2.7
|
||||
text: "Ensure that the --make-iptables-util-chains argument is set to true (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --make-iptables-util-chains
|
||||
path: '{.makeIPTablesUtilChains}'
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
- flag: --make-iptables-util-chains
|
||||
path: '{.makeIPTablesUtilChains}'
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `makeIPTablesUtilChains` to `true`.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
remove the --make-iptables-util-chains argument from the
|
||||
KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.8
|
||||
text: "Ensure that the --hostname-override argument is not set (Manual)"
|
||||
# This is one of those properties that can only be set as a command line argument.
|
||||
# To check if the property is set as expected, we need to parse the kubelet command
|
||||
# instead reading the Kubelet Configuration file.
|
||||
type: "skip"
|
||||
audit: "/bin/ps -fC $kubeletbin "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --hostname-override
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the kubelet service file $kubeletsvc
|
||||
on each worker node and remove the --hostname-override argument from the
|
||||
KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
Clusters provisioned by RKE set the --hostname-override to avoid any hostname configuration errors
|
||||
scored: false
|
||||
|
||||
- id: 4.2.9
|
||||
text: "Ensure that the --event-qps argument is set to 0 or a level which ensures appropriate event capture (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --event-qps
|
||||
path: '{.eventRecordQPS}'
|
||||
compare:
|
||||
op: eq
|
||||
value: 0
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `eventRecordQPS` to an appropriate level.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.10
|
||||
text: "Ensure that the --tls-cert-file and --tls-private-key-file arguments are set as appropriate (Manual)"
|
||||
type: "skip"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --tls-cert-file
|
||||
path: '{.tlsCertFile}'
|
||||
- flag: --tls-private-key-file
|
||||
path: '{.tlsPrivateKeyFile}'
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `tlsCertFile` to the location
|
||||
of the certificate file to use to identify this Kubelet, and `tlsPrivateKeyFile`
|
||||
to the location of the corresponding private key file.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameters in KUBELET_CERTIFICATE_ARGS variable.
|
||||
--tls-cert-file=<path/to/tls-certificate-file>
|
||||
--tls-private-key-file=<path/to/tls-key-file>
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
When generating serving certificates, functionality could break in conjunction with hostname overrides which are required for certain cloud providers.
|
||||
scored: false
|
||||
|
||||
- id: 4.2.11
|
||||
text: "Ensure that the --rotate-certificates argument is not set to false (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --rotate-certificates
|
||||
path: '{.rotateCertificates}'
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
- flag: --rotate-certificates
|
||||
path: '{.rotateCertificates}'
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to add the line `rotateCertificates` to `true` or
|
||||
remove it altogether to use the default value.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
remove --rotate-certificates=false argument from the KUBELET_CERTIFICATE_ARGS
|
||||
variable.
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.12
|
||||
text: "Verify that the RotateKubeletServerCertificate argument is set to true (Manual)"
|
||||
type: "skip"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: RotateKubeletServerCertificate
|
||||
path: '{.featureGates.RotateKubeletServerCertificate}'
|
||||
compare:
|
||||
op: nothave
|
||||
value: false
|
||||
- flag: RotateKubeletServerCertificate
|
||||
path: '{.featureGates.RotateKubeletServerCertificate}'
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the kubelet service file $kubeletsvc
|
||||
on each worker node and set the below parameter in KUBELET_CERTIFICATE_ARGS variable.
|
||||
--feature-gates=RotateKubeletServerCertificate=true
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
Clusters provisioned by RKE handles certificate rotation directly through RKE.
|
||||
scored: false
|
||||
|
||||
- id: 4.2.13
|
||||
text: "Ensure that the Kubelet only makes use of Strong Cryptographic Ciphers (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --tls-cipher-suites
|
||||
path: '{range .tlsCipherSuites[:]}{}{'',''}{end}'
|
||||
compare:
|
||||
op: valid_elements
|
||||
value: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `TLSCipherSuites` to
|
||||
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
|
||||
or to a subset of these values.
|
||||
If using executable arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the --tls-cipher-suites parameter as follows, or to a subset of these values.
|
||||
--tls-cipher-suites=TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
277
cfg/rke-cis-1.23/policies.yaml
Normal file
277
cfg/rke-cis-1.23/policies.yaml
Normal file
@@ -0,0 +1,277 @@
|
||||
---
|
||||
controls:
|
||||
version: "rke-cis-1.23"
|
||||
id: 5
|
||||
text: "Kubernetes Policies"
|
||||
type: "policies"
|
||||
groups:
|
||||
- id: 5.1
|
||||
text: "RBAC and Service Accounts"
|
||||
checks:
|
||||
- id: 5.1.1
|
||||
text: "Ensure that the cluster-admin role is only used where required (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Identify all clusterrolebindings to the cluster-admin role. Check if they are used and
|
||||
if they need this role or if they could use a role with fewer privileges.
|
||||
Where possible, first bind users to a lower privileged role and then remove the
|
||||
clusterrolebinding to the cluster-admin role :
|
||||
kubectl delete clusterrolebinding [name]
|
||||
scored: false
|
||||
|
||||
- id: 5.1.2
|
||||
text: "Minimize access to secrets (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove get, list and watch access to Secret objects in the cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.3
|
||||
text: "Minimize wildcard use in Roles and ClusterRoles (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible replace any use of wildcards in clusterroles and roles with specific
|
||||
objects or actions.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.4
|
||||
text: "Minimize access to create pods (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove create access to pod objects in the cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.5
|
||||
text: "Ensure that default service accounts are not actively used. (Automated)"
|
||||
type: "skip"
|
||||
audit: check_for_default_sa.sh
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "true"
|
||||
compare:
|
||||
op: eq
|
||||
value: "true"
|
||||
set: true
|
||||
remediation: |
|
||||
Create explicit service accounts wherever a Kubernetes workload requires specific access
|
||||
to the Kubernetes API server.
|
||||
Modify the configuration of each default service account to include this value
|
||||
automountServiceAccountToken: false
|
||||
scored: false
|
||||
|
||||
- id: 5.1.6
|
||||
text: "Ensure that Service Account Tokens are only mounted where necessary (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Modify the definition of pods and service accounts which do not need to mount service
|
||||
account tokens to disable it.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.7
|
||||
text: "Avoid use of system:masters group (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Remove the system:masters group from all users in the cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.8
|
||||
text: "Limit use of the Bind, Impersonate and Escalate permissions in the Kubernetes cluster (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove the impersonate, bind and escalate rights from subjects.
|
||||
scored: false
|
||||
|
||||
- id: 5.2
|
||||
text: "Pod Security Standards"
|
||||
checks:
|
||||
- id: 5.2.1
|
||||
text: "Ensure that the cluster has at least one active policy control mechanism in place (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Ensure that either Pod Security Admission or an external policy control system is in place
|
||||
for every namespace which contains user workloads.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.2
|
||||
text: "Minimize the admission of privileged containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of privileged containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.3
|
||||
text: "Minimize the admission of containers wishing to share the host process ID namespace (Automated)"
|
||||
type: "skip"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of `hostPID` containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.4
|
||||
text: "Minimize the admission of containers wishing to share the host IPC namespace (Automated)"
|
||||
type: "skip"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of `hostIPC` containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.5
|
||||
text: "Minimize the admission of containers wishing to share the host network namespace (Automated)"
|
||||
type: "skip"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of `hostNetwork` containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.6
|
||||
text: "Minimize the admission of containers with allowPrivilegeEscalation (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers with `.spec.allowPrivilegeEscalation` set to `true`.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.7
|
||||
text: "Minimize the admission of root containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Create a policy for each namespace in the cluster, ensuring that either `MustRunAsNonRoot`
|
||||
or `MustRunAs` with the range of UIDs not including 0, is set.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.8
|
||||
text: "Minimize the admission of containers with the NET_RAW capability (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers with the `NET_RAW` capability.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.9
|
||||
text: "Minimize the admission of containers with added capabilities (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Ensure that `allowedCapabilities` is not present in policies for the cluster unless
|
||||
it is set to an empty array.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.10
|
||||
text: "Minimize the admission of containers with capabilities assigned (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Review the use of capabilites in applications running on your cluster. Where a namespace
|
||||
contains applicaions which do not require any Linux capabities to operate consider adding
|
||||
a PSP which forbids the admission of containers which do not drop all capabilities.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.11
|
||||
text: "Minimize the admission of Windows HostProcess containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers that have `.securityContext.windowsOptions.hostProcess` set to `true`.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.12
|
||||
text: "Minimize the admission of HostPath volumes (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers with `hostPath` volumes.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.13
|
||||
text: "Minimize the admission of containers which use HostPorts (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers which use `hostPort` sections.
|
||||
scored: false
|
||||
|
||||
- id: 5.3
|
||||
text: "Network Policies and CNI"
|
||||
checks:
|
||||
- id: 5.3.1
|
||||
text: "Ensure that the CNI in use supports NetworkPolicies (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
If the CNI plugin in use does not support network policies, consideration should be given to
|
||||
making use of a different plugin, or finding an alternate mechanism for restricting traffic
|
||||
in the Kubernetes cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.3.2
|
||||
text: "Ensure that all Namespaces have NetworkPolicies defined (Manual)"
|
||||
type: "skip"
|
||||
remediation: |
|
||||
Follow the documentation and create NetworkPolicy objects as you need them.
|
||||
scored: false
|
||||
|
||||
- id: 5.4
|
||||
text: "Secrets Management"
|
||||
checks:
|
||||
- id: 5.4.1
|
||||
text: "Prefer using Secrets as files over Secrets as environment variables (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
If possible, rewrite application code to read Secrets from mounted secret files, rather than
|
||||
from environment variables.
|
||||
scored: false
|
||||
|
||||
- id: 5.4.2
|
||||
text: "Consider external secret storage (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Refer to the Secrets management options offered by your cloud provider or a third-party
|
||||
secrets management solution.
|
||||
scored: false
|
||||
|
||||
- id: 5.5
|
||||
text: "Extensible Admission Control"
|
||||
checks:
|
||||
- id: 5.5.1
|
||||
text: "Configure Image Provenance using ImagePolicyWebhook admission controller (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and setup image provenance.
|
||||
scored: false
|
||||
|
||||
- id: 5.7
|
||||
text: "General Policies"
|
||||
checks:
|
||||
- id: 5.7.1
|
||||
text: "Create administrative boundaries between resources using namespaces (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the documentation and create namespaces for objects in your deployment as you need
|
||||
them.
|
||||
scored: false
|
||||
|
||||
- id: 5.7.2
|
||||
text: "Ensure that the seccomp profile is set to docker/default in your Pod definitions (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Use `securityContext` to enable the docker/default seccomp profile in your pod definitions.
|
||||
An example is as below:
|
||||
securityContext:
|
||||
seccompProfile:
|
||||
type: RuntimeDefault
|
||||
scored: false
|
||||
|
||||
- id: 5.7.3
|
||||
text: "Apply SecurityContext to your Pods and Containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and apply SecurityContexts to your Pods. For a
|
||||
suggested list of SecurityContexts, you may refer to the CIS Security Benchmark for Docker
|
||||
Containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.7.4
|
||||
text: "The default namespace should not be used (Manual)"
|
||||
type: "skip"
|
||||
remediation: |
|
||||
Ensure that namespaces are created to allow for appropriate segregation of Kubernetes
|
||||
resources and that all new resources are created in a specific namespace.
|
||||
scored: false
|
||||
2
cfg/rke-cis-1.24/config.yaml
Normal file
2
cfg/rke-cis-1.24/config.yaml
Normal file
@@ -0,0 +1,2 @@
|
||||
---
|
||||
## Version-specific settings that override the values in cfg/config.yaml
|
||||
46
cfg/rke-cis-1.24/controlplane.yaml
Normal file
46
cfg/rke-cis-1.24/controlplane.yaml
Normal file
@@ -0,0 +1,46 @@
|
||||
---
|
||||
controls:
|
||||
version: "rke-cis-1.24"
|
||||
id: 3
|
||||
text: "Control Plane Configuration"
|
||||
type: "controlplane"
|
||||
groups:
|
||||
- id: 3.1
|
||||
text: "Authentication and Authorization"
|
||||
checks:
|
||||
- id: 3.1.1
|
||||
text: "Client certificate authentication should not be used for users (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Alternative mechanisms provided by Kubernetes such as the use of OIDC should be
|
||||
implemented in place of client certificates.
|
||||
scored: false
|
||||
|
||||
- id: 3.2
|
||||
text: "Logging"
|
||||
checks:
|
||||
- id: 3.2.1
|
||||
text: "Ensure that a minimal audit policy is created (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--audit-policy-file"
|
||||
set: true
|
||||
remediation: |
|
||||
Create an audit policy file for your cluster.
|
||||
scored: true
|
||||
|
||||
- id: 3.2.2
|
||||
text: "Ensure that the audit policy covers key security concerns (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Review the audit policy provided for the cluster and ensure that it covers
|
||||
at least the following areas,
|
||||
- Access to Secrets managed by the cluster. Care should be taken to only
|
||||
log Metadata for requests to Secrets, ConfigMaps, and TokenReviews, in
|
||||
order to avoid risk of logging sensitive data.
|
||||
- Modification of Pod and Deployment objects.
|
||||
- Use of `pods/exec`, `pods/portforward`, `pods/proxy` and `services/proxy`.
|
||||
For most requests, minimally logging at the Metadata level is recommended
|
||||
(the most basic level of logging).
|
||||
scored: false
|
||||
149
cfg/rke-cis-1.24/etcd.yaml
Normal file
149
cfg/rke-cis-1.24/etcd.yaml
Normal file
@@ -0,0 +1,149 @@
|
||||
---
|
||||
controls:
|
||||
version: "rke-cis-1.24"
|
||||
id: 2
|
||||
text: "Etcd Node Configuration"
|
||||
type: "etcd"
|
||||
groups:
|
||||
- id: 2
|
||||
text: "Etcd Node Configuration"
|
||||
checks:
|
||||
- id: 2.1
|
||||
text: "Ensure that the --cert-file and --key-file arguments are set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "--cert-file"
|
||||
env: "ETCD_CERT_FILE"
|
||||
set: true
|
||||
- flag: "--key-file"
|
||||
env: "ETCD_KEY_FILE"
|
||||
set: true
|
||||
remediation: |
|
||||
Follow the etcd service documentation and configure TLS encryption.
|
||||
Then, edit the etcd pod specification file /etc/kubernetes/manifests/etcd.yaml
|
||||
on the master node and set the below parameters.
|
||||
--cert-file=</path/to/ca-file>
|
||||
--key-file=</path/to/key-file>
|
||||
scored: true
|
||||
|
||||
- id: 2.2
|
||||
text: "Ensure that the --client-cert-auth argument is set to true (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--client-cert-auth"
|
||||
set: true
|
||||
- flag: "--client-cert-auth"
|
||||
env: "ETCD_CLIENT_CERT_AUTH"
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
set: true
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and set the below parameter.
|
||||
--client-cert-auth="true"
|
||||
scored: true
|
||||
|
||||
- id: 2.3
|
||||
text: "Ensure that the --auto-tls argument is not set to true (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--auto-tls"
|
||||
env: "ETCD_AUTO_TLS"
|
||||
set: false
|
||||
- flag: "--auto-tls"
|
||||
env: "ETCD_AUTO_TLS"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and either remove the --auto-tls parameter or set it to false.
|
||||
--auto-tls=false
|
||||
scored: true
|
||||
|
||||
- id: 2.4
|
||||
text: "Ensure that the --peer-cert-file and --peer-key-file arguments are
|
||||
set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "--peer-cert-file"
|
||||
env: "ETCD_PEER_CERT_FILE"
|
||||
set: true
|
||||
- flag: "--peer-key-file"
|
||||
env: "ETCD_PEER_KEY_FILE"
|
||||
set: true
|
||||
remediation: |
|
||||
Follow the etcd service documentation and configure peer TLS encryption as appropriate
|
||||
for your etcd cluster.
|
||||
Then, edit the etcd pod specification file $etcdconf on the
|
||||
master node and set the below parameters.
|
||||
--peer-client-file=</path/to/peer-cert-file>
|
||||
--peer-key-file=</path/to/peer-key-file>
|
||||
scored: true
|
||||
|
||||
- id: 2.5
|
||||
text: "Ensure that the --peer-client-cert-auth argument is set to true (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--peer-client-cert-auth"
|
||||
set: true
|
||||
- flag: "--peer-client-cert-auth"
|
||||
env: "ETCD_PEER_CLIENT_CERT_AUTH"
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
set: true
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and set the below parameter.
|
||||
--peer-client-cert-auth=true
|
||||
scored: true
|
||||
|
||||
- id: 2.6
|
||||
text: "Ensure that the --peer-auto-tls argument is not set to true (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--peer-auto-tls"
|
||||
env: "ETCD_PEER_AUTO_TLS"
|
||||
set: false
|
||||
- flag: "--peer-auto-tls"
|
||||
env: "ETCD_PEER_AUTO_TLS"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and either remove the --peer-auto-tls parameter or set it to false.
|
||||
--peer-auto-tls=false
|
||||
scored: true
|
||||
|
||||
- id: 2.7
|
||||
text: "Ensure that a unique Certificate Authority is used for etcd (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--trusted-ca-file"
|
||||
env: "ETCD_TRUSTED_CA_FILE"
|
||||
set: true
|
||||
remediation: |
|
||||
[Manual test]
|
||||
Follow the etcd documentation and create a dedicated certificate authority setup for the
|
||||
etcd service.
|
||||
Then, edit the etcd pod specification file $etcdconf on the
|
||||
master node and set the below parameter.
|
||||
--trusted-ca-file=</path/to/ca-file>
|
||||
scored: true
|
||||
1014
cfg/rke-cis-1.24/master.yaml
Normal file
1014
cfg/rke-cis-1.24/master.yaml
Normal file
File diff suppressed because it is too large
Load Diff
459
cfg/rke-cis-1.24/node.yaml
Normal file
459
cfg/rke-cis-1.24/node.yaml
Normal file
@@ -0,0 +1,459 @@
|
||||
---
|
||||
controls:
|
||||
version: "rke-cis-1.24"
|
||||
id: 4
|
||||
text: "Worker Node Security Configuration"
|
||||
type: "node"
|
||||
groups:
|
||||
- id: 4.1
|
||||
text: "Worker Node Configuration Files"
|
||||
checks:
|
||||
- id: 4.1.1
|
||||
text: "Ensure that the kubelet service file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletsvc; then stat -c permissions=%a $kubeletsvc; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example, chmod 600 $kubeletsvc
|
||||
scored: true
|
||||
|
||||
- id: 4.1.2
|
||||
text: "Ensure that the kubelet service file ownership is set to root:root (Automated)"
|
||||
type: "skip"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletsvc; then stat -c %U:%G $kubeletsvc; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chown root:root $kubeletsvc
|
||||
scored: true
|
||||
|
||||
- id: 4.1.3
|
||||
text: "If proxy kubeconfig file exists ensure permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $proxykubeconfig; then stat -c permissions=%a $proxykubeconfig; fi'' '
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
set: true
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chmod 600 $proxykubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 4.1.4
|
||||
text: "If proxy kubeconfig file exists ensure ownership is set to root:root (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $proxykubeconfig; then stat -c %U:%G $proxykubeconfig; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example, chown root:root $proxykubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 4.1.5
|
||||
text: "Ensure that the --kubeconfig kubelet.conf file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletkubeconfig; then stat -c permissions=%a $kubeletkubeconfig; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chmod 600 $kubeletkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 4.1.6
|
||||
text: "Ensure that the --kubeconfig kubelet.conf file ownership is set to root:root (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletkubeconfig; then stat -c %U:%G $kubeletkubeconfig; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chown root:root $kubeletkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 4.1.7
|
||||
text: "Ensure that the certificate authorities file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: '/bin/sh -c "if test -e /node/etc/kubernetes/ssl/kube-ca.pem; then stat -c permissions=%a /node/etc/kubernetes/ssl/kube-ca.pem; else echo \"File not found\"; fi"'
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
- flag: "File not found"
|
||||
remediation: |
|
||||
Run the following command to modify the file permissions of the
|
||||
--client-ca-file chmod 600 <filename>
|
||||
scored: true
|
||||
- id: 4.1.8
|
||||
text: "Ensure that the client certificate authorities file ownership is set to root:root (Automated)"
|
||||
audit: '/bin/sh -c "if test -e /node/etc/kubernetes/ssl/kube-ca.pem; then stat -c %U:%G /node/etc/kubernetes/ssl/kube-ca.pem; else echo \"File not found\"; fi"'
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: root:root
|
||||
- flag: "File not found"
|
||||
remediation: |
|
||||
Run the following command to modify the ownership of the --client-ca-file.
|
||||
chown root:root <filename>
|
||||
scored: true
|
||||
|
||||
- id: 4.1.9
|
||||
text: "If the kubelet config.yaml configuration file is being used validate permissions set to 600 or more restrictive (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletconf; then stat -c permissions=%a $kubeletconf; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Cluster provisioned by RKE doesn't require or maintain a configuration file for the kubelet.
|
||||
All configuration is passed in as arguments at container run time.
|
||||
scored: true
|
||||
|
||||
- id: 4.1.10
|
||||
text: "If the kubelet config.yaml configuration file is being used validate file ownership is set to root:root (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletconf; then stat -c %U:%G $kubeletconf; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Cluster provisioned by RKE doesn’t require or maintain a configuration file for the kubelet.
|
||||
All configuration is passed in as arguments at container run time.
|
||||
scored: true
|
||||
|
||||
- id: 4.2
|
||||
text: "Kubelet"
|
||||
checks:
|
||||
- id: 4.2.1
|
||||
text: "Ensure that the --anonymous-auth argument is set to false (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--anonymous-auth"
|
||||
path: '{.authentication.anonymous.enabled}'
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `authentication: anonymous: enabled` to
|
||||
`false`.
|
||||
If using executable arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
`--anonymous-auth=false`
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.2
|
||||
text: "Ensure that the --authorization-mode argument is not set to AlwaysAllow (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --authorization-mode
|
||||
path: '{.authorization.mode}'
|
||||
compare:
|
||||
op: nothave
|
||||
value: AlwaysAllow
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `authorization.mode` to Webhook. If
|
||||
using executable arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_AUTHZ_ARGS variable.
|
||||
--authorization-mode=Webhook
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.3
|
||||
text: "Ensure that the --client-ca-file argument is set as appropriate (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --client-ca-file
|
||||
path: '{.authentication.x509.clientCAFile}'
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `authentication.x509.clientCAFile` to
|
||||
the location of the client CA file.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_AUTHZ_ARGS variable.
|
||||
--client-ca-file=<path/to/client-ca-file>
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.4
|
||||
text: "Verify that the --read-only-port argument is set to 0 (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--read-only-port"
|
||||
path: '{.readOnlyPort}'
|
||||
compare:
|
||||
op: eq
|
||||
value: 0
|
||||
- flag: "--read-only-port"
|
||||
path: '{.readOnlyPort}'
|
||||
set: false
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `readOnlyPort` to 0.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
--read-only-port=0
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.5
|
||||
text: "Ensure that the --streaming-connection-idle-timeout argument is not set to 0 (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --streaming-connection-idle-timeout
|
||||
path: '{.streamingConnectionIdleTimeout}'
|
||||
compare:
|
||||
op: noteq
|
||||
value: 0
|
||||
- flag: --streaming-connection-idle-timeout
|
||||
path: '{.streamingConnectionIdleTimeout}'
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `streamingConnectionIdleTimeout` to a
|
||||
value other than 0.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
--streaming-connection-idle-timeout=5m
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.6
|
||||
text: "Ensure that the --protect-kernel-defaults argument is set to true (Automated)"
|
||||
type: "skip"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --protect-kernel-defaults
|
||||
path: '{.protectKernelDefaults}'
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `protectKernelDefaults` to `true`.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
--protect-kernel-defaults=true
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
System level configurations are required prior to provisioning the cluster in order for this argument to be set to true.
|
||||
scored: true
|
||||
|
||||
- id: 4.2.7
|
||||
text: "Ensure that the --make-iptables-util-chains argument is set to true (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --make-iptables-util-chains
|
||||
path: '{.makeIPTablesUtilChains}'
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
- flag: --make-iptables-util-chains
|
||||
path: '{.makeIPTablesUtilChains}'
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `makeIPTablesUtilChains` to `true`.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
remove the --make-iptables-util-chains argument from the
|
||||
KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.8
|
||||
text: "Ensure that the --hostname-override argument is not set (Manual)"
|
||||
# This is one of those properties that can only be set as a command line argument.
|
||||
# To check if the property is set as expected, we need to parse the kubelet command
|
||||
# instead reading the Kubelet Configuration file.
|
||||
type: "manual"
|
||||
audit: "/bin/ps -fC $kubeletbin "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --hostname-override
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the kubelet service file $kubeletsvc
|
||||
on each worker node and remove the --hostname-override argument from the
|
||||
KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
Clusters provisioned by RKE set the --hostname-override to avoid any hostname configuration errors
|
||||
scored: false
|
||||
|
||||
- id: 4.2.9
|
||||
text: "Ensure that the eventRecordQPS argument is set to a level which ensures appropriate event capture (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --event-qps
|
||||
path: '{.eventRecordQPS}'
|
||||
compare:
|
||||
op: eq
|
||||
value: 0
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `eventRecordQPS` to an appropriate level.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.10
|
||||
text: "Ensure that the --tls-cert-file and --tls-private-key-file arguments are set as appropriate (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --tls-cert-file
|
||||
path: '{.tlsCertFile}'
|
||||
- flag: --tls-private-key-file
|
||||
path: '{.tlsPrivateKeyFile}'
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `tlsCertFile` to the location
|
||||
of the certificate file to use to identify this Kubelet, and `tlsPrivateKeyFile`
|
||||
to the location of the corresponding private key file.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameters in KUBELET_CERTIFICATE_ARGS variable.
|
||||
--tls-cert-file=<path/to/tls-certificate-file>
|
||||
--tls-private-key-file=<path/to/tls-key-file>
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
When generating serving certificates, functionality could break in conjunction with hostname overrides which are required for certain cloud providers.
|
||||
scored: true
|
||||
|
||||
- id: 4.2.11
|
||||
text: "Ensure that the --rotate-certificates argument is not set to false (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --rotate-certificates
|
||||
path: '{.rotateCertificates}'
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
- flag: --rotate-certificates
|
||||
path: '{.rotateCertificates}'
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to add the line `rotateCertificates` to `true` or
|
||||
remove it altogether to use the default value.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
remove --rotate-certificates=false argument from the KUBELET_CERTIFICATE_ARGS
|
||||
variable.
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.12
|
||||
text: "Verify that the RotateKubeletServerCertificate argument is set to true (Manual)"
|
||||
type: "manual"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: RotateKubeletServerCertificate
|
||||
path: '{.featureGates.RotateKubeletServerCertificate}'
|
||||
compare:
|
||||
op: nothave
|
||||
value: false
|
||||
- flag: RotateKubeletServerCertificate
|
||||
path: '{.featureGates.RotateKubeletServerCertificate}'
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the kubelet service file $kubeletsvc
|
||||
on each worker node and set the below parameter in KUBELET_CERTIFICATE_ARGS variable.
|
||||
--feature-gates=RotateKubeletServerCertificate=true
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
Clusters provisioned by RKE handles certificate rotation directly through RKE.
|
||||
scored: false
|
||||
|
||||
- id: 4.2.13
|
||||
text: "Ensure that the Kubelet only makes use of Strong Cryptographic Ciphers (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --tls-cipher-suites
|
||||
path: '{range .tlsCipherSuites[:]}{}{'',''}{end}'
|
||||
compare:
|
||||
op: valid_elements
|
||||
value: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `TLSCipherSuites` to
|
||||
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
|
||||
or to a subset of these values.
|
||||
If using executable arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the --tls-cipher-suites parameter as follows, or to a subset of these values.
|
||||
--tls-cipher-suites=TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
335
cfg/rke-cis-1.24/policies.yaml
Normal file
335
cfg/rke-cis-1.24/policies.yaml
Normal file
@@ -0,0 +1,335 @@
|
||||
---
|
||||
controls:
|
||||
version: "rke-cis-1.24"
|
||||
id: 5
|
||||
text: "Kubernetes Policies"
|
||||
type: "policies"
|
||||
groups:
|
||||
- id: 5.1
|
||||
text: "RBAC and Service Accounts"
|
||||
checks:
|
||||
- id: 5.1.1
|
||||
text: "Ensure that the cluster-admin role is only used where required (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Identify all clusterrolebindings to the cluster-admin role. Check if they are used and
|
||||
if they need this role or if they could use a role with fewer privileges.
|
||||
Where possible, first bind users to a lower privileged role and then remove the
|
||||
clusterrolebinding to the cluster-admin role :
|
||||
kubectl delete clusterrolebinding [name]
|
||||
scored: false
|
||||
|
||||
- id: 5.1.2
|
||||
text: "Minimize access to secrets (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove get, list and watch access to Secret objects in the cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.3
|
||||
text: "Minimize wildcard use in Roles and ClusterRoles (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible replace any use of wildcards in clusterroles and roles with specific
|
||||
objects or actions.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.4
|
||||
text: "Minimize access to create pods (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove create access to pod objects in the cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.5
|
||||
text: "Ensure that default service accounts are not actively used. (Manual)"
|
||||
type: "manual"
|
||||
audit: check_for_default_sa.sh
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "true"
|
||||
compare:
|
||||
op: eq
|
||||
value: "true"
|
||||
set: true
|
||||
remediation: |
|
||||
Create explicit service accounts wherever a Kubernetes workload requires specific access
|
||||
to the Kubernetes API server.
|
||||
Modify the configuration of each default service account to include this value
|
||||
automountServiceAccountToken: false
|
||||
scored: false
|
||||
|
||||
- id: 5.1.6
|
||||
text: "Ensure that Service Account Tokens are only mounted where necessary (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Modify the definition of pods and service accounts which do not need to mount service
|
||||
account tokens to disable it.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.7
|
||||
text: "Avoid use of system:masters group (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Remove the system:masters group from all users in the cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.8
|
||||
text: "Limit use of the Bind, Impersonate and Escalate permissions in the Kubernetes cluster (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove the impersonate, bind and escalate rights from subjects.
|
||||
scored: false
|
||||
|
||||
- id: 5.2
|
||||
text: "Pod Security Standards"
|
||||
checks:
|
||||
- id: 5.2.1
|
||||
text: "Ensure that the cluster has at least one active policy control mechanism in place (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Ensure that either Pod Security Admission or an external policy control system is in place
|
||||
for every namespace which contains user workloads.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.2
|
||||
text: "Minimize the admission of privileged containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of privileged containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.3
|
||||
text: "Minimize the admission of containers wishing to share the host process ID namespace (Automated)"
|
||||
audit: |
|
||||
kubectl get psp -o json | jq .items[] | jq -r 'select((.spec.hostPID == null) or (.spec.hostPID == false))' | jq .metadata.name | wc -l | xargs -I {} echo '--count={}'
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "kubectl: not found"
|
||||
- flag: "jq: not found"
|
||||
- flag: count
|
||||
compare:
|
||||
op: gt
|
||||
value: 0
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of `hostPID` containers.
|
||||
scored: true
|
||||
|
||||
- id: 5.2.4
|
||||
text: "Minimize the admission of containers wishing to share the host IPC namespace (Automated)"
|
||||
audit: |
|
||||
kubectl get psp -o json | jq .items[] | jq -r 'select((.spec.hostIPC == null) or (.spec.hostIPC == false))' | jq .metadata.name | wc -l | xargs -I {} echo '--count={}'
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "kubectl: not found"
|
||||
- flag: "jq: not found"
|
||||
- flag: count
|
||||
compare:
|
||||
op: gt
|
||||
value: 0
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of `hostIPC` containers.
|
||||
scored: true
|
||||
|
||||
- id: 5.2.5
|
||||
text: "Minimize the admission of containers wishing to share the host network namespace (Automated)"
|
||||
audit: |
|
||||
kubectl get psp -o json | jq .items[] | jq -r 'select((.spec.hostNetwork == null) or (.spec.hostNetwork == false))' | jq .metadata.name | wc -l | xargs -I {} echo '--count={}'
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "kubectl: not found"
|
||||
- flag: "jq: not found"
|
||||
- flag: count
|
||||
compare:
|
||||
op: gt
|
||||
value: 0
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of `hostNetwork` containers.
|
||||
scored: true
|
||||
|
||||
- id: 5.2.6
|
||||
text: "Minimize the admission of containers with allowPrivilegeEscalation (Automated)"
|
||||
audit: |
|
||||
kubectl get psp -o json | jq .items[] | jq -r 'select((.spec.allowPrivilegeEscalation == null) or (.spec.allowPrivilegeEscalation == false))' | jq .metadata.name | wc -l | xargs -I {} echo '--count={}'
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "kubectl: not found"
|
||||
- flag: "jq: not found"
|
||||
- flag: count
|
||||
compare:
|
||||
op: gt
|
||||
value: 0
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers with `.spec.allowPrivilegeEscalation` set to `true`.
|
||||
scored: true
|
||||
|
||||
- id: 5.2.7
|
||||
text: "Minimize the admission of root containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Create a policy for each namespace in the cluster, ensuring that either `MustRunAsNonRoot`
|
||||
or `MustRunAs` with the range of UIDs not including 0, is set.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.8
|
||||
text: "Minimize the admission of containers with the NET_RAW capability (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers with the `NET_RAW` capability.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.9
|
||||
text: "Minimize the admission of containers with added capabilities (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Ensure that `allowedCapabilities` is not present in policies for the cluster unless
|
||||
it is set to an empty array.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.10
|
||||
text: "Minimize the admission of containers with capabilities assigned (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Review the use of capabilites in applications running on your cluster. Where a namespace
|
||||
contains applicaions which do not require any Linux capabities to operate consider adding
|
||||
a PSP which forbids the admission of containers which do not drop all capabilities.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.11
|
||||
text: "Minimize the admission of Windows HostProcess containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers that have `.securityContext.windowsOptions.hostProcess` set to `true`.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.12
|
||||
text: "Minimize the admission of HostPath volumes (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers with `hostPath` volumes.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.13
|
||||
text: "Minimize the admission of containers which use HostPorts (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers which use `hostPort` sections.
|
||||
scored: false
|
||||
|
||||
- id: 5.3
|
||||
text: "Network Policies and CNI"
|
||||
checks:
|
||||
- id: 5.3.1
|
||||
text: "Ensure that the CNI in use supports NetworkPolicies (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
If the CNI plugin in use does not support network policies, consideration should be given to
|
||||
making use of a different plugin, or finding an alternate mechanism for restricting traffic
|
||||
in the Kubernetes cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.3.2
|
||||
text: "Ensure that all Namespaces have NetworkPolicies defined (Manual)"
|
||||
type: "skip"
|
||||
remediation: |
|
||||
Follow the documentation and create NetworkPolicy objects as you need them.
|
||||
scored: false
|
||||
|
||||
- id: 5.4
|
||||
text: "Secrets Management"
|
||||
checks:
|
||||
- id: 5.4.1
|
||||
text: "Prefer using Secrets as files over Secrets as environment variables (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
If possible, rewrite application code to read Secrets from mounted secret files, rather than
|
||||
from environment variables.
|
||||
scored: false
|
||||
|
||||
- id: 5.4.2
|
||||
text: "Consider external secret storage (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Refer to the Secrets management options offered by your cloud provider or a third-party
|
||||
secrets management solution.
|
||||
scored: false
|
||||
|
||||
- id: 5.5
|
||||
text: "Extensible Admission Control"
|
||||
checks:
|
||||
- id: 5.5.1
|
||||
text: "Configure Image Provenance using ImagePolicyWebhook admission controller (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and setup image provenance.
|
||||
scored: false
|
||||
|
||||
- id: 5.7
|
||||
text: "General Policies"
|
||||
checks:
|
||||
- id: 5.7.1
|
||||
text: "Create administrative boundaries between resources using namespaces (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the documentation and create namespaces for objects in your deployment as you need
|
||||
them.
|
||||
scored: false
|
||||
|
||||
- id: 5.7.2
|
||||
text: "Ensure that the seccomp profile is set to docker/default in your Pod definitions (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Use `securityContext` to enable the docker/default seccomp profile in your pod definitions.
|
||||
An example is as below:
|
||||
securityContext:
|
||||
seccompProfile:
|
||||
type: RuntimeDefault
|
||||
scored: false
|
||||
|
||||
- id: 5.7.3
|
||||
text: "Apply SecurityContext to your Pods and Containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and apply SecurityContexts to your Pods. For a
|
||||
suggested list of SecurityContexts, you may refer to the CIS Security Benchmark for Docker
|
||||
Containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.7.4
|
||||
text: "The default namespace should not be used (Automated)"
|
||||
audit: |
|
||||
#!/bin/bash
|
||||
set -eE
|
||||
handle_error() {
|
||||
echo "false"
|
||||
}
|
||||
trap 'handle_error' ERR
|
||||
count=$(kubectl get all -n default -o json | jq .items[] | jq -r 'select((.metadata.name!="kubernetes"))' | jq .metadata.name | wc -l)
|
||||
if [[ ${count} -gt 0 ]]; then
|
||||
echo "false"
|
||||
exit
|
||||
fi
|
||||
echo "true"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "kubectl: not found"
|
||||
- flag: "jq: not found"
|
||||
- flag: "true"
|
||||
remediation: |
|
||||
Ensure that namespaces are created to allow for appropriate segregation of Kubernetes
|
||||
resources and that all new resources are created in a specific namespace.
|
||||
scored: true
|
||||
2
cfg/rke-cis-1.7/config.yaml
Normal file
2
cfg/rke-cis-1.7/config.yaml
Normal file
@@ -0,0 +1,2 @@
|
||||
---
|
||||
## Version-specific settings that override the values in cfg/config.yaml
|
||||
60
cfg/rke-cis-1.7/controlplane.yaml
Normal file
60
cfg/rke-cis-1.7/controlplane.yaml
Normal file
@@ -0,0 +1,60 @@
|
||||
---
|
||||
controls:
|
||||
version: "rke-cis-1.7"
|
||||
id: 3
|
||||
text: "Control Plane Configuration"
|
||||
type: "controlplane"
|
||||
groups:
|
||||
- id: 3.1
|
||||
text: "Authentication and Authorization"
|
||||
checks:
|
||||
- id: 3.1.1
|
||||
text: "Client certificate authentication should not be used for users (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Alternative mechanisms provided by Kubernetes such as the use of OIDC should be
|
||||
implemented in place of client certificates.
|
||||
scored: false
|
||||
- id: 3.1.2
|
||||
text: "Service account token authentication should not be used for users (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Alternative mechanisms provided by Kubernetes such as the use of OIDC should be implemented
|
||||
in place of service account tokens.
|
||||
scored: false
|
||||
- id: 3.1.3
|
||||
text: "Bootstrap token authentication should not be used for users (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Alternative mechanisms provided by Kubernetes such as the use of OIDC should be implemented
|
||||
in place of bootstrap tokens.
|
||||
scored: false
|
||||
|
||||
- id: 3.2
|
||||
text: "Logging"
|
||||
checks:
|
||||
- id: 3.2.1
|
||||
text: "Ensure that a minimal audit policy is created (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--audit-policy-file"
|
||||
set: true
|
||||
remediation: |
|
||||
Create an audit policy file for your cluster.
|
||||
scored: true
|
||||
|
||||
- id: 3.2.2
|
||||
text: "Ensure that the audit policy covers key security concerns (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Review the audit policy provided for the cluster and ensure that it covers
|
||||
at least the following areas,
|
||||
- Access to Secrets managed by the cluster. Care should be taken to only
|
||||
log Metadata for requests to Secrets, ConfigMaps, and TokenReviews, in
|
||||
order to avoid risk of logging sensitive data.
|
||||
- Modification of Pod and Deployment objects.
|
||||
- Use of `pods/exec`, `pods/portforward`, `pods/proxy` and `services/proxy`.
|
||||
For most requests, minimally logging at the Metadata level is recommended
|
||||
(the most basic level of logging).
|
||||
scored: false
|
||||
136
cfg/rke-cis-1.7/etcd.yaml
Normal file
136
cfg/rke-cis-1.7/etcd.yaml
Normal file
@@ -0,0 +1,136 @@
|
||||
---
|
||||
controls:
|
||||
version: "rke-cis-1.7"
|
||||
id: 2
|
||||
text: "Etcd Node Configuration"
|
||||
type: "etcd"
|
||||
groups:
|
||||
- id: 2
|
||||
text: "Etcd Node Configuration"
|
||||
checks:
|
||||
- id: 2.1
|
||||
text: "Ensure that the --cert-file and --key-file arguments are set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "--cert-file"
|
||||
env: "ETCD_CERT_FILE"
|
||||
- flag: "--key-file"
|
||||
env: "ETCD_KEY_FILE"
|
||||
remediation: |
|
||||
Follow the etcd service documentation and configure TLS encryption.
|
||||
Then, edit the etcd pod specification file /etc/kubernetes/manifests/etcd.yaml
|
||||
on the master node and set the below parameters.
|
||||
--cert-file=</path/to/ca-file>
|
||||
--key-file=</path/to/key-file>
|
||||
scored: true
|
||||
|
||||
- id: 2.2
|
||||
text: "Ensure that the --client-cert-auth argument is set to true (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--client-cert-auth"
|
||||
env: "ETCD_CLIENT_CERT_AUTH"
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and set the below parameter.
|
||||
--client-cert-auth="true"
|
||||
scored: true
|
||||
|
||||
- id: 2.3
|
||||
text: "Ensure that the --auto-tls argument is not set to true (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--auto-tls"
|
||||
env: "ETCD_AUTO_TLS"
|
||||
set: false
|
||||
- flag: "--auto-tls"
|
||||
env: "ETCD_AUTO_TLS"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and either remove the --auto-tls parameter or set it to false.
|
||||
--auto-tls=false
|
||||
scored: true
|
||||
|
||||
- id: 2.4
|
||||
text: "Ensure that the --peer-cert-file and --peer-key-file arguments are
|
||||
set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "--peer-cert-file"
|
||||
env: "ETCD_PEER_CERT_FILE"
|
||||
- flag: "--peer-key-file"
|
||||
env: "ETCD_PEER_KEY_FILE"
|
||||
remediation: |
|
||||
Follow the etcd service documentation and configure peer TLS encryption as appropriate
|
||||
for your etcd cluster.
|
||||
Then, edit the etcd pod specification file $etcdconf on the
|
||||
master node and set the below parameters.
|
||||
--peer-client-file=</path/to/peer-cert-file>
|
||||
--peer-key-file=</path/to/peer-key-file>
|
||||
scored: true
|
||||
|
||||
- id: 2.5
|
||||
text: "Ensure that the --peer-client-cert-auth argument is set to true (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--peer-client-cert-auth"
|
||||
env: "ETCD_PEER_CLIENT_CERT_AUTH"
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and set the below parameter.
|
||||
--peer-client-cert-auth=true
|
||||
scored: true
|
||||
|
||||
- id: 2.6
|
||||
text: "Ensure that the --peer-auto-tls argument is not set to true (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--peer-auto-tls"
|
||||
env: "ETCD_PEER_AUTO_TLS"
|
||||
set: false
|
||||
- flag: "--peer-auto-tls"
|
||||
env: "ETCD_PEER_AUTO_TLS"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and either remove the --peer-auto-tls parameter or set it to false.
|
||||
--peer-auto-tls=false
|
||||
scored: true
|
||||
|
||||
- id: 2.7
|
||||
text: "Ensure that a unique Certificate Authority is used for etcd (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--trusted-ca-file"
|
||||
env: "ETCD_TRUSTED_CA_FILE"
|
||||
set: true
|
||||
remediation: |
|
||||
[Manual test]
|
||||
Follow the etcd documentation and create a dedicated certificate authority setup for the
|
||||
etcd service.
|
||||
Then, edit the etcd pod specification file $etcdconf on the
|
||||
master node and set the below parameter.
|
||||
--trusted-ca-file=</path/to/ca-file>
|
||||
scored: true
|
||||
998
cfg/rke-cis-1.7/master.yaml
Normal file
998
cfg/rke-cis-1.7/master.yaml
Normal file
@@ -0,0 +1,998 @@
|
||||
---
|
||||
controls:
|
||||
version: "rke-cis-1.7"
|
||||
id: 1
|
||||
text: "Control Plane Security Configuration"
|
||||
type: "master"
|
||||
groups:
|
||||
- id: 1.1
|
||||
text: "Control Plane Node Configuration Files"
|
||||
checks:
|
||||
- id: 1.1.1
|
||||
text: "Ensure that the API server pod specification file permissions are set to 600 or more restrictive (Automated)"
|
||||
type: "skip"
|
||||
audit: "/bin/sh -c 'if test -e $apiserverconf; then stat -c permissions=%a $apiserverconf; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the
|
||||
control plane node.
|
||||
For example, chmod 600 $apiserverconf
|
||||
Not Applicable - Cluster provisioned by RKE doesn't require or maintain a configuration file for kube-apiserver.
|
||||
All configuration is passed in as arguments at container run time.
|
||||
scored: true
|
||||
|
||||
- id: 1.1.2
|
||||
text: "Ensure that the API server pod specification file ownership is set to root:root (Automated)"
|
||||
type: "skip"
|
||||
audit: "/bin/sh -c 'if test -e $apiserverconf; then stat -c %U:%G $apiserverconf; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chown root:root $apiserverconf
|
||||
Not Applicable - Cluster provisioned by RKE doesn't require or maintain a configuration file for kube-apiserver.
|
||||
All configuration is passed in as arguments at container run time.
|
||||
scored: true
|
||||
|
||||
- id: 1.1.3
|
||||
text: "Ensure that the controller manager pod specification file permissions are set to 600 or more restrictive (Automated)"
|
||||
type: "skip"
|
||||
audit: "/bin/sh -c 'if test -e $controllermanagerconf; then stat -c permissions=%a $controllermanagerconf; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chmod 600 $controllermanagerconf
|
||||
Not Applicable - Cluster provisioned by RKE doesn't require or maintain a configuration file for kube-apiserver.
|
||||
All configuration is passed in as arguments at container run time.
|
||||
scored: true
|
||||
|
||||
- id: 1.1.4
|
||||
text: "Ensure that the controller manager pod specification file ownership is set to root:root (Automated)"
|
||||
type: "skip"
|
||||
audit: "/bin/sh -c 'if test -e $controllermanagerconf; then stat -c %U:%G $controllermanagerconf; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chown root:root $controllermanagerconf
|
||||
Not Applicable - Cluster provisioned by RKE doesn't require or maintain a configuration file for kube-apiserver.
|
||||
All configuration is passed in as arguments at container run time.
|
||||
scored: true
|
||||
|
||||
- id: 1.1.5
|
||||
text: "Ensure that the scheduler pod specification file permissions are set to 600 or more restrictive (Automated)"
|
||||
type: "skip"
|
||||
audit: "/bin/sh -c 'if test -e $schedulerconf; then stat -c permissions=%a $schedulerconf; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chmod 600 $schedulerconf
|
||||
Not Applicable - Cluster provisioned by RKE doesn't require or maintain a configuration file for kube-apiserver.
|
||||
All configuration is passed in as arguments at container run time.
|
||||
scored: true
|
||||
|
||||
- id: 1.1.6
|
||||
text: "Ensure that the scheduler pod specification file ownership is set to root:root (Automated)"
|
||||
type: "skip"
|
||||
audit: "/bin/sh -c 'if test -e $schedulerconf; then stat -c %U:%G $schedulerconf; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chown root:root $schedulerconf
|
||||
Not Applicable - Cluster provisioned by RKE doesn't require or maintain a configuration file for kube-apiserver.
|
||||
All configuration is passed in as arguments at container run time.
|
||||
scored: true
|
||||
|
||||
- id: 1.1.7
|
||||
text: "Ensure that the etcd pod specification file permissions are set to 600 or more restrictive (Automated)"
|
||||
type: "skip"
|
||||
audit: "/bin/sh -c 'if test -e $etcdconf; then find $etcdconf -name '*etcd*' | xargs stat -c permissions=%a; fi'"
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chmod 600 $etcdconf
|
||||
Not Applicable - Cluster provisioned by RKE doesn't require or maintain a configuration file for kube-apiserver.
|
||||
All configuration is passed in as arguments at container run time.
|
||||
scored: true
|
||||
|
||||
- id: 1.1.8
|
||||
text: "Ensure that the etcd pod specification file ownership is set to root:root (Automated)"
|
||||
type: "skip"
|
||||
audit: "/bin/sh -c 'if test -e $etcdconf; then find $etcdconf -name '*etcd*' | xargs stat -c %U:%G; fi'"
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chown root:root $etcdconf
|
||||
Not Applicable - Cluster provisioned by RKE doesn't require or maintain a configuration file for kube-apiserver.
|
||||
All configuration is passed in as arguments at container run time.
|
||||
scored: true
|
||||
|
||||
- id: 1.1.9
|
||||
text: "Ensure that the Container Network Interface file permissions are set to 600 or more restrictive (Manual)"
|
||||
audit: |
|
||||
ps -ef | grep $kubeletbin | grep -- --cni-conf-dir | sed 's%.*cni-conf-dir[= ]\([^ ]*\).*%\1%' | xargs -I{} find {} -mindepth 1 | xargs --no-run-if-empty stat -c permissions=%a
|
||||
find /var/lib/cni/networks -type f 2> /dev/null | xargs --no-run-if-empty stat -c permissions=%a
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chmod 600 <path/to/cni/files>
|
||||
scored: false
|
||||
|
||||
- id: 1.1.10
|
||||
text: "Ensure that the Container Network Interface file ownership is set to root:root (Manual)"
|
||||
audit: |
|
||||
ps -ef | grep $kubeletbin | grep -- --cni-conf-dir | sed 's%.*cni-conf-dir[= ]\([^ ]*\).*%\1%' | xargs -I{} find {} -mindepth 1 | xargs --no-run-if-empty stat -c %U:%G
|
||||
find /var/lib/cni/networks -type f 2> /dev/null | xargs --no-run-if-empty stat -c %U:%G
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chown root:root <path/to/cni/files>
|
||||
scored: false
|
||||
|
||||
- id: 1.1.11
|
||||
text: "Ensure that the etcd data directory permissions are set to 700 or more restrictive (Automated)"
|
||||
audit: stat -c %a /node/var/lib/etcd
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "700"
|
||||
compare:
|
||||
op: eq
|
||||
value: "700"
|
||||
set: true
|
||||
remediation: |
|
||||
On the etcd server node, get the etcd data directory, passed as an argument --data-dir,
|
||||
from the command 'ps -ef | grep etcd'.
|
||||
Run the below command (based on the etcd data directory found above). For example,
|
||||
chmod 700 /var/lib/etcd
|
||||
scored: true
|
||||
|
||||
- id: 1.1.12
|
||||
text: "Ensure that the etcd data directory ownership is set to etcd:etcd (Automated)"
|
||||
type: "skip"
|
||||
audit: "stat -c %U:%G /node/var/lib/etcd"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "etcd:etcd"
|
||||
set: true
|
||||
remediation: |
|
||||
On the etcd server node, get the etcd data directory, passed as an argument --data-dir,
|
||||
from the command 'ps -ef | grep etcd'.
|
||||
Run the below command (based on the etcd data directory found above).
|
||||
For example, chown etcd:etcd /var/lib/etcd
|
||||
Permissive - A system service account is required for etcd data directory ownership.
|
||||
Refer to Rancher's hardening guide for more details on how to configure this ownership.
|
||||
scored: true
|
||||
|
||||
- id: 1.1.13
|
||||
text: "Ensure that the admin.conf file permissions are set to 600 or more restrictive (Automated)"
|
||||
type: "skip"
|
||||
audit: "/bin/sh -c 'if test -e /etc/kubernetes/admin.conf; then stat -c permissions=%a /etc/kubernetes/admin.conf; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chmod 600 /etc/kubernetes/admin.conf
|
||||
Not Applicable - Cluster provisioned by RKE does not store the kubernetes default kubeconfig credentials file on the nodes.
|
||||
scored: true
|
||||
|
||||
- id: 1.1.14
|
||||
text: "Ensure that the admin.conf file ownership is set to root:root (Automated)"
|
||||
type: "skip"
|
||||
audit: "/bin/sh -c 'if test -e /etc/kubernetes/admin.conf; then stat -c %U:%G /etc/kubernetes/admin.conf; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example, chown root:root /etc/kubernetes/admin.conf
|
||||
Not Applicable - Cluster provisioned by RKE does not store the kubernetes default kubeconfig credentials file on the nodes.
|
||||
scored: true
|
||||
|
||||
- id: 1.1.15
|
||||
text: "Ensure that the scheduler.conf file permissions are set to 600 or more restrictive (Automated)"
|
||||
type: "skip"
|
||||
audit: "/bin/sh -c 'if test -e $schedulerkubeconfig; then stat -c permissions=%a $schedulerkubeconfig; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chmod 600 $schedulerkubeconfig
|
||||
Not Applicable - Cluster provisioned by RKE doesn't require or maintain a configuration file for scheduler.
|
||||
All configuration is passed in as arguments at container run time.
|
||||
scored: true
|
||||
|
||||
- id: 1.1.16
|
||||
text: "Ensure that the scheduler.conf file ownership is set to root:root (Automated)"
|
||||
type: "skip"
|
||||
audit: "/bin/sh -c 'if test -e $schedulerkubeconfig; then stat -c %U:%G $schedulerkubeconfig; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chown root:root $schedulerkubeconfig
|
||||
Not Applicable - Cluster provisioned by RKE doesn't require or maintain a configuration file for scheduler.
|
||||
All configuration is passed in as arguments at container run time.
|
||||
scored: true
|
||||
|
||||
- id: 1.1.17
|
||||
text: "Ensure that the controller-manager.conf file permissions are set to 600 or more restrictive (Automated)"
|
||||
type: "skip"
|
||||
audit: "/bin/sh -c 'if test -e $controllermanagerkubeconfig; then stat -c permissions=%a $controllermanagerkubeconfig; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chmod 600 $controllermanagerkubeconfig
|
||||
Not Applicable - Cluster provisioned by RKE doesn't require or maintain a configuration file for controller-manager.
|
||||
All configuration is passed in as arguments at container run time.
|
||||
scored: true
|
||||
|
||||
- id: 1.1.18
|
||||
text: "Ensure that the controller-manager.conf file ownership is set to root:root (Automated)"
|
||||
type: "skip"
|
||||
audit: "/bin/sh -c 'if test -e $controllermanagerkubeconfig; then stat -c %U:%G $controllermanagerkubeconfig; fi'"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chown root:root $controllermanagerkubeconfig
|
||||
Not Applicable - Cluster provisioned by RKE doesn't require or maintain a configuration file for controller-manager.
|
||||
All configuration is passed in as arguments at container run time.
|
||||
scored: true
|
||||
|
||||
- id: 1.1.19
|
||||
text: "Ensure that the Kubernetes PKI directory and file ownership is set to root:root (Automated)"
|
||||
audit: "check_files_owner_in_dir.sh /node/etc/kubernetes/ssl"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "true"
|
||||
compare:
|
||||
op: eq
|
||||
value: "true"
|
||||
set: true
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
chown -R root:root /etc/kubernetes/pki/
|
||||
scored: true
|
||||
|
||||
- id: 1.1.20
|
||||
text: "Ensure that the Kubernetes PKI certificate file permissions are set to 600 or more restrictive (Manual)"
|
||||
audit: "find /node/etc/kubernetes/ssl/ -name '*.pem' ! -name '*key.pem' | xargs stat -c permissions=%a"
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
find /node/etc/kubernetes/ssl/ -name '*.pem' ! -name '*key.pem' -exec chmod -R 600 {} +
|
||||
scored: false
|
||||
|
||||
- id: 1.1.21
|
||||
text: "Ensure that the Kubernetes PKI key file permissions are set to 600 (Manual)"
|
||||
audit: "find /node/etc/kubernetes/ssl/ -name '*key.pem' | xargs stat -c permissions=%a"
|
||||
use_multiple_values: true
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the control plane node.
|
||||
For example,
|
||||
find /node/etc/kubernetes/ssl/ -name '*key.pem' -exec chmod -R 600 {} +
|
||||
scored: false
|
||||
|
||||
- id: 1.2
|
||||
text: "API Server"
|
||||
checks:
|
||||
- id: 1.2.1
|
||||
text: "Ensure that the --anonymous-auth argument is set to false (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--anonymous-auth"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
set: true
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the below parameter.
|
||||
--anonymous-auth=false
|
||||
scored: true
|
||||
|
||||
- id: 1.2.2
|
||||
text: "Ensure that the --token-auth-file parameter is not set (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--token-auth-file"
|
||||
set: false
|
||||
remediation: |
|
||||
Follow the documentation and configure alternate mechanisms for authentication. Then,
|
||||
edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and remove the --token-auth-file=<filename> parameter.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.3
|
||||
text: "Ensure that the --DenyServiceExternalIPs is not set (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--enable-admission-plugins"
|
||||
compare:
|
||||
op: nothave
|
||||
value: "DenyServiceExternalIPs"
|
||||
set: true
|
||||
- flag: "--enable-admission-plugins"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and remove the `DenyServiceExternalIPs`
|
||||
from enabled admission plugins.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.4
|
||||
text: "Ensure that the --kubelet-client-certificate and --kubelet-client-key arguments are set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "--kubelet-client-certificate"
|
||||
- flag: "--kubelet-client-key"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and set up the TLS connection between the
|
||||
apiserver and kubelets. Then, edit API server pod specification file
|
||||
$apiserverconf on the control plane node and set the
|
||||
kubelet client certificate and key parameters as below.
|
||||
--kubelet-client-certificate=<path/to/client-certificate-file>
|
||||
--kubelet-client-key=<path/to/client-key-file>
|
||||
scored: true
|
||||
|
||||
- id: 1.2.5
|
||||
text: "Ensure that the --kubelet-certificate-authority argument is set as appropriate (Automated)"
|
||||
type: "skip"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--kubelet-certificate-authority"
|
||||
set: true
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and setup the TLS connection between
|
||||
the apiserver and kubelets. Then, edit the API server pod specification file
|
||||
$apiserverconf on the control plane node and set the
|
||||
--kubelet-certificate-authority parameter to the path to the cert file for the certificate authority.
|
||||
--kubelet-certificate-authority=<ca-string>
|
||||
Permissive - When generating serving certificates, functionality could break in conjunction with hostname overrides which are required for certain cloud providers.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.6
|
||||
text: "Ensure that the --authorization-mode argument is not set to AlwaysAllow (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--authorization-mode"
|
||||
compare:
|
||||
op: nothave
|
||||
value: "AlwaysAllow"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --authorization-mode parameter to values other than AlwaysAllow.
|
||||
One such example could be as below.
|
||||
--authorization-mode=RBAC
|
||||
scored: true
|
||||
|
||||
- id: 1.2.7
|
||||
text: "Ensure that the --authorization-mode argument includes Node (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--authorization-mode"
|
||||
compare:
|
||||
op: has
|
||||
value: "Node"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --authorization-mode parameter to a value that includes Node.
|
||||
--authorization-mode=Node,RBAC
|
||||
scored: true
|
||||
|
||||
- id: 1.2.8
|
||||
text: "Ensure that the --authorization-mode argument includes RBAC (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--authorization-mode"
|
||||
compare:
|
||||
op: has
|
||||
value: "RBAC"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --authorization-mode parameter to a value that includes RBAC,
|
||||
for example `--authorization-mode=Node,RBAC`.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.9
|
||||
text: "Ensure that the admission control plugin EventRateLimit is set (Manual)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--enable-admission-plugins"
|
||||
compare:
|
||||
op: has
|
||||
value: "EventRateLimit"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and set the desired limits in a configuration file.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
and set the below parameters.
|
||||
--enable-admission-plugins=...,EventRateLimit,...
|
||||
--admission-control-config-file=<path/to/configuration/file>
|
||||
scored: false
|
||||
|
||||
- id: 1.2.10
|
||||
text: "Ensure that the admission control plugin AlwaysAdmit is not set (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--enable-admission-plugins"
|
||||
compare:
|
||||
op: nothave
|
||||
value: AlwaysAdmit
|
||||
- flag: "--enable-admission-plugins"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and either remove the --enable-admission-plugins parameter, or set it to a
|
||||
value that does not include AlwaysAdmit.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.11
|
||||
text: "Ensure that the admission control plugin AlwaysPullImages is set (Manual)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--enable-admission-plugins"
|
||||
compare:
|
||||
op: has
|
||||
value: "AlwaysPullImages"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --enable-admission-plugins parameter to include
|
||||
AlwaysPullImages.
|
||||
--enable-admission-plugins=...,AlwaysPullImages,...
|
||||
scored: false
|
||||
|
||||
- id: 1.2.12
|
||||
text: "Ensure that the admission control plugin SecurityContextDeny is set if PodSecurityPolicy is not used (Manual)"
|
||||
type: "skip"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--enable-admission-plugins"
|
||||
compare:
|
||||
op: has
|
||||
value: "SecurityContextDeny"
|
||||
- flag: "--enable-admission-plugins"
|
||||
compare:
|
||||
op: has
|
||||
value: "PodSecurityPolicy"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --enable-admission-plugins parameter to include
|
||||
SecurityContextDeny, unless PodSecurityPolicy is already in place.
|
||||
--enable-admission-plugins=...,SecurityContextDeny,...
|
||||
Permissive - Enabling Pod Security Policy can cause applications to unexpectedly fail.
|
||||
scored: false
|
||||
|
||||
- id: 1.2.13
|
||||
text: "Ensure that the admission control plugin ServiceAccount is set (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--disable-admission-plugins"
|
||||
compare:
|
||||
op: nothave
|
||||
value: "ServiceAccount"
|
||||
- flag: "--disable-admission-plugins"
|
||||
set: false
|
||||
remediation: |
|
||||
Follow the documentation and create ServiceAccount objects as per your environment.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and ensure that the --disable-admission-plugins parameter is set to a
|
||||
value that does not include ServiceAccount.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.14
|
||||
text: "Ensure that the admission control plugin NamespaceLifecycle is set (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--disable-admission-plugins"
|
||||
compare:
|
||||
op: nothave
|
||||
value: "NamespaceLifecycle"
|
||||
- flag: "--disable-admission-plugins"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --disable-admission-plugins parameter to
|
||||
ensure it does not include NamespaceLifecycle.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.15
|
||||
text: "Ensure that the admission control plugin NodeRestriction is set (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--enable-admission-plugins"
|
||||
compare:
|
||||
op: has
|
||||
value: "NodeRestriction"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and configure NodeRestriction plug-in on kubelets.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --enable-admission-plugins parameter to a
|
||||
value that includes NodeRestriction.
|
||||
--enable-admission-plugins=...,NodeRestriction,...
|
||||
scored: true
|
||||
|
||||
- id: 1.2.16
|
||||
text: "Ensure that the --secure-port argument is not set to 0 - NoteThis recommendation is obsolete and will be deleted per the consensus process (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--secure-port"
|
||||
compare:
|
||||
op: gt
|
||||
value: 0
|
||||
- flag: "--secure-port"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and either remove the --secure-port parameter or
|
||||
set it to a different (non-zero) desired port.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.17
|
||||
text: "Ensure that the --profiling argument is set to false (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--profiling"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the below parameter.
|
||||
--profiling=false
|
||||
scored: true
|
||||
|
||||
- id: 1.2.18
|
||||
text: "Ensure that the --audit-log-path argument is set (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--audit-log-path"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --audit-log-path parameter to a suitable path and
|
||||
file where you would like audit logs to be written, for example,
|
||||
--audit-log-path=/var/log/apiserver/audit.log
|
||||
scored: true
|
||||
|
||||
- id: 1.2.19
|
||||
text: "Ensure that the --audit-log-maxage argument is set to 30 or as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--audit-log-maxage"
|
||||
compare:
|
||||
op: gte
|
||||
value: 30
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --audit-log-maxage parameter to 30
|
||||
or as an appropriate number of days, for example,
|
||||
--audit-log-maxage=30
|
||||
scored: true
|
||||
|
||||
- id: 1.2.20
|
||||
text: "Ensure that the --audit-log-maxbackup argument is set to 10 or as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--audit-log-maxbackup"
|
||||
compare:
|
||||
op: gte
|
||||
value: 10
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --audit-log-maxbackup parameter to 10 or to an appropriate
|
||||
value. For example,
|
||||
--audit-log-maxbackup=10
|
||||
scored: true
|
||||
|
||||
- id: 1.2.21
|
||||
text: "Ensure that the --audit-log-maxsize argument is set to 100 or as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--audit-log-maxsize"
|
||||
compare:
|
||||
op: gte
|
||||
value: 100
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --audit-log-maxsize parameter to an appropriate size in MB.
|
||||
For example, to set it as 100 MB, --audit-log-maxsize=100
|
||||
scored: true
|
||||
|
||||
- id: 1.2.22
|
||||
text: "Ensure that the --request-timeout argument is set as appropriate (Manual)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
type: manual
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
and set the below parameter as appropriate and if needed.
|
||||
For example, --request-timeout=300s
|
||||
scored: false
|
||||
|
||||
- id: 1.2.23
|
||||
text: "Ensure that the --service-account-lookup argument is set to true (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--service-account-lookup"
|
||||
set: false
|
||||
- flag: "--service-account-lookup"
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the below parameter.
|
||||
--service-account-lookup=true
|
||||
Alternatively, you can delete the --service-account-lookup parameter from this file so
|
||||
that the default takes effect.
|
||||
scored: true
|
||||
|
||||
- id: 1.2.24
|
||||
text: "Ensure that the --service-account-key-file argument is set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--service-account-key-file"
|
||||
remediation: |
|
||||
Edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --service-account-key-file parameter
|
||||
to the public key file for service accounts. For example,
|
||||
--service-account-key-file=<filename>
|
||||
scored: true
|
||||
|
||||
- id: 1.2.25
|
||||
text: "Ensure that the --etcd-certfile and --etcd-keyfile arguments are set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "--etcd-certfile"
|
||||
- flag: "--etcd-keyfile"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and set up the TLS connection between the apiserver and etcd.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the etcd certificate and key file parameters.
|
||||
--etcd-certfile=<path/to/client-certificate-file>
|
||||
--etcd-keyfile=<path/to/client-key-file>
|
||||
scored: true
|
||||
|
||||
- id: 1.2.26
|
||||
text: "Ensure that the --tls-cert-file and --tls-private-key-file arguments are set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "--tls-cert-file"
|
||||
- flag: "--tls-private-key-file"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and set up the TLS connection on the apiserver.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the TLS certificate and private key file parameters.
|
||||
--tls-cert-file=<path/to/tls-certificate-file>
|
||||
--tls-private-key-file=<path/to/tls-key-file>
|
||||
scored: true
|
||||
|
||||
- id: 1.2.27
|
||||
text: "Ensure that the --client-ca-file argument is set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--client-ca-file"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and set up the TLS connection on the apiserver.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the client certificate authority file.
|
||||
--client-ca-file=<path/to/client-ca-file>
|
||||
scored: true
|
||||
|
||||
- id: 1.2.28
|
||||
text: "Ensure that the --etcd-cafile argument is set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--etcd-cafile"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and set up the TLS connection between the apiserver and etcd.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the etcd certificate authority file parameter.
|
||||
--etcd-cafile=<path/to/ca-file>
|
||||
scored: true
|
||||
|
||||
- id: 1.2.29
|
||||
text: "Ensure that the --encryption-provider-config argument is set as appropriate (Manual)"
|
||||
type: "skip"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--encryption-provider-config"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and configure a EncryptionConfig file.
|
||||
Then, edit the API server pod specification file $apiserverconf
|
||||
on the control plane node and set the --encryption-provider-config parameter to the path of that file.
|
||||
For example, --encryption-provider-config=</path/to/EncryptionConfig/File>
|
||||
Permissive - Enabling encryption changes how data can be recovered as data is encrypted.
|
||||
scored: false
|
||||
|
||||
- id: 1.2.30
|
||||
text: "Ensure that encryption providers are appropriately configured (Manual)"
|
||||
type: "skip"
|
||||
audit: |
|
||||
ENCRYPTION_PROVIDER_CONFIG=$(ps -ef | grep $apiserverbin | grep -- --encryption-provider-config | sed 's%.*encryption-provider-config[= ]\([^ ]*\).*%\1%')
|
||||
if test -e $ENCRYPTION_PROVIDER_CONFIG; then grep -A1 'providers:' $ENCRYPTION_PROVIDER_CONFIG | tail -n1 | grep -o "[A-Za-z]*" | sed 's/^/provider=/'; fi
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "provider"
|
||||
compare:
|
||||
op: valid_elements
|
||||
value: "aescbc,kms,secretbox"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and configure a EncryptionConfig file.
|
||||
In this file, choose aescbc, kms or secretbox as the encryption provider.
|
||||
Permissive - Enabling encryption changes how data can be recovered as data is encrypted.
|
||||
scored: false
|
||||
|
||||
- id: 1.2.31
|
||||
text: "Ensure that the API Server only makes use of Strong Cryptographic Ciphers (Manual)"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--tls-cipher-suites"
|
||||
compare:
|
||||
op: valid_elements
|
||||
value: "TLS_AES_128_GCM_SHA256,TLS_AES_256_GCM_SHA384,TLS_CHACHA20_POLY1305_SHA256,TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256,TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256,TLS_RSA_WITH_3DES_EDE_CBC_SHA,TLS_RSA_WITH_AES_128_CBC_SHA,TLS_RSA_WITH_AES_128_GCM_SHA256,TLS_RSA_WITH_AES_256_CBC_SHA,TLS_RSA_WITH_AES_256_GCM_SHA384"
|
||||
remediation: |
|
||||
Edit the API server pod specification file /etc/kubernetes/manifests/kube-apiserver.yaml
|
||||
on the control plane node and set the below parameter.
|
||||
--tls-cipher-suites=TLS_AES_128_GCM_SHA256,TLS_AES_256_GCM_SHA384,TLS_CHACHA20_POLY1305_SHA256,
|
||||
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
|
||||
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
|
||||
TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256,
|
||||
TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
|
||||
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,
|
||||
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256,TLS_RSA_WITH_3DES_EDE_CBC_SHA,TLS_RSA_WITH_AES_128_CBC_SHA,
|
||||
TLS_RSA_WITH_AES_128_GCM_SHA256,TLS_RSA_WITH_AES_256_CBC_SHA,TLS_RSA_WITH_AES_256_GCM_SHA384
|
||||
scored: false
|
||||
|
||||
- id: 1.3
|
||||
text: "Controller Manager"
|
||||
checks:
|
||||
- id: 1.3.1
|
||||
text: "Ensure that the --terminated-pod-gc-threshold argument is set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | grep $controllermanagerbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--terminated-pod-gc-threshold"
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node and set the --terminated-pod-gc-threshold to an appropriate threshold,
|
||||
for example, --terminated-pod-gc-threshold=10
|
||||
scored: true
|
||||
|
||||
- id: 1.3.2
|
||||
text: "Ensure that the --profiling argument is set to false (Automated)"
|
||||
audit: "/bin/ps -ef | grep $controllermanagerbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--profiling"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node and set the below parameter.
|
||||
--profiling=false
|
||||
scored: true
|
||||
|
||||
- id: 1.3.3
|
||||
text: "Ensure that the --use-service-account-credentials argument is set to true (Automated)"
|
||||
audit: "/bin/ps -ef | grep $controllermanagerbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--use-service-account-credentials"
|
||||
compare:
|
||||
op: noteq
|
||||
value: false
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node to set the below parameter.
|
||||
--use-service-account-credentials=true
|
||||
scored: true
|
||||
|
||||
- id: 1.3.4
|
||||
text: "Ensure that the --service-account-private-key-file argument is set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | grep $controllermanagerbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--service-account-private-key-file"
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node and set the --service-account-private-key-file parameter
|
||||
to the private key file for service accounts.
|
||||
--service-account-private-key-file=<filename>
|
||||
scored: true
|
||||
|
||||
- id: 1.3.5
|
||||
text: "Ensure that the --root-ca-file argument is set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | grep $controllermanagerbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--root-ca-file"
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node and set the --root-ca-file parameter to the certificate bundle file`.
|
||||
--root-ca-file=<path/to/file>
|
||||
scored: true
|
||||
|
||||
- id: 1.3.6
|
||||
text: "Ensure that the RotateKubeletServerCertificate argument is set to true (Automated)"
|
||||
type: "skip"
|
||||
audit: "/bin/ps -ef | grep $controllermanagerbin | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--feature-gates"
|
||||
compare:
|
||||
op: nothave
|
||||
value: "RotateKubeletServerCertificate=false"
|
||||
set: true
|
||||
- flag: "--feature-gates"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node and set the --feature-gates parameter to include RotateKubeletServerCertificate=true.
|
||||
--feature-gates=RotateKubeletServerCertificate=true
|
||||
Cluster provisioned by RKE handles certificate rotation directly through RKE.
|
||||
scored: true
|
||||
|
||||
- id: 1.3.7
|
||||
text: "Ensure that the --bind-address argument is set to 127.0.0.1 (Automated)"
|
||||
audit: "/bin/ps -ef | grep $controllermanagerbin | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--bind-address"
|
||||
compare:
|
||||
op: eq
|
||||
value: "127.0.0.1"
|
||||
- flag: "--bind-address"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the Controller Manager pod specification file $controllermanagerconf
|
||||
on the control plane node and ensure the correct value for the --bind-address parameter
|
||||
scored: true
|
||||
|
||||
- id: 1.4
|
||||
text: "Scheduler"
|
||||
checks:
|
||||
- id: 1.4.1
|
||||
text: "Ensure that the --profiling argument is set to false (Automated)"
|
||||
audit: "/bin/ps -ef | grep $schedulerbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--profiling"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
Edit the Scheduler pod specification file $schedulerconf file
|
||||
on the control plane node and set the below parameter.
|
||||
--profiling=false
|
||||
scored: true
|
||||
|
||||
- id: 1.4.2
|
||||
text: "Ensure that the --bind-address argument is set to 127.0.0.1 (Automated)"
|
||||
audit: "/bin/ps -ef | grep $schedulerbin | grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--bind-address"
|
||||
compare:
|
||||
op: eq
|
||||
value: "127.0.0.1"
|
||||
- flag: "--bind-address"
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the Scheduler pod specification file $schedulerconf
|
||||
on the control plane node and ensure the correct value for the --bind-address parameter
|
||||
scored: true
|
||||
462
cfg/rke-cis-1.7/node.yaml
Normal file
462
cfg/rke-cis-1.7/node.yaml
Normal file
@@ -0,0 +1,462 @@
|
||||
---
|
||||
controls:
|
||||
version: "rke-cis-1.7"
|
||||
id: 4
|
||||
text: "Worker Node Security Configuration"
|
||||
type: "node"
|
||||
groups:
|
||||
- id: 4.1
|
||||
text: "Worker Node Configuration Files"
|
||||
checks:
|
||||
- id: 4.1.1
|
||||
text: "Ensure that the kubelet service file permissions are set to 600 or more restrictive (Automated)"
|
||||
type: "skip"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletsvc; then stat -c permissions=%a $kubeletsvc; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example, chmod 600 $kubeletsvc
|
||||
Not Applicable - Clusters provisioned by RKE doesn’t require or maintain a configuration file for the kubelet service.
|
||||
All configuration is passed in as arguments at container run time.
|
||||
scored: true
|
||||
|
||||
- id: 4.1.2
|
||||
text: "Ensure that the kubelet service file ownership is set to root:root (Automated)"
|
||||
type: "skip"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletsvc; then stat -c %U:%G $kubeletsvc; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chown root:root $kubeletsvc
|
||||
Not Applicable - Clusters provisioned by RKE doesn’t require or maintain a configuration file for the kubelet service.
|
||||
All configuration is passed in as arguments at container run time.
|
||||
scored: true
|
||||
|
||||
- id: 4.1.3
|
||||
text: "If proxy kubeconfig file exists ensure permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $proxykubeconfig; then stat -c permissions=%a $proxykubeconfig; fi'' '
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
set: true
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chmod 600 $proxykubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 4.1.4
|
||||
text: "If proxy kubeconfig file exists ensure ownership is set to root:root (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $proxykubeconfig; then stat -c %U:%G $proxykubeconfig; fi'' '
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example, chown root:root $proxykubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 4.1.5
|
||||
text: "Ensure that the --kubeconfig kubelet.conf file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletkubeconfig; then stat -c permissions=%a $kubeletkubeconfig; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chmod 600 $kubeletkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 4.1.6
|
||||
text: "Ensure that the --kubeconfig kubelet.conf file ownership is set to root:root (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletkubeconfig; then stat -c %U:%G $kubeletkubeconfig; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chown root:root $kubeletkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 4.1.7
|
||||
text: "Ensure that the certificate authorities file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: "stat -c permissions=%a /node/etc/kubernetes/ssl/kube-ca.pem"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the following command to modify the file permissions of the
|
||||
--client-ca-file chmod 600 <filename>
|
||||
scored: true
|
||||
|
||||
- id: 4.1.8
|
||||
text: "Ensure that the client certificate authorities file ownership is set to root:root (Automated)"
|
||||
audit: "stat -c %U:%G /node/etc/kubernetes/ssl/kube-ca.pem"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Run the following command to modify the ownership of the --client-ca-file.
|
||||
chown root:root <filename>
|
||||
scored: true
|
||||
|
||||
- id: 4.1.9
|
||||
text: "If the kubelet config.yaml configuration file is being used validate permissions set to 600 or more restrictive (Automated)"
|
||||
type: "skip"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletconf; then stat -c permissions=%a $kubeletconf; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the following command (using the config file location identified in the Audit step)
|
||||
chmod 600 $kubeletconf
|
||||
Not Applicable - Clusters provisioned by RKE do not require or maintain a configuration file for the kubelet.
|
||||
All configuration is passed in as arguments at container run time.
|
||||
scored: true
|
||||
|
||||
- id: 4.1.10
|
||||
text: "If the kubelet config.yaml configuration file is being used validate file ownership is set to root:root (Manual)"
|
||||
type: "skip"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletconf; then stat -c %U:%G $kubeletconf; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Run the following command (using the config file location identified in the Audit step)
|
||||
chown root:root $kubeletconf
|
||||
Not Applicable - Clusters provisioned by RKE doesn’t require or maintain a configuration file for the kubelet.
|
||||
All configuration is passed in as arguments at container run time.
|
||||
scored: false
|
||||
|
||||
- id: 4.2
|
||||
text: "Kubelet"
|
||||
checks:
|
||||
- id: 4.2.1
|
||||
text: "Ensure that the --anonymous-auth argument is set to false (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--anonymous-auth"
|
||||
path: '{.authentication.anonymous.enabled}'
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `authentication: anonymous: enabled` to
|
||||
`false`.
|
||||
If using executable arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
`--anonymous-auth=false`
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.2
|
||||
text: "Ensure that the --authorization-mode argument is not set to AlwaysAllow (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --authorization-mode
|
||||
path: '{.authorization.mode}'
|
||||
compare:
|
||||
op: nothave
|
||||
value: AlwaysAllow
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `authorization.mode` to Webhook. If
|
||||
using executable arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_AUTHZ_ARGS variable.
|
||||
--authorization-mode=Webhook
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.3
|
||||
text: "Ensure that the --client-ca-file argument is set as appropriate (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --client-ca-file
|
||||
path: '{.authentication.x509.clientCAFile}'
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `authentication.x509.clientCAFile` to
|
||||
the location of the client CA file.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_AUTHZ_ARGS variable.
|
||||
--client-ca-file=<path/to/client-ca-file>
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.4
|
||||
text: "Verify that the --read-only-port argument is set to 0 (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--read-only-port"
|
||||
path: '{.readOnlyPort}'
|
||||
compare:
|
||||
op: eq
|
||||
value: 0
|
||||
- flag: "--read-only-port"
|
||||
path: '{.readOnlyPort}'
|
||||
set: false
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `readOnlyPort` to 0.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
--read-only-port=0
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.5
|
||||
text: "Ensure that the --streaming-connection-idle-timeout argument is not set to 0 (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --streaming-connection-idle-timeout
|
||||
path: '{.streamingConnectionIdleTimeout}'
|
||||
compare:
|
||||
op: noteq
|
||||
value: 0
|
||||
- flag: --streaming-connection-idle-timeout
|
||||
path: '{.streamingConnectionIdleTimeout}'
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `streamingConnectionIdleTimeout` to a
|
||||
value other than 0.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
--streaming-connection-idle-timeout=5m
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.6
|
||||
text: "Ensure that the --make-iptables-util-chains argument is set to true (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --make-iptables-util-chains
|
||||
path: '{.makeIPTablesUtilChains}'
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
- flag: --make-iptables-util-chains
|
||||
path: '{.makeIPTablesUtilChains}'
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `makeIPTablesUtilChains` to `true`.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
remove the --make-iptables-util-chains argument from the
|
||||
KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.7
|
||||
text: "Ensure that the --hostname-override argument is not set (Manual)"
|
||||
# This is one of those properties that can only be set as a command line argument.
|
||||
# To check if the property is set as expected, we need to parse the kubelet command
|
||||
# instead reading the Kubelet Configuration file.
|
||||
type: "skip"
|
||||
audit: "/bin/ps -fC $kubeletbin "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --hostname-override
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the kubelet service file $kubeletsvc
|
||||
on each worker node and remove the --hostname-override argument from the
|
||||
KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
Not Applicable - Clusters provisioned by RKE set the --hostname-override to avoid any hostname configuration errors
|
||||
scored: false
|
||||
|
||||
- id: 4.2.8
|
||||
text: "Ensure that the eventRecordQPS argument is set to a level which ensures appropriate event capture (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --event-qps
|
||||
path: '{.eventRecordQPS}'
|
||||
compare:
|
||||
op: gte
|
||||
value: 0
|
||||
- flag: --event-qps
|
||||
path: '{.eventRecordQPS}'
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `eventRecordQPS` to an appropriate level.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.9
|
||||
text: "Ensure that the --tls-cert-file and --tls-private-key-file arguments are set as appropriate (Manual)"
|
||||
type: "skip"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --tls-cert-file
|
||||
path: '{.tlsCertFile}'
|
||||
- flag: --tls-private-key-file
|
||||
path: '{.tlsPrivateKeyFile}'
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `tlsCertFile` to the location
|
||||
of the certificate file to use to identify this Kubelet, and `tlsPrivateKeyFile`
|
||||
to the location of the corresponding private key file.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameters in KUBELET_CERTIFICATE_ARGS variable.
|
||||
--tls-cert-file=<path/to/tls-certificate-file>
|
||||
--tls-private-key-file=<path/to/tls-key-file>
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
Permissive - When generating serving certificates, functionality could break in conjunction with hostname overrides which are required for certain cloud providers.
|
||||
scored: false
|
||||
|
||||
- id: 4.2.10
|
||||
text: "Ensure that the --rotate-certificates argument is not set to false (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --rotate-certificates
|
||||
path: '{.rotateCertificates}'
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
- flag: --rotate-certificates
|
||||
path: '{.rotateCertificates}'
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to add the line `rotateCertificates` to `true` or
|
||||
remove it altogether to use the default value.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
remove --rotate-certificates=false argument from the KUBELET_CERTIFICATE_ARGS
|
||||
variable.
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.11
|
||||
text: "Verify that the RotateKubeletServerCertificate argument is set to true (Manual)"
|
||||
type: "skip"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: RotateKubeletServerCertificate
|
||||
path: '{.featureGates.RotateKubeletServerCertificate}'
|
||||
compare:
|
||||
op: nothave
|
||||
value: false
|
||||
- flag: RotateKubeletServerCertificate
|
||||
path: '{.featureGates.RotateKubeletServerCertificate}'
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the kubelet service file $kubeletsvc
|
||||
on each worker node and set the below parameter in KUBELET_CERTIFICATE_ARGS variable.
|
||||
--feature-gates=RotateKubeletServerCertificate=true
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
Not Applicable - Clusters provisioned by RKE handles certificate rotation directly through RKE.
|
||||
scored: false
|
||||
|
||||
- id: 4.2.12
|
||||
text: "Ensure that the Kubelet only makes use of Strong Cryptographic Ciphers (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --tls-cipher-suites
|
||||
path: '{range .tlsCipherSuites[:]}{}{'',''}{end}'
|
||||
compare:
|
||||
op: valid_elements
|
||||
value: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `TLSCipherSuites` to
|
||||
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
|
||||
or to a subset of these values.
|
||||
If using executable arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the --tls-cipher-suites parameter as follows, or to a subset of these values.
|
||||
--tls-cipher-suites=TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.13
|
||||
text: "Ensure that a limit is set on pod PIDs (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/sh -c 'if test -e $kubeletconf; then /bin/cat $kubeletconf; fi' "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --pod-max-pids
|
||||
path: '{.podPidsLimit}'
|
||||
remediation: |
|
||||
Decide on an appropriate level for this parameter and set it,
|
||||
either via the --pod-max-pids command line parameter or the PodPidsLimit configuration file setting.
|
||||
scored: false
|
||||
318
cfg/rke-cis-1.7/policies.yaml
Normal file
318
cfg/rke-cis-1.7/policies.yaml
Normal file
@@ -0,0 +1,318 @@
|
||||
---
|
||||
controls:
|
||||
version: "rke-cis-1.7"
|
||||
id: 5
|
||||
text: "Kubernetes Policies"
|
||||
type: "policies"
|
||||
groups:
|
||||
- id: 5.1
|
||||
text: "RBAC and Service Accounts"
|
||||
checks:
|
||||
- id: 5.1.1
|
||||
text: "Ensure that the cluster-admin role is only used where required (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Identify all clusterrolebindings to the cluster-admin role. Check if they are used and
|
||||
if they need this role or if they could use a role with fewer privileges.
|
||||
Where possible, first bind users to a lower privileged role and then remove the
|
||||
clusterrolebinding to the cluster-admin role :
|
||||
kubectl delete clusterrolebinding [name]
|
||||
scored: false
|
||||
|
||||
- id: 5.1.2
|
||||
text: "Minimize access to secrets (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove get, list and watch access to Secret objects in the cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.3
|
||||
text: "Minimize wildcard use in Roles and ClusterRoles (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible replace any use of wildcards in clusterroles and roles with specific
|
||||
objects or actions.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.4
|
||||
text: "Minimize access to create pods (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove create access to pod objects in the cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.5
|
||||
text: "Ensure that default service accounts are not actively used. (Manual)"
|
||||
type: "skip"
|
||||
audit: check_for_default_sa.sh
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "true"
|
||||
compare:
|
||||
op: eq
|
||||
value: "true"
|
||||
set: true
|
||||
remediation: |
|
||||
Create explicit service accounts wherever a Kubernetes workload requires specific access
|
||||
to the Kubernetes API server.
|
||||
Modify the configuration of each default service account to include this value
|
||||
automountServiceAccountToken: false
|
||||
Permissive - Kubernetes provides default service accounts to be used.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.6
|
||||
text: "Ensure that Service Account Tokens are only mounted where necessary (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Modify the definition of pods and service accounts which do not need to mount service
|
||||
account tokens to disable it.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.7
|
||||
text: "Avoid use of system:masters group (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Remove the system:masters group from all users in the cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.8
|
||||
text: "Limit use of the Bind, Impersonate and Escalate permissions in the Kubernetes cluster (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove the impersonate, bind and escalate rights from subjects.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.9
|
||||
text: "Minimize access to create persistent volumes (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove create access to PersistentVolume objects in the cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.10
|
||||
text: "Minimize access to the proxy sub-resource of nodes (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove access to the proxy sub-resource of node objects.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.11
|
||||
text: "Minimize access to the approval sub-resource of certificatesigningrequests objects (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove access to the approval sub-resource of certificatesigningrequest objects.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.12
|
||||
text: "Minimize access to webhook configuration objects (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove access to the validatingwebhookconfigurations or mutatingwebhookconfigurations objects
|
||||
scored: false
|
||||
|
||||
- id: 5.1.13
|
||||
text: "Minimize access to the service account token creation (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove access to the token sub-resource of serviceaccount objects.
|
||||
scored: false
|
||||
|
||||
- id: 5.2
|
||||
text: "Pod Security Standards"
|
||||
checks:
|
||||
- id: 5.2.1
|
||||
text: "Ensure that the cluster has at least one active policy control mechanism in place (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Ensure that either Pod Security Admission or an external policy control system is in place
|
||||
for every namespace which contains user workloads.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.2
|
||||
text: "Minimize the admission of privileged containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of privileged containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.3
|
||||
text: "Minimize the admission of containers wishing to share the host process ID namespace (Automated)"
|
||||
type: "skip"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of `hostPID` containers.
|
||||
Permissive - Enabling Pod Security Policy can cause applications to unexpectedly fail.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.4
|
||||
text: "Minimize the admission of containers wishing to share the host IPC namespace (Automated)"
|
||||
type: "skip"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of `hostIPC` containers.
|
||||
Permissive - Enabling Pod Security Policy can cause applications to unexpectedly fail.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.5
|
||||
text: "Minimize the admission of containers wishing to share the host network namespace (Automated)"
|
||||
type: "skip"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of `hostNetwork` containers.
|
||||
Permissive - Enabling Pod Security Policy can cause applications to unexpectedly fail.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.6
|
||||
text: "Minimize the admission of containers with allowPrivilegeEscalation (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers with `.spec.allowPrivilegeEscalation` set to `true`.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.7
|
||||
text: "Minimize the admission of root containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Create a policy for each namespace in the cluster, ensuring that either `MustRunAsNonRoot`
|
||||
or `MustRunAs` with the range of UIDs not including 0, is set.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.8
|
||||
text: "Minimize the admission of containers with the NET_RAW capability (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers with the `NET_RAW` capability.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.9
|
||||
text: "Minimize the admission of containers with added capabilities (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Ensure that `allowedCapabilities` is not present in policies for the cluster unless
|
||||
it is set to an empty array.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.10
|
||||
text: "Minimize the admission of containers with capabilities assigned (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Review the use of capabilites in applications running on your cluster. Where a namespace
|
||||
contains applicaions which do not require any Linux capabities to operate consider adding
|
||||
a PSP which forbids the admission of containers which do not drop all capabilities.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.11
|
||||
text: "Minimize the admission of Windows HostProcess containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers that have `.securityContext.windowsOptions.hostProcess` set to `true`.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.12
|
||||
text: "Minimize the admission of HostPath volumes (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers with `hostPath` volumes.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.13
|
||||
text: "Minimize the admission of containers which use HostPorts (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers which use `hostPort` sections.
|
||||
scored: false
|
||||
|
||||
- id: 5.3
|
||||
text: "Network Policies and CNI"
|
||||
checks:
|
||||
- id: 5.3.1
|
||||
text: "Ensure that the CNI in use supports NetworkPolicies (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
If the CNI plugin in use does not support network policies, consideration should be given to
|
||||
making use of a different plugin, or finding an alternate mechanism for restricting traffic
|
||||
in the Kubernetes cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.3.2
|
||||
text: "Ensure that all Namespaces have NetworkPolicies defined (Manual)"
|
||||
type: "skip"
|
||||
remediation: |
|
||||
Follow the documentation and create NetworkPolicy objects as you need them.
|
||||
Permissive - Enabling Network Policies can prevent certain applications from communicating with each other.
|
||||
scored: false
|
||||
|
||||
- id: 5.4
|
||||
text: "Secrets Management"
|
||||
checks:
|
||||
- id: 5.4.1
|
||||
text: "Prefer using Secrets as files over Secrets as environment variables (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
If possible, rewrite application code to read Secrets from mounted secret files, rather than
|
||||
from environment variables.
|
||||
scored: false
|
||||
|
||||
- id: 5.4.2
|
||||
text: "Consider external secret storage (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Refer to the Secrets management options offered by your cloud provider or a third-party
|
||||
secrets management solution.
|
||||
scored: false
|
||||
|
||||
- id: 5.5
|
||||
text: "Extensible Admission Control"
|
||||
checks:
|
||||
- id: 5.5.1
|
||||
text: "Configure Image Provenance using ImagePolicyWebhook admission controller (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and setup image provenance.
|
||||
scored: false
|
||||
|
||||
- id: 5.7
|
||||
text: "General Policies"
|
||||
checks:
|
||||
- id: 5.7.1
|
||||
text: "Create administrative boundaries between resources using namespaces (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the documentation and create namespaces for objects in your deployment as you need
|
||||
them.
|
||||
scored: false
|
||||
|
||||
- id: 5.7.2
|
||||
text: "Ensure that the seccomp profile is set to docker/default in your Pod definitions (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Use `securityContext` to enable the docker/default seccomp profile in your pod definitions.
|
||||
An example is as below:
|
||||
securityContext:
|
||||
seccompProfile:
|
||||
type: RuntimeDefault
|
||||
scored: false
|
||||
|
||||
- id: 5.7.3
|
||||
text: "Apply SecurityContext to your Pods and Containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and apply SecurityContexts to your Pods. For a
|
||||
suggested list of SecurityContexts, you may refer to the CIS Security Benchmark for Docker
|
||||
Containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.7.4
|
||||
text: "The default namespace should not be used (Manual)"
|
||||
type: "skip"
|
||||
remediation: |
|
||||
Ensure that namespaces are created to allow for appropriate segregation of Kubernetes
|
||||
resources and that all new resources are created in a specific namespace.
|
||||
Permissive - Kubernetes provides a default namespace.
|
||||
scored: false
|
||||
2
cfg/rke2-cis-1.23/config.yaml
Normal file
2
cfg/rke2-cis-1.23/config.yaml
Normal file
@@ -0,0 +1,2 @@
|
||||
---
|
||||
## Version-specific settings that override the values in cfg/config.yaml
|
||||
50
cfg/rke2-cis-1.23/controlplane.yaml
Normal file
50
cfg/rke2-cis-1.23/controlplane.yaml
Normal file
@@ -0,0 +1,50 @@
|
||||
---
|
||||
controls:
|
||||
version: "rke2-cis-1.23"
|
||||
id: 3
|
||||
text: "Control Plane Configuration"
|
||||
type: "controlplane"
|
||||
groups:
|
||||
- id: 3.1
|
||||
text: "Authentication and Authorization"
|
||||
checks:
|
||||
- id: 3.1.1
|
||||
text: "Client certificate authentication should not be used for users (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Alternative mechanisms provided by Kubernetes such as the use of OIDC should be
|
||||
implemented in place of client certificates.
|
||||
scored: false
|
||||
|
||||
- id: 3.2
|
||||
text: "Logging"
|
||||
checks:
|
||||
- id: 3.2.1
|
||||
text: "Ensure that a minimal audit policy is created (Automated)"
|
||||
audit: "/bin/ps -ef | grep kube-apiserver | grep -v grep | grep -o audit-policy-file"
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--audit-policy-file"
|
||||
compare:
|
||||
op: eq
|
||||
value: "--audit-policy-file"
|
||||
set: true
|
||||
remediation: |
|
||||
Create an audit policy file for your cluster.
|
||||
scored: true
|
||||
|
||||
- id: 3.2.2
|
||||
text: "Ensure that the audit policy covers key security concerns (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Review the audit policy provided for the cluster and ensure that it covers
|
||||
at least the following areas,
|
||||
- Access to Secrets managed by the cluster. Care should be taken to only
|
||||
log Metadata for requests to Secrets, ConfigMaps, and TokenReviews, in
|
||||
order to avoid risk of logging sensitive data.
|
||||
- Modification of Pod and Deployment objects.
|
||||
- Use of `pods/exec`, `pods/portforward`, `pods/proxy` and `services/proxy`.
|
||||
For most requests, minimally logging at the Metadata level is recommended
|
||||
(the most basic level of logging).
|
||||
scored: false
|
||||
150
cfg/rke2-cis-1.23/etcd.yaml
Normal file
150
cfg/rke2-cis-1.23/etcd.yaml
Normal file
@@ -0,0 +1,150 @@
|
||||
---
|
||||
controls:
|
||||
version: "rke2-cis-1.23"
|
||||
id: 2
|
||||
text: "Etcd Node Configuration"
|
||||
type: "etcd"
|
||||
groups:
|
||||
- id: 2
|
||||
text: "Etcd Node Configuration"
|
||||
checks:
|
||||
- id: 2.1
|
||||
text: "Ensure that the --cert-file and --key-file arguments are set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "--cert-file"
|
||||
env: "ETCD_CERT_FILE"
|
||||
- flag: "--key-file"
|
||||
env: "ETCD_KEY_FILE"
|
||||
remediation: |
|
||||
Follow the etcd service documentation and configure TLS encryption.
|
||||
Then, edit the etcd pod specification file /etc/kubernetes/manifests/etcd.yaml
|
||||
on the master node and set the below parameters.
|
||||
--cert-file=</path/to/ca-file>
|
||||
--key-file=</path/to/key-file>
|
||||
scored: true
|
||||
type: "skip"
|
||||
|
||||
- id: 2.2
|
||||
text: "Ensure that the --client-cert-auth argument is set to true (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--client-cert-auth"
|
||||
env: "ETCD_CLIENT_CERT_AUTH"
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
type: "skip"
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and set the below parameter.
|
||||
--client-cert-auth="true"
|
||||
scored: true
|
||||
|
||||
- id: 2.3
|
||||
text: "Ensure that the --auto-tls argument is not set to true (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--auto-tls"
|
||||
env: "ETCD_AUTO_TLS"
|
||||
set: false
|
||||
- flag: "--auto-tls"
|
||||
env: "ETCD_AUTO_TLS"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and either remove the --auto-tls parameter or set it to false.
|
||||
--auto-tls=false
|
||||
scored: true
|
||||
|
||||
- id: 2.4
|
||||
text: "Ensure that the --peer-cert-file and --peer-key-file arguments are
|
||||
set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "--peer-cert-file"
|
||||
env: "ETCD_PEER_CERT_FILE"
|
||||
set: true
|
||||
- flag: "--peer-key-file"
|
||||
env: "ETCD_PEER_KEY_FILE"
|
||||
set: true
|
||||
remediation: |
|
||||
Follow the etcd service documentation and configure peer TLS encryption as appropriate
|
||||
for your etcd cluster.
|
||||
Then, edit the etcd pod specification file $etcdconf on the
|
||||
master node and set the below parameters.
|
||||
--peer-client-file=</path/to/peer-cert-file>
|
||||
--peer-key-file=</path/to/peer-key-file>
|
||||
scored: true
|
||||
type: "skip"
|
||||
|
||||
- id: 2.5
|
||||
text: "Ensure that the --peer-client-cert-auth argument is set to true (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--peer-client-cert-auth"
|
||||
env: "ETCD_PEER_CLIENT_CERT_AUTH"
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
set: true
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and set the below parameter.
|
||||
--peer-client-cert-auth=true
|
||||
scored: true
|
||||
type: "skip"
|
||||
|
||||
- id: 2.6
|
||||
text: "Ensure that the --peer-auto-tls argument is not set to true (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--peer-auto-tls"
|
||||
env: "ETCD_PEER_AUTO_TLS"
|
||||
set: false
|
||||
- flag: "--peer-auto-tls"
|
||||
env: "ETCD_PEER_AUTO_TLS"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
set: true
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and either remove the --peer-auto-tls parameter or set it to false.
|
||||
--peer-auto-tls=false
|
||||
scored: true
|
||||
|
||||
- id: 2.7
|
||||
text: "Ensure that a unique Certificate Authority is used for etcd (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
audit_config: "cat /var/lib/rancher/rke2/server/db/etcd/config"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--trusted-ca-file"
|
||||
env: "ETCD_TRUSTED_CA_FILE"
|
||||
- path: "{.peer-transport-security.trusted-ca-file}"
|
||||
compare:
|
||||
op: eq
|
||||
value: "/var/lib/rancher/rke2/server/tls/etcd/peer-ca.crt"
|
||||
set: true
|
||||
remediation: |
|
||||
[Manual test]
|
||||
Follow the etcd documentation and create a dedicated certificate authority setup for the
|
||||
etcd service.
|
||||
Then, edit the etcd pod specification file $etcdconf on the
|
||||
master node and set the below parameter.
|
||||
--trusted-ca-file=</path/to/ca-file>
|
||||
scored: false
|
||||
1038
cfg/rke2-cis-1.23/master.yaml
Normal file
1038
cfg/rke2-cis-1.23/master.yaml
Normal file
File diff suppressed because it is too large
Load Diff
466
cfg/rke2-cis-1.23/node.yaml
Normal file
466
cfg/rke2-cis-1.23/node.yaml
Normal file
@@ -0,0 +1,466 @@
|
||||
---
|
||||
controls:
|
||||
version: "rke2-cis-1.23"
|
||||
id: 4
|
||||
text: "Worker Node Security Configuration"
|
||||
type: "node"
|
||||
groups:
|
||||
- id: 4.1
|
||||
text: "Worker Node Configuration Files"
|
||||
checks:
|
||||
- id: 4.1.1
|
||||
text: "Ensure that the kubelet service file permissions are set to 644 or more restrictive (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletsvc; then stat -c permissions=%a $kubeletsvc; fi'' '
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "644"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example, chmod 644 $kubeletsvc
|
||||
scored: true
|
||||
|
||||
- id: 4.1.2
|
||||
text: "Ensure that the kubelet service file ownership is set to root:root (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletsvc; then stat -c %U:%G $kubeletsvc; fi'' '
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
set: true
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chown root:root $kubeletsvc
|
||||
scored: true
|
||||
|
||||
- id: 4.1.3
|
||||
text: "If proxy kubeconfig file exists ensure permissions are set to 644 or more restrictive (Manual)"
|
||||
audit: '/bin/sh -c ''if test -e $proxykubeconfig; then stat -c permissions=%a $proxykubeconfig; fi'' '
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
set: true
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "644"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chmod 644 $proxykubeconfig
|
||||
scored: false
|
||||
|
||||
- id: 4.1.4
|
||||
text: "If proxy kubeconfig file exists ensure ownership is set to root:root (Manual)"
|
||||
audit: '/bin/sh -c ''if test -e $proxykubeconfig; then stat -c %U:%G $proxykubeconfig; fi'' '
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example, chown root:root $proxykubeconfig
|
||||
scored: false
|
||||
|
||||
- id: 4.1.5
|
||||
text: "Ensure that the --kubeconfig kubelet.conf file permissions are set to 644 or more restrictive (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletkubeconfig; then stat -c permissions=%a $kubeletkubeconfig; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "644"
|
||||
compare:
|
||||
op: eq
|
||||
value: "644"
|
||||
set: true
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chmod 644 $kubeletkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 4.1.6
|
||||
text: "Ensure that the --kubeconfig kubelet.conf file ownership is set to root:root (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletkubeconfig; then stat -c %U:%G $kubeletkubeconfig; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
set: true
|
||||
compare:
|
||||
op: eq
|
||||
value: root:root
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chown root:root $kubeletkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 4.1.7
|
||||
text: "Ensure that the certificate authorities file permissions are set to 644 or more restrictive (Manual)"
|
||||
audit: "check_cafile_permissions.sh"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "644"
|
||||
set: true
|
||||
remediation: |
|
||||
Run the following command to modify the file permissions of the
|
||||
--client-ca-file chmod 644 <filename>
|
||||
scored: false
|
||||
|
||||
- id: 4.1.8
|
||||
text: "Ensure that the client certificate authorities file ownership is set to root:root (Manual)"
|
||||
audit: "check_cafile_ownership.sh"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Run the following command to modify the ownership of the --client-ca-file.
|
||||
chown root:root <filename>
|
||||
scored: false
|
||||
|
||||
- id: 4.1.9
|
||||
text: "Ensure that the kubelet --config configuration file has permissions set to 644 or more restrictive (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletconf; then stat -c permissions=%a $kubeletconf; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "644"
|
||||
set: true
|
||||
remediation: |
|
||||
Run the following command (using the config file location identified in the Audit step)
|
||||
chmod 644 $kubeletconf
|
||||
scored: true
|
||||
|
||||
- id: 4.1.10
|
||||
text: "Ensure that the kubelet --config configuration file ownership is set to root:root (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletconf; then stat -c %U:%G $kubeletconf; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
set: true
|
||||
remediation: |
|
||||
Run the following command (using the config file location identified in the Audit step)
|
||||
chown root:root $kubeletconf
|
||||
scored: true
|
||||
|
||||
- id: 4.2
|
||||
text: "Kubelet"
|
||||
checks:
|
||||
- id: 4.2.1
|
||||
text: "Ensure that the --anonymous-auth argument is set to false (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--anonymous-auth"
|
||||
path: '{.authentication.anonymous.enabled}'
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `authentication: anonymous: enabled` to
|
||||
`false`.
|
||||
If using executable arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
`--anonymous-auth=false`
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.2
|
||||
text: "Ensure that the --authorization-mode argument is not set to AlwaysAllow (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --authorization-mode
|
||||
path: '{.authorization.mode}'
|
||||
compare:
|
||||
op: nothave
|
||||
value: AlwaysAllow
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `authorization.mode` to Webhook. If
|
||||
using executable arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_AUTHZ_ARGS variable.
|
||||
--authorization-mode=Webhook
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.3
|
||||
text: "Ensure that the --client-ca-file argument is set as appropriate (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --client-ca-file
|
||||
path: '{.authentication.x509.clientCAFile}'
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `authentication.x509.clientCAFile` to
|
||||
the location of the client CA file.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_AUTHZ_ARGS variable.
|
||||
--client-ca-file=<path/to/client-ca-file>
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.4
|
||||
text: "Ensure that the --read-only-port argument is set to 0 (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--read-only-port"
|
||||
path: '{.readOnlyPort}'
|
||||
compare:
|
||||
op: eq
|
||||
value: 0
|
||||
- flag: "--read-only-port"
|
||||
path: '{.readOnlyPort}'
|
||||
set: false
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `readOnlyPort` to 0.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
--read-only-port=0
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.5
|
||||
text: "Ensure that the --streaming-connection-idle-timeout argument is not set to 0 (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --streaming-connection-idle-timeout
|
||||
path: '{.streamingConnectionIdleTimeout}'
|
||||
compare:
|
||||
op: noteq
|
||||
value: 0
|
||||
- flag: --streaming-connection-idle-timeout
|
||||
path: '{.streamingConnectionIdleTimeout}'
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `streamingConnectionIdleTimeout` to a
|
||||
value other than 0.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
--streaming-connection-idle-timeout=5m
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.6
|
||||
text: "Ensure that the --protect-kernel-defaults argument is set to true (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: --protect-kernel-defaults
|
||||
path: '{.protectKernelDefaults}'
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
set: true
|
||||
- flag: --protect-kernel-defaults
|
||||
path: '{.protectKernelDefaults}'
|
||||
set: false
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `protectKernelDefaults` to `true`.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
--protect-kernel-defaults=true
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.7
|
||||
text: "Ensure that the --make-iptables-util-chains argument is set to true (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --make-iptables-util-chains
|
||||
path: '{.makeIPTablesUtilChains}'
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
- flag: --make-iptables-util-chains
|
||||
path: '{.makeIPTablesUtilChains}'
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `makeIPTablesUtilChains` to `true`.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
remove the --make-iptables-util-chains argument from the
|
||||
KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.8
|
||||
text: "Ensure that the --hostname-override argument is not set (Manual)"
|
||||
# This is one of those properties that can only be set as a command line argument.
|
||||
# To check if the property is set as expected, we need to parse the kubelet command
|
||||
# instead reading the Kubelet Configuration file.
|
||||
audit: "/bin/ps -fC $kubeletbin "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --hostname-override
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the kubelet service file $kubeletsvc
|
||||
on each worker node and remove the --hostname-override argument from the
|
||||
KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
type: skip
|
||||
|
||||
- id: 4.2.9
|
||||
text: "Ensure that the --event-qps argument is set to 0 or a level which ensures appropriate event capture (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --event-qps
|
||||
path: '{.eventRecordQPS}'
|
||||
compare:
|
||||
op: eq
|
||||
value: 0
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `eventRecordQPS` to an appropriate level.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.10
|
||||
text: "Ensure that the --tls-cert-file and --tls-private-key-file arguments are set as appropriate (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --tls-cert-file
|
||||
path: '{.tlsCertFile}'
|
||||
- flag: --tls-private-key-file
|
||||
path: '{.tlsPrivateKeyFile}'
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `tlsCertFile` to the location
|
||||
of the certificate file to use to identify this Kubelet, and `tlsPrivateKeyFile`
|
||||
to the location of the corresponding private key file.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameters in KUBELET_CERTIFICATE_ARGS variable.
|
||||
--tls-cert-file=<path/to/tls-certificate-file>
|
||||
--tls-private-key-file=<path/to/tls-key-file>
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.11
|
||||
text: "Ensure that the --rotate-certificates argument is not set to false (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --rotate-certificates
|
||||
path: '{.rotateCertificates}'
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
- flag: --rotate-certificates
|
||||
path: '{.rotateCertificates}'
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to add the line `rotateCertificates` to `true` or
|
||||
remove it altogether to use the default value.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
remove --rotate-certificates=false argument from the KUBELET_CERTIFICATE_ARGS
|
||||
variable.
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.12
|
||||
text: "Verify that the RotateKubeletServerCertificate argument is set to true (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: RotateKubeletServerCertificate
|
||||
path: '{.featureGates.RotateKubeletServerCertificate}'
|
||||
compare:
|
||||
op: nothave
|
||||
value: false
|
||||
- flag: RotateKubeletServerCertificate
|
||||
path: '{.featureGates.RotateKubeletServerCertificate}'
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the kubelet service file $kubeletsvc
|
||||
on each worker node and set the below parameter in KUBELET_CERTIFICATE_ARGS variable.
|
||||
--feature-gates=RotateKubeletServerCertificate=true
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.13
|
||||
text: "Ensure that the Kubelet only makes use of Strong Cryptographic Ciphers (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --tls-cipher-suites
|
||||
path: '{range .tlsCipherSuites[:]}{}{'',''}{end}'
|
||||
compare:
|
||||
op: valid_elements
|
||||
value: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `TLSCipherSuites` to
|
||||
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
|
||||
or to a subset of these values.
|
||||
If using executable arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the --tls-cipher-suites parameter as follows, or to a subset of these values.
|
||||
--tls-cipher-suites=TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
269
cfg/rke2-cis-1.23/policies.yaml
Normal file
269
cfg/rke2-cis-1.23/policies.yaml
Normal file
@@ -0,0 +1,269 @@
|
||||
---
|
||||
controls:
|
||||
version: "rke2-cis-1.23"
|
||||
id: 5
|
||||
text: "Kubernetes Policies"
|
||||
type: "policies"
|
||||
groups:
|
||||
- id: 5.1
|
||||
text: "RBAC and Service Accounts"
|
||||
checks:
|
||||
- id: 5.1.1
|
||||
text: "Ensure that the cluster-admin role is only used where required (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Identify all clusterrolebindings to the cluster-admin role. Check if they are used and
|
||||
if they need this role or if they could use a role with fewer privileges.
|
||||
Where possible, first bind users to a lower privileged role and then remove the
|
||||
clusterrolebinding to the cluster-admin role :
|
||||
kubectl delete clusterrolebinding [name]
|
||||
scored: false
|
||||
|
||||
- id: 5.1.2
|
||||
text: "Minimize access to secrets (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove get, list and watch access to Secret objects in the cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.3
|
||||
text: "Minimize wildcard use in Roles and ClusterRoles (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible replace any use of wildcards in clusterroles and roles with specific
|
||||
objects or actions.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.4
|
||||
text: "Minimize access to create pods (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove create access to pod objects in the cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.5
|
||||
text: "Ensure that default service accounts are not actively used. (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Create explicit service accounts wherever a Kubernetes workload requires specific access
|
||||
to the Kubernetes API server.
|
||||
Modify the configuration of each default service account to include this value
|
||||
automountServiceAccountToken: false
|
||||
scored: false
|
||||
|
||||
- id: 5.1.6
|
||||
text: "Ensure that Service Account Tokens are only mounted where necessary (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Modify the definition of pods and service accounts which do not need to mount service
|
||||
account tokens to disable it.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.7
|
||||
text: "Avoid use of system:masters group (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Remove the system:masters group from all users in the cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.8
|
||||
text: "Limit use of the Bind, Impersonate and Escalate permissions in the Kubernetes cluster (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove the impersonate, bind and escalate rights from subjects.
|
||||
scored: false
|
||||
|
||||
- id: 5.2
|
||||
text: "Pod Security Standards"
|
||||
checks:
|
||||
- id: 5.2.1
|
||||
text: "Ensure that the cluster has at least one active policy control mechanism in place (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Ensure that either Pod Security Admission or an external policy control system is in place
|
||||
for every namespace which contains user workloads.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.2
|
||||
text: "Minimize the admission of privileged containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of privileged containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.3
|
||||
text: "Minimize the admission of containers wishing to share the host process ID namespace (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of `hostPID` containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.4
|
||||
text: "Minimize the admission of containers wishing to share the host IPC namespace (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of `hostIPC` containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.5
|
||||
text: "Minimize the admission of containers wishing to share the host network namespace (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of `hostNetwork` containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.6
|
||||
text: "Minimize the admission of containers with allowPrivilegeEscalation (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers with `.spec.allowPrivilegeEscalation` set to `true`.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.7
|
||||
text: "Minimize the admission of root containers (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Create a policy for each namespace in the cluster, ensuring that either `MustRunAsNonRoot`
|
||||
or `MustRunAs` with the range of UIDs not including 0, is set.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.8
|
||||
text: "Minimize the admission of containers with the NET_RAW capability (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers with the `NET_RAW` capability.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.9
|
||||
text: "Minimize the admission of containers with added capabilities (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Ensure that `allowedCapabilities` is not present in policies for the cluster unless
|
||||
it is set to an empty array.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.10
|
||||
text: "Minimize the admission of containers with capabilities assigned (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Review the use of capabilites in applications running on your cluster. Where a namespace
|
||||
contains applicaions which do not require any Linux capabities to operate consider adding
|
||||
a PSP which forbids the admission of containers which do not drop all capabilities.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.11
|
||||
text: "Minimize the admission of Windows HostProcess containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers that have `.securityContext.windowsOptions.hostProcess` set to `true`.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.12
|
||||
text: "Minimize the admission of HostPath volumes (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers with `hostPath` volumes.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.13
|
||||
text: "Minimize the admission of containers which use HostPorts (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers which use `hostPort` sections.
|
||||
scored: false
|
||||
|
||||
- id: 5.3
|
||||
text: "Network Policies and CNI"
|
||||
checks:
|
||||
- id: 5.3.1
|
||||
text: "Ensure that the CNI in use supports NetworkPolicies (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
If the CNI plugin in use does not support network policies, consideration should be given to
|
||||
making use of a different plugin, or finding an alternate mechanism for restricting traffic
|
||||
in the Kubernetes cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.3.2
|
||||
text: "Ensure that all Namespaces have NetworkPolicies defined (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the documentation and create NetworkPolicy objects as you need them.
|
||||
scored: false
|
||||
|
||||
- id: 5.4
|
||||
text: "Secrets Management"
|
||||
checks:
|
||||
- id: 5.4.1
|
||||
text: "Prefer using Secrets as files over Secrets as environment variables (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
If possible, rewrite application code to read Secrets from mounted secret files, rather than
|
||||
from environment variables.
|
||||
scored: false
|
||||
|
||||
- id: 5.4.2
|
||||
text: "Consider external secret storage (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Refer to the Secrets management options offered by your cloud provider or a third-party
|
||||
secrets management solution.
|
||||
scored: false
|
||||
|
||||
- id: 5.5
|
||||
text: "Extensible Admission Control"
|
||||
checks:
|
||||
- id: 5.5.1
|
||||
text: "Configure Image Provenance using ImagePolicyWebhook admission controller (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and setup image provenance.
|
||||
scored: false
|
||||
|
||||
- id: 5.7
|
||||
text: "General Policies"
|
||||
checks:
|
||||
- id: 5.7.1
|
||||
text: "Create administrative boundaries between resources using namespaces (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the documentation and create namespaces for objects in your deployment as you need
|
||||
them.
|
||||
scored: false
|
||||
|
||||
- id: 5.7.2
|
||||
text: "Ensure that the seccomp profile is set to docker/default in your Pod definitions (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Use `securityContext` to enable the docker/default seccomp profile in your pod definitions.
|
||||
An example is as below:
|
||||
securityContext:
|
||||
seccompProfile:
|
||||
type: RuntimeDefault
|
||||
scored: false
|
||||
|
||||
- id: 5.7.3
|
||||
text: "Apply SecurityContext to your Pods and Containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and apply SecurityContexts to your Pods. For a
|
||||
suggested list of SecurityContexts, you may refer to the CIS Security Benchmark for Docker
|
||||
Containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.7.4
|
||||
text: "The default namespace should not be used (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Ensure that namespaces are created to allow for appropriate segregation of Kubernetes
|
||||
resources and that all new resources are created in a specific namespace.
|
||||
scored: false
|
||||
2
cfg/rke2-cis-1.24/config.yaml
Normal file
2
cfg/rke2-cis-1.24/config.yaml
Normal file
@@ -0,0 +1,2 @@
|
||||
---
|
||||
## Version-specific settings that override the values in cfg/config.yaml
|
||||
50
cfg/rke2-cis-1.24/controlplane.yaml
Normal file
50
cfg/rke2-cis-1.24/controlplane.yaml
Normal file
@@ -0,0 +1,50 @@
|
||||
---
|
||||
controls:
|
||||
version: "rke2-cis-1.24"
|
||||
id: 3
|
||||
text: "Control Plane Configuration"
|
||||
type: "controlplane"
|
||||
groups:
|
||||
- id: 3.1
|
||||
text: "Authentication and Authorization"
|
||||
checks:
|
||||
- id: 3.1.1
|
||||
text: "Client certificate authentication should not be used for users (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Alternative mechanisms provided by Kubernetes such as the use of OIDC should be
|
||||
implemented in place of client certificates.
|
||||
scored: false
|
||||
|
||||
- id: 3.2
|
||||
text: "Logging"
|
||||
checks:
|
||||
- id: 3.2.1
|
||||
text: "Ensure that a minimal audit policy is created (Automated)"
|
||||
audit: "/bin/ps -ef | grep kube-apiserver | grep -v grep | grep -o audit-policy-file"
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--audit-policy-file"
|
||||
compare:
|
||||
op: eq
|
||||
value: "--audit-policy-file"
|
||||
set: true
|
||||
remediation: |
|
||||
Create an audit policy file for your cluster.
|
||||
scored: true
|
||||
|
||||
- id: 3.2.2
|
||||
text: "Ensure that the audit policy covers key security concerns (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Review the audit policy provided for the cluster and ensure that it covers
|
||||
at least the following areas,
|
||||
- Access to Secrets managed by the cluster. Care should be taken to only
|
||||
log Metadata for requests to Secrets, ConfigMaps, and TokenReviews, in
|
||||
order to avoid risk of logging sensitive data.
|
||||
- Modification of Pod and Deployment objects.
|
||||
- Use of `pods/exec`, `pods/portforward`, `pods/proxy` and `services/proxy`.
|
||||
For most requests, minimally logging at the Metadata level is recommended
|
||||
(the most basic level of logging).
|
||||
scored: false
|
||||
150
cfg/rke2-cis-1.24/etcd.yaml
Normal file
150
cfg/rke2-cis-1.24/etcd.yaml
Normal file
@@ -0,0 +1,150 @@
|
||||
---
|
||||
controls:
|
||||
version: "rke2-cis-1.24"
|
||||
id: 2
|
||||
text: "Etcd Node Configuration"
|
||||
type: "etcd"
|
||||
groups:
|
||||
- id: 2
|
||||
text: "Etcd Node Configuration"
|
||||
checks:
|
||||
- id: 2.1
|
||||
text: "Ensure that the --cert-file and --key-file arguments are set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "--cert-file"
|
||||
env: "ETCD_CERT_FILE"
|
||||
- flag: "--key-file"
|
||||
env: "ETCD_KEY_FILE"
|
||||
remediation: |
|
||||
Follow the etcd service documentation and configure TLS encryption.
|
||||
Then, edit the etcd pod specification file /etc/kubernetes/manifests/etcd.yaml
|
||||
on the master node and set the below parameters.
|
||||
--cert-file=</path/to/ca-file>
|
||||
--key-file=</path/to/key-file>
|
||||
scored: true
|
||||
type: "skip"
|
||||
|
||||
- id: 2.2
|
||||
text: "Ensure that the --client-cert-auth argument is set to true (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--client-cert-auth"
|
||||
env: "ETCD_CLIENT_CERT_AUTH"
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
type: "skip"
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and set the below parameter.
|
||||
--client-cert-auth="true"
|
||||
scored: true
|
||||
|
||||
- id: 2.3
|
||||
text: "Ensure that the --auto-tls argument is not set to true (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--auto-tls"
|
||||
env: "ETCD_AUTO_TLS"
|
||||
set: false
|
||||
- flag: "--auto-tls"
|
||||
env: "ETCD_AUTO_TLS"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and either remove the --auto-tls parameter or set it to false.
|
||||
--auto-tls=false
|
||||
scored: true
|
||||
|
||||
- id: 2.4
|
||||
text: "Ensure that the --peer-cert-file and --peer-key-file arguments are
|
||||
set as appropriate (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "--peer-cert-file"
|
||||
env: "ETCD_PEER_CERT_FILE"
|
||||
set: true
|
||||
- flag: "--peer-key-file"
|
||||
env: "ETCD_PEER_KEY_FILE"
|
||||
set: true
|
||||
remediation: |
|
||||
Follow the etcd service documentation and configure peer TLS encryption as appropriate
|
||||
for your etcd cluster.
|
||||
Then, edit the etcd pod specification file $etcdconf on the
|
||||
master node and set the below parameters.
|
||||
--peer-client-file=</path/to/peer-cert-file>
|
||||
--peer-key-file=</path/to/peer-key-file>
|
||||
scored: true
|
||||
type: "skip"
|
||||
|
||||
- id: 2.5
|
||||
text: "Ensure that the --peer-client-cert-auth argument is set to true (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--peer-client-cert-auth"
|
||||
env: "ETCD_PEER_CLIENT_CERT_AUTH"
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
set: true
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and set the below parameter.
|
||||
--peer-client-cert-auth=true
|
||||
scored: true
|
||||
type: "skip"
|
||||
|
||||
- id: 2.6
|
||||
text: "Ensure that the --peer-auto-tls argument is not set to true (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--peer-auto-tls"
|
||||
env: "ETCD_PEER_AUTO_TLS"
|
||||
set: false
|
||||
- flag: "--peer-auto-tls"
|
||||
env: "ETCD_PEER_AUTO_TLS"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
set: true
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and either remove the --peer-auto-tls parameter or set it to false.
|
||||
--peer-auto-tls=false
|
||||
scored: true
|
||||
|
||||
- id: 2.7
|
||||
text: "Ensure that a unique Certificate Authority is used for etcd (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
audit_config: "cat /var/lib/rancher/rke2/server/db/etcd/config"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--trusted-ca-file"
|
||||
env: "ETCD_TRUSTED_CA_FILE"
|
||||
- path: "{.peer-transport-security.trusted-ca-file}"
|
||||
compare:
|
||||
op: eq
|
||||
value: "/var/lib/rancher/rke2/server/tls/etcd/peer-ca.crt"
|
||||
set: true
|
||||
remediation: |
|
||||
[Manual test]
|
||||
Follow the etcd documentation and create a dedicated certificate authority setup for the
|
||||
etcd service.
|
||||
Then, edit the etcd pod specification file $etcdconf on the
|
||||
master node and set the below parameter.
|
||||
--trusted-ca-file=</path/to/ca-file>
|
||||
scored: false
|
||||
1038
cfg/rke2-cis-1.24/master.yaml
Normal file
1038
cfg/rke2-cis-1.24/master.yaml
Normal file
File diff suppressed because it is too large
Load Diff
466
cfg/rke2-cis-1.24/node.yaml
Normal file
466
cfg/rke2-cis-1.24/node.yaml
Normal file
@@ -0,0 +1,466 @@
|
||||
---
|
||||
controls:
|
||||
version: "rke2-cis-1.24"
|
||||
id: 4
|
||||
text: "Worker Node Security Configuration"
|
||||
type: "node"
|
||||
groups:
|
||||
- id: 4.1
|
||||
text: "Worker Node Configuration Files"
|
||||
checks:
|
||||
- id: 4.1.1
|
||||
text: "Ensure that the kubelet service file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletsvc; then stat -c permissions=%a $kubeletsvc; fi'' '
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example, chmod 600 $kubeletsvc
|
||||
scored: true
|
||||
|
||||
- id: 4.1.2
|
||||
text: "Ensure that the kubelet service file ownership is set to root:root (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletsvc; then stat -c %U:%G $kubeletsvc; fi'' '
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
set: true
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chown root:root $kubeletsvc
|
||||
scored: true
|
||||
|
||||
- id: 4.1.3
|
||||
text: "If proxy kubeconfig file exists ensure permissions are set to 600 or more restrictive (Manual)"
|
||||
audit: '/bin/sh -c ''if test -e $proxykubeconfig; then stat -c permissions=%a $proxykubeconfig; fi'' '
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
set: true
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chmod 600 $proxykubeconfig
|
||||
scored: false
|
||||
|
||||
- id: 4.1.4
|
||||
text: "If proxy kubeconfig file exists ensure ownership is set to root:root (Manual)"
|
||||
audit: '/bin/sh -c ''if test -e $proxykubeconfig; then stat -c %U:%G $proxykubeconfig; fi'' '
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example, chown root:root $proxykubeconfig
|
||||
scored: false
|
||||
|
||||
- id: 4.1.5
|
||||
text: "Ensure that the --kubeconfig kubelet.conf file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletkubeconfig; then stat -c permissions=%a $kubeletkubeconfig; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "600"
|
||||
compare:
|
||||
op: eq
|
||||
value: "600"
|
||||
set: true
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chmod 600 $kubeletkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 4.1.6
|
||||
text: "Ensure that the --kubeconfig kubelet.conf file ownership is set to root:root (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletkubeconfig; then stat -c %U:%G $kubeletkubeconfig; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
set: true
|
||||
compare:
|
||||
op: eq
|
||||
value: root:root
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chown root:root $kubeletkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 4.1.7
|
||||
text: "Ensure that the certificate authorities file permissions are set to 600 or more restrictive (Manual)"
|
||||
audit: "check_cafile_permissions.sh"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
set: true
|
||||
remediation: |
|
||||
Run the following command to modify the file permissions of the
|
||||
--client-ca-file chmod 600 <filename>
|
||||
scored: false
|
||||
|
||||
- id: 4.1.8
|
||||
text: "Ensure that the client certificate authorities file ownership is set to root:root (Manual)"
|
||||
audit: "check_cafile_ownership.sh"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Run the following command to modify the ownership of the --client-ca-file.
|
||||
chown root:root <filename>
|
||||
scored: false
|
||||
|
||||
- id: 4.1.9
|
||||
text: "If the kubelet config.yaml configuration file is being used validate permissions set to 600 or more restrictive (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletconf; then stat -c permissions=%a $kubeletconf; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
set: true
|
||||
remediation: |
|
||||
Run the following command (using the config file location identified in the Audit step)
|
||||
chmod 600 $kubeletconf
|
||||
scored: true
|
||||
|
||||
- id: 4.1.10
|
||||
text: "If the kubelet config.yaml configuration file is being used validate file ownership is set to root:root (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletconf; then stat -c %U:%G $kubeletconf; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
set: true
|
||||
remediation: |
|
||||
Run the following command (using the config file location identified in the Audit step)
|
||||
chown root:root $kubeletconf
|
||||
scored: true
|
||||
|
||||
- id: 4.2
|
||||
text: "Kubelet"
|
||||
checks:
|
||||
- id: 4.2.1
|
||||
text: "Ensure that the --anonymous-auth argument is set to false (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--anonymous-auth"
|
||||
path: '{.authentication.anonymous.enabled}'
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `authentication: anonymous: enabled` to
|
||||
`false`.
|
||||
If using executable arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
`--anonymous-auth=false`
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.2
|
||||
text: "Ensure that the --authorization-mode argument is not set to AlwaysAllow (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --authorization-mode
|
||||
path: '{.authorization.mode}'
|
||||
compare:
|
||||
op: nothave
|
||||
value: AlwaysAllow
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `authorization.mode` to Webhook. If
|
||||
using executable arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_AUTHZ_ARGS variable.
|
||||
--authorization-mode=Webhook
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.3
|
||||
text: "Ensure that the --client-ca-file argument is set as appropriate (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --client-ca-file
|
||||
path: '{.authentication.x509.clientCAFile}'
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `authentication.x509.clientCAFile` to
|
||||
the location of the client CA file.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_AUTHZ_ARGS variable.
|
||||
--client-ca-file=<path/to/client-ca-file>
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.4
|
||||
text: "Verify that the --read-only-port argument is set to 0 (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--read-only-port"
|
||||
path: '{.readOnlyPort}'
|
||||
compare:
|
||||
op: eq
|
||||
value: 0
|
||||
- flag: "--read-only-port"
|
||||
path: '{.readOnlyPort}'
|
||||
set: false
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `readOnlyPort` to 0.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
--read-only-port=0
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.5
|
||||
text: "Ensure that the --streaming-connection-idle-timeout argument is not set to 0 (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --streaming-connection-idle-timeout
|
||||
path: '{.streamingConnectionIdleTimeout}'
|
||||
compare:
|
||||
op: noteq
|
||||
value: 0
|
||||
- flag: --streaming-connection-idle-timeout
|
||||
path: '{.streamingConnectionIdleTimeout}'
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `streamingConnectionIdleTimeout` to a
|
||||
value other than 0.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
--streaming-connection-idle-timeout=5m
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.6
|
||||
text: "Ensure that the --protect-kernel-defaults argument is set to true (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: --protect-kernel-defaults
|
||||
path: '{.protectKernelDefaults}'
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
set: true
|
||||
- flag: --protect-kernel-defaults
|
||||
path: '{.protectKernelDefaults}'
|
||||
set: false
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `protectKernelDefaults` to `true`.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
--protect-kernel-defaults=true
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.7
|
||||
text: "Ensure that the --make-iptables-util-chains argument is set to true (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --make-iptables-util-chains
|
||||
path: '{.makeIPTablesUtilChains}'
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
- flag: --make-iptables-util-chains
|
||||
path: '{.makeIPTablesUtilChains}'
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `makeIPTablesUtilChains` to `true`.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
remove the --make-iptables-util-chains argument from the
|
||||
KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.8
|
||||
text: "Ensure that the --hostname-override argument is not set (Manual)"
|
||||
# This is one of those properties that can only be set as a command line argument.
|
||||
# To check if the property is set as expected, we need to parse the kubelet command
|
||||
# instead reading the Kubelet Configuration file.
|
||||
audit: "/bin/ps -fC $kubeletbin "
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --hostname-override
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the kubelet service file $kubeletsvc
|
||||
on each worker node and remove the --hostname-override argument from the
|
||||
KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
type: skip
|
||||
|
||||
- id: 4.2.9
|
||||
text: "Ensure that the eventRecordQPS argument is set to a level which ensures appropriate event capture (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --event-qps
|
||||
path: '{.eventRecordQPS}'
|
||||
compare:
|
||||
op: eq
|
||||
value: 0
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `eventRecordQPS` to an appropriate level.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.10
|
||||
text: "Ensure that the --tls-cert-file and --tls-private-key-file arguments are set as appropriate (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --tls-cert-file
|
||||
path: '{.tlsCertFile}'
|
||||
- flag: --tls-private-key-file
|
||||
path: '{.tlsPrivateKeyFile}'
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `tlsCertFile` to the location
|
||||
of the certificate file to use to identify this Kubelet, and `tlsPrivateKeyFile`
|
||||
to the location of the corresponding private key file.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameters in KUBELET_CERTIFICATE_ARGS variable.
|
||||
--tls-cert-file=<path/to/tls-certificate-file>
|
||||
--tls-private-key-file=<path/to/tls-key-file>
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.11
|
||||
text: "Ensure that the --rotate-certificates argument is not set to false (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --rotate-certificates
|
||||
path: '{.rotateCertificates}'
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
- flag: --rotate-certificates
|
||||
path: '{.rotateCertificates}'
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to add the line `rotateCertificates` to `true` or
|
||||
remove it altogether to use the default value.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
remove --rotate-certificates=false argument from the KUBELET_CERTIFICATE_ARGS
|
||||
variable.
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.12
|
||||
text: "Verify that the RotateKubeletServerCertificate argument is set to true (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: RotateKubeletServerCertificate
|
||||
path: '{.featureGates.RotateKubeletServerCertificate}'
|
||||
compare:
|
||||
op: nothave
|
||||
value: false
|
||||
- flag: RotateKubeletServerCertificate
|
||||
path: '{.featureGates.RotateKubeletServerCertificate}'
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the kubelet service file $kubeletsvc
|
||||
on each worker node and set the below parameter in KUBELET_CERTIFICATE_ARGS variable.
|
||||
--feature-gates=RotateKubeletServerCertificate=true
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.13
|
||||
text: "Ensure that the Kubelet only makes use of Strong Cryptographic Ciphers (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --tls-cipher-suites
|
||||
path: '{range .tlsCipherSuites[:]}{}{'',''}{end}'
|
||||
compare:
|
||||
op: valid_elements
|
||||
value: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `TLSCipherSuites` to
|
||||
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
|
||||
or to a subset of these values.
|
||||
If using executable arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the --tls-cipher-suites parameter as follows, or to a subset of these values.
|
||||
--tls-cipher-suites=TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
269
cfg/rke2-cis-1.24/policies.yaml
Normal file
269
cfg/rke2-cis-1.24/policies.yaml
Normal file
@@ -0,0 +1,269 @@
|
||||
---
|
||||
controls:
|
||||
version: "rke2-cis-1.24"
|
||||
id: 5
|
||||
text: "Kubernetes Policies"
|
||||
type: "policies"
|
||||
groups:
|
||||
- id: 5.1
|
||||
text: "RBAC and Service Accounts"
|
||||
checks:
|
||||
- id: 5.1.1
|
||||
text: "Ensure that the cluster-admin role is only used where required (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Identify all clusterrolebindings to the cluster-admin role. Check if they are used and
|
||||
if they need this role or if they could use a role with fewer privileges.
|
||||
Where possible, first bind users to a lower privileged role and then remove the
|
||||
clusterrolebinding to the cluster-admin role :
|
||||
kubectl delete clusterrolebinding [name]
|
||||
scored: false
|
||||
|
||||
- id: 5.1.2
|
||||
text: "Minimize access to secrets (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove get, list and watch access to Secret objects in the cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.3
|
||||
text: "Minimize wildcard use in Roles and ClusterRoles (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible replace any use of wildcards in clusterroles and roles with specific
|
||||
objects or actions.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.4
|
||||
text: "Minimize access to create pods (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove create access to pod objects in the cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.5
|
||||
text: "Ensure that default service accounts are not actively used. (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Create explicit service accounts wherever a Kubernetes workload requires specific access
|
||||
to the Kubernetes API server.
|
||||
Modify the configuration of each default service account to include this value
|
||||
automountServiceAccountToken: false
|
||||
scored: false
|
||||
|
||||
- id: 5.1.6
|
||||
text: "Ensure that Service Account Tokens are only mounted where necessary (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Modify the definition of pods and service accounts which do not need to mount service
|
||||
account tokens to disable it.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.7
|
||||
text: "Avoid use of system:masters group (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Remove the system:masters group from all users in the cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.8
|
||||
text: "Limit use of the Bind, Impersonate and Escalate permissions in the Kubernetes cluster (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove the impersonate, bind and escalate rights from subjects.
|
||||
scored: false
|
||||
|
||||
- id: 5.2
|
||||
text: "Pod Security Standards"
|
||||
checks:
|
||||
- id: 5.2.1
|
||||
text: "Ensure that the cluster has at least one active policy control mechanism in place (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Ensure that either Pod Security Admission or an external policy control system is in place
|
||||
for every namespace which contains user workloads.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.2
|
||||
text: "Minimize the admission of privileged containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of privileged containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.3
|
||||
text: "Minimize the admission of containers wishing to share the host process ID namespace (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of `hostPID` containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.4
|
||||
text: "Minimize the admission of containers wishing to share the host IPC namespace (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of `hostIPC` containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.5
|
||||
text: "Minimize the admission of containers wishing to share the host network namespace (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of `hostNetwork` containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.6
|
||||
text: "Minimize the admission of containers with allowPrivilegeEscalation (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers with `.spec.allowPrivilegeEscalation` set to `true`.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.7
|
||||
text: "Minimize the admission of root containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Create a policy for each namespace in the cluster, ensuring that either `MustRunAsNonRoot`
|
||||
or `MustRunAs` with the range of UIDs not including 0, is set.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.8
|
||||
text: "Minimize the admission of containers with the NET_RAW capability (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers with the `NET_RAW` capability.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.9
|
||||
text: "Minimize the admission of containers with added capabilities (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Ensure that `allowedCapabilities` is not present in policies for the cluster unless
|
||||
it is set to an empty array.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.10
|
||||
text: "Minimize the admission of containers with capabilities assigned (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Review the use of capabilites in applications running on your cluster. Where a namespace
|
||||
contains applicaions which do not require any Linux capabities to operate consider adding
|
||||
a PSP which forbids the admission of containers which do not drop all capabilities.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.11
|
||||
text: "Minimize the admission of Windows HostProcess containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers that have `.securityContext.windowsOptions.hostProcess` set to `true`.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.12
|
||||
text: "Minimize the admission of HostPath volumes (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers with `hostPath` volumes.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.13
|
||||
text: "Minimize the admission of containers which use HostPorts (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers which use `hostPort` sections.
|
||||
scored: false
|
||||
|
||||
- id: 5.3
|
||||
text: "Network Policies and CNI"
|
||||
checks:
|
||||
- id: 5.3.1
|
||||
text: "Ensure that the CNI in use supports NetworkPolicies (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
If the CNI plugin in use does not support network policies, consideration should be given to
|
||||
making use of a different plugin, or finding an alternate mechanism for restricting traffic
|
||||
in the Kubernetes cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.3.2
|
||||
text: "Ensure that all Namespaces have NetworkPolicies defined (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the documentation and create NetworkPolicy objects as you need them.
|
||||
scored: false
|
||||
|
||||
- id: 5.4
|
||||
text: "Secrets Management"
|
||||
checks:
|
||||
- id: 5.4.1
|
||||
text: "Prefer using Secrets as files over Secrets as environment variables (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
If possible, rewrite application code to read Secrets from mounted secret files, rather than
|
||||
from environment variables.
|
||||
scored: false
|
||||
|
||||
- id: 5.4.2
|
||||
text: "Consider external secret storage (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Refer to the Secrets management options offered by your cloud provider or a third-party
|
||||
secrets management solution.
|
||||
scored: false
|
||||
|
||||
- id: 5.5
|
||||
text: "Extensible Admission Control"
|
||||
checks:
|
||||
- id: 5.5.1
|
||||
text: "Configure Image Provenance using ImagePolicyWebhook admission controller (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and setup image provenance.
|
||||
scored: false
|
||||
|
||||
- id: 5.7
|
||||
text: "General Policies"
|
||||
checks:
|
||||
- id: 5.7.1
|
||||
text: "Create administrative boundaries between resources using namespaces (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the documentation and create namespaces for objects in your deployment as you need
|
||||
them.
|
||||
scored: false
|
||||
|
||||
- id: 5.7.2
|
||||
text: "Ensure that the seccomp profile is set to docker/default in your Pod definitions (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Use `securityContext` to enable the docker/default seccomp profile in your pod definitions.
|
||||
An example is as below:
|
||||
securityContext:
|
||||
seccompProfile:
|
||||
type: RuntimeDefault
|
||||
scored: false
|
||||
|
||||
- id: 5.7.3
|
||||
text: "Apply SecurityContext to your Pods and Containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and apply SecurityContexts to your Pods. For a
|
||||
suggested list of SecurityContexts, you may refer to the CIS Security Benchmark for Docker
|
||||
Containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.7.4
|
||||
text: "The default namespace should not be used (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Ensure that namespaces are created to allow for appropriate segregation of Kubernetes
|
||||
resources and that all new resources are created in a specific namespace.
|
||||
scored: false
|
||||
2
cfg/rke2-cis-1.7/config.yaml
Normal file
2
cfg/rke2-cis-1.7/config.yaml
Normal file
@@ -0,0 +1,2 @@
|
||||
---
|
||||
## Version-specific settings that override the values in cfg/config.yaml
|
||||
62
cfg/rke2-cis-1.7/controlplane.yaml
Normal file
62
cfg/rke2-cis-1.7/controlplane.yaml
Normal file
@@ -0,0 +1,62 @@
|
||||
---
|
||||
controls:
|
||||
version: "rke2-cis-1.7"
|
||||
id: 3
|
||||
text: "Control Plane Configuration"
|
||||
type: "controlplane"
|
||||
groups:
|
||||
- id: 3.1
|
||||
text: "Authentication and Authorization"
|
||||
checks:
|
||||
- id: 3.1.1
|
||||
text: "Client certificate authentication should not be used for users (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Alternative mechanisms provided by Kubernetes such as the use of OIDC should be
|
||||
implemented in place of client certificates.
|
||||
scored: false
|
||||
- id: 3.1.2
|
||||
text: "Service account token authentication should not be used for users (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Alternative mechanisms provided by Kubernetes such as the use of OIDC should be implemented
|
||||
in place of service account tokens.
|
||||
scored: false
|
||||
- id: 3.1.3
|
||||
text: "Bootstrap token authentication should not be used for users (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Alternative mechanisms provided by Kubernetes such as the use of OIDC should be implemented
|
||||
in place of bootstrap tokens.
|
||||
scored: false
|
||||
|
||||
- id: 3.2
|
||||
text: "Logging"
|
||||
checks:
|
||||
- id: 3.2.1
|
||||
text: "Ensure that a minimal audit policy is created (Automated)"
|
||||
type: "skip"
|
||||
audit: "/bin/ps -ef | grep $apiserverbin | grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--audit-policy-file"
|
||||
set: true
|
||||
remediation: |
|
||||
Create an audit policy file for your cluster.
|
||||
Permissive.
|
||||
scored: true
|
||||
|
||||
- id: 3.2.2
|
||||
text: "Ensure that the audit policy covers key security concerns (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Review the audit policy provided for the cluster and ensure that it covers
|
||||
at least the following areas,
|
||||
- Access to Secrets managed by the cluster. Care should be taken to only
|
||||
log Metadata for requests to Secrets, ConfigMaps, and TokenReviews, in
|
||||
order to avoid risk of logging sensitive data.
|
||||
- Modification of Pod and Deployment objects.
|
||||
- Use of `pods/exec`, `pods/portforward`, `pods/proxy` and `services/proxy`.
|
||||
For most requests, minimally logging at the Metadata level is recommended
|
||||
(the most basic level of logging).
|
||||
scored: false
|
||||
154
cfg/rke2-cis-1.7/etcd.yaml
Normal file
154
cfg/rke2-cis-1.7/etcd.yaml
Normal file
@@ -0,0 +1,154 @@
|
||||
---
|
||||
controls:
|
||||
version: "rke2-cis-1.7"
|
||||
id: 2
|
||||
text: "Etcd Node Configuration"
|
||||
type: "etcd"
|
||||
groups:
|
||||
- id: 2
|
||||
text: "Etcd Node Configuration"
|
||||
checks:
|
||||
- id: 2.1
|
||||
text: "Ensure that the --cert-file and --key-file arguments are set as appropriate (Automated)"
|
||||
type: "skip"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "--cert-file"
|
||||
env: "ETCD_CERT_FILE"
|
||||
- flag: "--key-file"
|
||||
env: "ETCD_KEY_FILE"
|
||||
remediation: |
|
||||
Follow the etcd service documentation and configure TLS encryption.
|
||||
Then, edit the etcd pod specification file /etc/kubernetes/manifests/etcd.yaml
|
||||
on the master node and set the below parameters.
|
||||
--cert-file=</path/to/ca-file>
|
||||
--key-file=</path/to/key-file>
|
||||
Not Applicable.
|
||||
scored: true
|
||||
|
||||
- id: 2.2
|
||||
text: "Ensure that the --client-cert-auth argument is set to true (Automated)"
|
||||
type: "skip"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--client-cert-auth"
|
||||
env: "ETCD_CLIENT_CERT_AUTH"
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and set the below parameter.
|
||||
--client-cert-auth="true"
|
||||
Not Applicable.
|
||||
scored: true
|
||||
|
||||
- id: 2.3
|
||||
text: "Ensure that the --auto-tls argument is not set to true (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--auto-tls"
|
||||
env: "ETCD_AUTO_TLS"
|
||||
set: false
|
||||
- flag: "--auto-tls"
|
||||
env: "ETCD_AUTO_TLS"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and either remove the --auto-tls parameter or set it to false.
|
||||
--auto-tls=false
|
||||
scored: true
|
||||
|
||||
- id: 2.4
|
||||
text: "Ensure that the --peer-cert-file and --peer-key-file arguments are
|
||||
set as appropriate (Automated)"
|
||||
type: "skip"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
bin_op: and
|
||||
test_items:
|
||||
- flag: "--peer-cert-file"
|
||||
env: "ETCD_PEER_CERT_FILE"
|
||||
set: true
|
||||
- flag: "--peer-key-file"
|
||||
env: "ETCD_PEER_KEY_FILE"
|
||||
set: true
|
||||
remediation: |
|
||||
Follow the etcd service documentation and configure peer TLS encryption as appropriate
|
||||
for your etcd cluster.
|
||||
Then, edit the etcd pod specification file $etcdconf on the
|
||||
master node and set the below parameters.
|
||||
--peer-client-file=</path/to/peer-cert-file>
|
||||
--peer-key-file=</path/to/peer-key-file>
|
||||
Not Applicable.
|
||||
scored: true
|
||||
|
||||
- id: 2.5
|
||||
text: "Ensure that the --peer-client-cert-auth argument is set to true (Automated)"
|
||||
type: "skip"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--peer-client-cert-auth"
|
||||
env: "ETCD_PEER_CLIENT_CERT_AUTH"
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
set: true
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and set the below parameter.
|
||||
--peer-client-cert-auth=true
|
||||
Not Applicable.
|
||||
scored: true
|
||||
|
||||
- id: 2.6
|
||||
text: "Ensure that the --peer-auto-tls argument is not set to true (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--peer-auto-tls"
|
||||
env: "ETCD_PEER_AUTO_TLS"
|
||||
set: false
|
||||
- flag: "--peer-auto-tls"
|
||||
env: "ETCD_PEER_AUTO_TLS"
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
set: true
|
||||
remediation: |
|
||||
Edit the etcd pod specification file $etcdconf on the master
|
||||
node and either remove the --peer-auto-tls parameter or set it to false.
|
||||
--peer-auto-tls=false
|
||||
scored: true
|
||||
|
||||
- id: 2.7
|
||||
text: "Ensure that a unique Certificate Authority is used for etcd (Automated)"
|
||||
audit: "/bin/ps -ef | /bin/grep $etcdbin | /bin/grep -v grep"
|
||||
audit_config: "cat /var/lib/rancher/rke2/server/db/etcd/config"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--trusted-ca-file"
|
||||
env: "ETCD_TRUSTED_CA_FILE"
|
||||
- path: "{.peer-transport-security.trusted-ca-file}"
|
||||
compare:
|
||||
op: eq
|
||||
value: "/var/lib/rancher/rke2/server/tls/etcd/peer-ca.crt"
|
||||
set: true
|
||||
remediation: |
|
||||
[Manual test]
|
||||
Follow the etcd documentation and create a dedicated certificate authority setup for the
|
||||
etcd service.
|
||||
Then, edit the etcd pod specification file $etcdconf on the
|
||||
master node and set the below parameter.
|
||||
--trusted-ca-file=</path/to/ca-file>
|
||||
scored: true
|
||||
1027
cfg/rke2-cis-1.7/master.yaml
Normal file
1027
cfg/rke2-cis-1.7/master.yaml
Normal file
File diff suppressed because it is too large
Load Diff
458
cfg/rke2-cis-1.7/node.yaml
Normal file
458
cfg/rke2-cis-1.7/node.yaml
Normal file
@@ -0,0 +1,458 @@
|
||||
---
|
||||
controls:
|
||||
version: "rke2-cis-1.7"
|
||||
id: 4
|
||||
text: "Worker Node Security Configuration"
|
||||
type: "node"
|
||||
groups:
|
||||
- id: 4.1
|
||||
text: "Worker Node Configuration Files"
|
||||
checks:
|
||||
- id: 4.1.1
|
||||
text: "Ensure that the kubelet service file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletsvc; then stat -c permissions=%a $kubeletsvc; fi'' '
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example, chmod 600 $kubeletsvc
|
||||
Not Applicable.
|
||||
scored: true
|
||||
|
||||
- id: 4.1.2
|
||||
text: "Ensure that the kubelet service file ownership is set to root:root (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletsvc; then stat -c %U:%G $kubeletsvc; fi'' '
|
||||
type: "skip"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "root:root"
|
||||
set: true
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chown root:root $kubeletsvc
|
||||
Not applicable.
|
||||
scored: true
|
||||
|
||||
- id: 4.1.3
|
||||
text: "If proxy kubeconfig file exists ensure permissions are set to 600 or more restrictive (Manual)"
|
||||
audit: '/bin/sh -c ''if test -e $proxykubeconfig; then stat -c permissions=%a $proxykubeconfig; fi'' '
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chmod 600 $proxykubeconfig
|
||||
scored: false
|
||||
|
||||
- id: 4.1.4
|
||||
text: "If proxy kubeconfig file exists ensure ownership is set to root:root (Manual)"
|
||||
audit: '/bin/sh -c ''if test -e $proxykubeconfig; then stat -c %U:%G $proxykubeconfig; fi'' '
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example, chown root:root $proxykubeconfig
|
||||
scored: false
|
||||
|
||||
- id: 4.1.5
|
||||
text: "Ensure that the --kubeconfig kubelet.conf file permissions are set to 600 or more restrictive (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletkubeconfig; then stat -c permissions=%a $kubeletkubeconfig; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
set: true
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chmod 600 $kubeletkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 4.1.6
|
||||
text: "Ensure that the --kubeconfig kubelet.conf file ownership is set to root:root (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletkubeconfig; then stat -c %U:%G $kubeletkubeconfig; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
set: true
|
||||
compare:
|
||||
op: eq
|
||||
value: root:root
|
||||
remediation: |
|
||||
Run the below command (based on the file location on your system) on the each worker node.
|
||||
For example,
|
||||
chown root:root $kubeletkubeconfig
|
||||
scored: true
|
||||
|
||||
- id: 4.1.7
|
||||
text: "Ensure that the certificate authorities file permissions are set to 600 or more restrictive (Manual)"
|
||||
audit: "check_cafile_permissions.sh"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
set: true
|
||||
remediation: |
|
||||
Run the following command to modify the file permissions of the
|
||||
--client-ca-file chmod 600 <filename>
|
||||
scored: false
|
||||
|
||||
- id: 4.1.8
|
||||
text: "Ensure that the client certificate authorities file ownership is set to root:root (Manual)"
|
||||
audit: "check_cafile_ownership.sh"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
remediation: |
|
||||
Run the following command to modify the ownership of the --client-ca-file.
|
||||
chown root:root <filename>
|
||||
scored: false
|
||||
|
||||
- id: 4.1.9
|
||||
text: "If the kubelet config.yaml configuration file is being used validate permissions set to 600 or more restrictive (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletconf; then stat -c permissions=%a $kubeletconf; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "permissions"
|
||||
compare:
|
||||
op: bitmask
|
||||
value: "600"
|
||||
set: true
|
||||
remediation: |
|
||||
Run the following command (using the config file location identified in the Audit step)
|
||||
chmod 600 $kubeletconf
|
||||
scored: true
|
||||
|
||||
- id: 4.1.10
|
||||
text: "If the kubelet config.yaml configuration file is being used validate file ownership is set to root:root (Automated)"
|
||||
audit: '/bin/sh -c ''if test -e $kubeletconf; then stat -c %U:%G $kubeletconf; fi'' '
|
||||
tests:
|
||||
test_items:
|
||||
- flag: root:root
|
||||
set: true
|
||||
remediation: |
|
||||
Run the following command (using the config file location identified in the Audit step)
|
||||
chown root:root $kubeletconf
|
||||
scored: true
|
||||
|
||||
- id: 4.2
|
||||
text: "Kubelet"
|
||||
checks:
|
||||
- id: 4.2.1
|
||||
text: "Ensure that the --anonymous-auth argument is set to false (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: "--anonymous-auth"
|
||||
path: '{.authentication.anonymous.enabled}'
|
||||
compare:
|
||||
op: eq
|
||||
value: false
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `authentication: anonymous: enabled` to
|
||||
`false`.
|
||||
If using executable arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
`--anonymous-auth=false`
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.2
|
||||
text: "Ensure that the --authorization-mode argument is not set to AlwaysAllow (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --authorization-mode
|
||||
path: '{.authorization.mode}'
|
||||
compare:
|
||||
op: nothave
|
||||
value: AlwaysAllow
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `authorization.mode` to Webhook. If
|
||||
using executable arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_AUTHZ_ARGS variable.
|
||||
--authorization-mode=Webhook
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.3
|
||||
text: "Ensure that the --client-ca-file argument is set as appropriate (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --client-ca-file
|
||||
path: '{.authentication.x509.clientCAFile}'
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `authentication.x509.clientCAFile` to
|
||||
the location of the client CA file.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_AUTHZ_ARGS variable.
|
||||
--client-ca-file=<path/to/client-ca-file>
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.4
|
||||
text: "Verify that the --read-only-port argument is set to 0 (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: "--read-only-port"
|
||||
path: '{.readOnlyPort}'
|
||||
compare:
|
||||
op: eq
|
||||
value: 0
|
||||
- flag: "--read-only-port"
|
||||
path: '{.readOnlyPort}'
|
||||
set: false
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `readOnlyPort` to 0.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
--read-only-port=0
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.5
|
||||
text: "Ensure that the --streaming-connection-idle-timeout argument is not set to 0 (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --streaming-connection-idle-timeout
|
||||
path: '{.streamingConnectionIdleTimeout}'
|
||||
compare:
|
||||
op: noteq
|
||||
value: 0
|
||||
- flag: --streaming-connection-idle-timeout
|
||||
path: '{.streamingConnectionIdleTimeout}'
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `streamingConnectionIdleTimeout` to a
|
||||
value other than 0.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
--streaming-connection-idle-timeout=5m
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.6
|
||||
text: "Ensure that the --make-iptables-util-chains argument is set to true (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --make-iptables-util-chains
|
||||
path: '{.makeIPTablesUtilChains}'
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
- flag: --make-iptables-util-chains
|
||||
path: '{.makeIPTablesUtilChains}'
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `makeIPTablesUtilChains` to `true`.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
remove the --make-iptables-util-chains argument from the
|
||||
KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.7
|
||||
text: "Ensure that the --hostname-override argument is not set (Manual)"
|
||||
# This is one of those properties that can only be set as a command line argument.
|
||||
# To check if the property is set as expected, we need to parse the kubelet command
|
||||
# instead reading the Kubelet Configuration file.
|
||||
audit: "/bin/ps -fC $kubeletbin "
|
||||
type: skip
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --hostname-override
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the kubelet service file $kubeletsvc
|
||||
on each worker node and remove the --hostname-override argument from the
|
||||
KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
Not Applicable.
|
||||
scored: false
|
||||
|
||||
- id: 4.2.8
|
||||
text: "Ensure that the eventRecordQPS argument is set to a level which ensures appropriate event capture (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --event-qps
|
||||
path: '{.eventRecordQPS}'
|
||||
compare:
|
||||
op: gte
|
||||
value: 0
|
||||
- flag: --event-qps
|
||||
path: '{.eventRecordQPS}'
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `eventRecordQPS` to an appropriate level.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameter in KUBELET_SYSTEM_PODS_ARGS variable.
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.9
|
||||
text: "Ensure that the --tls-cert-file and --tls-private-key-file arguments are set as appropriate (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --tls-cert-file
|
||||
path: '{.tlsCertFile}'
|
||||
- flag: --tls-private-key-file
|
||||
path: '{.tlsPrivateKeyFile}'
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `tlsCertFile` to the location
|
||||
of the certificate file to use to identify this Kubelet, and `tlsPrivateKeyFile`
|
||||
to the location of the corresponding private key file.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the below parameters in KUBELET_CERTIFICATE_ARGS variable.
|
||||
--tls-cert-file=<path/to/tls-certificate-file>
|
||||
--tls-private-key-file=<path/to/tls-key-file>
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.10
|
||||
text: "Ensure that the --rotate-certificates argument is not set to false (Automated)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --rotate-certificates
|
||||
path: '{.rotateCertificates}'
|
||||
compare:
|
||||
op: eq
|
||||
value: true
|
||||
- flag: --rotate-certificates
|
||||
path: '{.rotateCertificates}'
|
||||
set: false
|
||||
bin_op: or
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to add the line `rotateCertificates` to `true` or
|
||||
remove it altogether to use the default value.
|
||||
If using command line arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
remove --rotate-certificates=false argument from the KUBELET_CERTIFICATE_ARGS
|
||||
variable.
|
||||
Based on your system, restart the kubelet service. For example,
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: true
|
||||
|
||||
- id: 4.2.11
|
||||
text: "Verify that the RotateKubeletServerCertificate argument is set to true (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
bin_op: or
|
||||
test_items:
|
||||
- flag: RotateKubeletServerCertificate
|
||||
path: '{.featureGates.RotateKubeletServerCertificate}'
|
||||
compare:
|
||||
op: nothave
|
||||
value: false
|
||||
- flag: RotateKubeletServerCertificate
|
||||
path: '{.featureGates.RotateKubeletServerCertificate}'
|
||||
set: false
|
||||
remediation: |
|
||||
Edit the kubelet service file $kubeletsvc
|
||||
on each worker node and set the below parameter in KUBELET_CERTIFICATE_ARGS variable.
|
||||
--feature-gates=RotateKubeletServerCertificate=true
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.12
|
||||
text: "Ensure that the Kubelet only makes use of Strong Cryptographic Ciphers (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --tls-cipher-suites
|
||||
path: '{range .tlsCipherSuites[:]}{}{'',''}{end}'
|
||||
compare:
|
||||
op: valid_elements
|
||||
value: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
|
||||
remediation: |
|
||||
If using a Kubelet config file, edit the file to set `TLSCipherSuites` to
|
||||
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
|
||||
or to a subset of these values.
|
||||
If using executable arguments, edit the kubelet service file
|
||||
$kubeletsvc on each worker node and
|
||||
set the --tls-cipher-suites parameter as follows, or to a subset of these values.
|
||||
--tls-cipher-suites=TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
|
||||
Based on your system, restart the kubelet service. For example:
|
||||
systemctl daemon-reload
|
||||
systemctl restart kubelet.service
|
||||
scored: false
|
||||
|
||||
- id: 4.2.13
|
||||
text: "Ensure that a limit is set on pod PIDs (Manual)"
|
||||
audit: "/bin/ps -fC $kubeletbin"
|
||||
audit_config: "/bin/cat $kubeletconf"
|
||||
tests:
|
||||
test_items:
|
||||
- flag: --pod-max-pids
|
||||
path: '{.podPidsLimit}'
|
||||
remediation: |
|
||||
Decide on an appropriate level for this parameter and set it,
|
||||
either via the --pod-max-pids command line parameter or the PodPidsLimit configuration file setting.
|
||||
scored: false
|
||||
304
cfg/rke2-cis-1.7/policies.yaml
Normal file
304
cfg/rke2-cis-1.7/policies.yaml
Normal file
@@ -0,0 +1,304 @@
|
||||
---
|
||||
controls:
|
||||
version: "rke2-cis-1.7"
|
||||
id: 5
|
||||
text: "Kubernetes Policies"
|
||||
type: "policies"
|
||||
groups:
|
||||
- id: 5.1
|
||||
text: "RBAC and Service Accounts"
|
||||
checks:
|
||||
- id: 5.1.1
|
||||
text: "Ensure that the cluster-admin role is only used where required (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Identify all clusterrolebindings to the cluster-admin role. Check if they are used and
|
||||
if they need this role or if they could use a role with fewer privileges.
|
||||
Where possible, first bind users to a lower privileged role and then remove the
|
||||
clusterrolebinding to the cluster-admin role :
|
||||
kubectl delete clusterrolebinding [name]
|
||||
scored: false
|
||||
|
||||
- id: 5.1.2
|
||||
text: "Minimize access to secrets (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove get, list and watch access to Secret objects in the cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.3
|
||||
text: "Minimize wildcard use in Roles and ClusterRoles (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible replace any use of wildcards in clusterroles and roles with specific
|
||||
objects or actions.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.4
|
||||
text: "Minimize access to create pods (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove create access to pod objects in the cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.5
|
||||
text: "Ensure that default service accounts are not actively used. (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Create explicit service accounts wherever a Kubernetes workload requires specific access
|
||||
to the Kubernetes API server.
|
||||
Modify the configuration of each default service account to include this value
|
||||
automountServiceAccountToken: false
|
||||
scored: false
|
||||
|
||||
- id: 5.1.6
|
||||
text: "Ensure that Service Account Tokens are only mounted where necessary (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Modify the definition of pods and service accounts which do not need to mount service
|
||||
account tokens to disable it.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.7
|
||||
text: "Avoid use of system:masters group (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Remove the system:masters group from all users in the cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.8
|
||||
text: "Limit use of the Bind, Impersonate and Escalate permissions in the Kubernetes cluster (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove the impersonate, bind and escalate rights from subjects.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.9
|
||||
text: "Minimize access to create persistent volumes (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove create access to PersistentVolume objects in the cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.10
|
||||
text: "Minimize access to the proxy sub-resource of nodes (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove access to the proxy sub-resource of node objects.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.11
|
||||
text: "Minimize access to the approval sub-resource of certificatesigningrequests objects (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove access to the approval sub-resource of certificatesigningrequest objects.
|
||||
scored: false
|
||||
|
||||
- id: 5.1.12
|
||||
text: "Minimize access to webhook configuration objects (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove access to the validatingwebhookconfigurations or mutatingwebhookconfigurations objects
|
||||
scored: false
|
||||
|
||||
- id: 5.1.13
|
||||
text: "Minimize access to the service account token creation (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Where possible, remove access to the token sub-resource of serviceaccount objects.
|
||||
scored: false
|
||||
|
||||
- id: 5.2
|
||||
text: "Pod Security Standards"
|
||||
checks:
|
||||
- id: 5.2.1
|
||||
text: "Ensure that the cluster has at least one active policy control mechanism in place (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Ensure that either Pod Security Admission or an external policy control system is in place
|
||||
for every namespace which contains user workloads.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.2
|
||||
text: "Minimize the admission of privileged containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of privileged containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.3
|
||||
text: "Minimize the admission of containers wishing to share the host process ID namespace (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of `hostPID` containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.4
|
||||
text: "Minimize the admission of containers wishing to share the host IPC namespace (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of `hostIPC` containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.5
|
||||
text: "Minimize the admission of containers wishing to share the host network namespace (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of `hostNetwork` containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.6
|
||||
text: "Minimize the admission of containers with allowPrivilegeEscalation (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers with `.spec.allowPrivilegeEscalation` set to `true`.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.7
|
||||
text: "Minimize the admission of root containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Create a policy for each namespace in the cluster, ensuring that either `MustRunAsNonRoot`
|
||||
or `MustRunAs` with the range of UIDs not including 0, is set.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.8
|
||||
text: "Minimize the admission of containers with the NET_RAW capability (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers with the `NET_RAW` capability.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.9
|
||||
text: "Minimize the admission of containers with added capabilities (Automated)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Ensure that `allowedCapabilities` is not present in policies for the cluster unless
|
||||
it is set to an empty array.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.10
|
||||
text: "Minimize the admission of containers with capabilities assigned (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Review the use of capabilites in applications running on your cluster. Where a namespace
|
||||
contains applicaions which do not require any Linux capabities to operate consider adding
|
||||
a PSP which forbids the admission of containers which do not drop all capabilities.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.11
|
||||
text: "Minimize the admission of Windows HostProcess containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers that have `.securityContext.windowsOptions.hostProcess` set to `true`.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.12
|
||||
text: "Minimize the admission of HostPath volumes (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers with `hostPath` volumes.
|
||||
scored: false
|
||||
|
||||
- id: 5.2.13
|
||||
text: "Minimize the admission of containers which use HostPorts (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Add policies to each namespace in the cluster which has user workloads to restrict the
|
||||
admission of containers which use `hostPort` sections.
|
||||
scored: false
|
||||
|
||||
- id: 5.3
|
||||
text: "Network Policies and CNI"
|
||||
checks:
|
||||
- id: 5.3.1
|
||||
text: "Ensure that the CNI in use supports NetworkPolicies (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
If the CNI plugin in use does not support network policies, consideration should be given to
|
||||
making use of a different plugin, or finding an alternate mechanism for restricting traffic
|
||||
in the Kubernetes cluster.
|
||||
scored: false
|
||||
|
||||
- id: 5.3.2
|
||||
text: "Ensure that all Namespaces have NetworkPolicies defined (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the documentation and create NetworkPolicy objects as you need them.
|
||||
scored: false
|
||||
|
||||
- id: 5.4
|
||||
text: "Secrets Management"
|
||||
checks:
|
||||
- id: 5.4.1
|
||||
text: "Prefer using Secrets as files over Secrets as environment variables (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
If possible, rewrite application code to read Secrets from mounted secret files, rather than
|
||||
from environment variables.
|
||||
scored: false
|
||||
|
||||
- id: 5.4.2
|
||||
text: "Consider external secret storage (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Refer to the Secrets management options offered by your cloud provider or a third-party
|
||||
secrets management solution.
|
||||
scored: false
|
||||
|
||||
- id: 5.5
|
||||
text: "Extensible Admission Control"
|
||||
checks:
|
||||
- id: 5.5.1
|
||||
text: "Configure Image Provenance using ImagePolicyWebhook admission controller (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and setup image provenance.
|
||||
scored: false
|
||||
|
||||
- id: 5.7
|
||||
text: "General Policies"
|
||||
checks:
|
||||
- id: 5.7.1
|
||||
text: "Create administrative boundaries between resources using namespaces (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the documentation and create namespaces for objects in your deployment as you need
|
||||
them.
|
||||
scored: false
|
||||
|
||||
- id: 5.7.2
|
||||
text: "Ensure that the seccomp profile is set to docker/default in your Pod definitions (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Use `securityContext` to enable the docker/default seccomp profile in your pod definitions.
|
||||
An example is as below:
|
||||
securityContext:
|
||||
seccompProfile:
|
||||
type: RuntimeDefault
|
||||
scored: false
|
||||
|
||||
- id: 5.7.3
|
||||
text: "Apply SecurityContext to your Pods and Containers (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Follow the Kubernetes documentation and apply SecurityContexts to your Pods. For a
|
||||
suggested list of SecurityContexts, you may refer to the CIS Security Benchmark for Docker
|
||||
Containers.
|
||||
scored: false
|
||||
|
||||
- id: 5.7.4
|
||||
text: "The default namespace should not be used (Manual)"
|
||||
type: "manual"
|
||||
remediation: |
|
||||
Ensure that namespaces are created to allow for appropriate segregation of Kubernetes
|
||||
resources and that all new resources are created in a specific namespace.
|
||||
scored: false
|
||||
@@ -19,7 +19,6 @@ import (
|
||||
"encoding/json"
|
||||
"encoding/xml"
|
||||
"fmt"
|
||||
"io/ioutil"
|
||||
"os"
|
||||
"path/filepath"
|
||||
"reflect"
|
||||
@@ -53,7 +52,7 @@ func TestYamlFiles(t *testing.T) {
|
||||
}
|
||||
if !info.IsDir() {
|
||||
t.Logf("reading file: %s", path)
|
||||
in, err := ioutil.ReadFile(path)
|
||||
in, err := os.ReadFile(path)
|
||||
if err != nil {
|
||||
t.Fatalf("error opening file %s: %v", path, err)
|
||||
}
|
||||
|
||||
@@ -16,7 +16,6 @@ package check
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"io/ioutil"
|
||||
"os"
|
||||
"strings"
|
||||
"testing"
|
||||
@@ -29,7 +28,7 @@ var (
|
||||
|
||||
func init() {
|
||||
var err error
|
||||
in, err = ioutil.ReadFile("data")
|
||||
in, err = os.ReadFile("data")
|
||||
if err != nil {
|
||||
panic("Failed reading test data: " + err.Error())
|
||||
}
|
||||
|
||||
@@ -18,7 +18,6 @@ import (
|
||||
"bufio"
|
||||
"encoding/json"
|
||||
"fmt"
|
||||
"io/ioutil"
|
||||
"os"
|
||||
"path/filepath"
|
||||
"sort"
|
||||
@@ -71,7 +70,7 @@ func runChecks(nodetype check.NodeType, testYamlFile, detectedVersion string) {
|
||||
os.Exit(1)
|
||||
}
|
||||
|
||||
in, err := ioutil.ReadFile(testYamlFile)
|
||||
in, err := os.ReadFile(testYamlFile)
|
||||
if err != nil {
|
||||
exitWithError(fmt.Errorf("error opening %s test file: %v", testYamlFile, err))
|
||||
}
|
||||
|
||||
@@ -18,7 +18,7 @@ import (
|
||||
"encoding/json"
|
||||
"errors"
|
||||
"fmt"
|
||||
"io/ioutil"
|
||||
"io"
|
||||
"os"
|
||||
"path"
|
||||
"path/filepath"
|
||||
@@ -241,6 +241,10 @@ func TestMapToCISVersion(t *testing.T) {
|
||||
{kubeVersion: "1.23", succeed: true, exp: "cis-1.23"},
|
||||
{kubeVersion: "1.24", succeed: true, exp: "cis-1.24"},
|
||||
{kubeVersion: "1.25", succeed: true, exp: "cis-1.7"},
|
||||
{kubeVersion: "1.26", succeed: true, exp: "cis-1.8"},
|
||||
{kubeVersion: "1.27", succeed: true, exp: "cis-1.9"},
|
||||
{kubeVersion: "1.28", succeed: true, exp: "cis-1.9"},
|
||||
{kubeVersion: "1.29", succeed: true, exp: "cis-1.9"},
|
||||
{kubeVersion: "gke-1.2.0", succeed: true, exp: "gke-1.2.0"},
|
||||
{kubeVersion: "ocp-3.10", succeed: true, exp: "rh-0.7"},
|
||||
{kubeVersion: "ocp-3.11", succeed: true, exp: "rh-0.7"},
|
||||
@@ -680,7 +684,7 @@ func TestPrintSummary(t *testing.T) {
|
||||
os.Stdout = w
|
||||
printSummary(resultTotals, "totals")
|
||||
w.Close()
|
||||
out, _ := ioutil.ReadAll(r)
|
||||
out, _ := io.ReadAll(r)
|
||||
os.Stdout = rescueStdout
|
||||
|
||||
assert.Contains(t, string(out), "49 checks PASS\n12 checks FAIL\n14 checks WARN\n0 checks INFO\n\n")
|
||||
@@ -699,7 +703,7 @@ func TestPrettyPrintNoSummary(t *testing.T) {
|
||||
noSummary = true
|
||||
prettyPrint(controlsCollection[0], resultTotals)
|
||||
w.Close()
|
||||
out, _ := ioutil.ReadAll(r)
|
||||
out, _ := io.ReadAll(r)
|
||||
os.Stdout = rescueStdout
|
||||
|
||||
assert.NotContains(t, string(out), "49 checks PASS")
|
||||
@@ -718,7 +722,7 @@ func TestPrettyPrintSummary(t *testing.T) {
|
||||
noSummary = false
|
||||
prettyPrint(controlsCollection[0], resultTotals)
|
||||
w.Close()
|
||||
out, _ := ioutil.ReadAll(r)
|
||||
out, _ := io.ReadAll(r)
|
||||
os.Stdout = rescueStdout
|
||||
|
||||
assert.Contains(t, string(out), "49 checks PASS")
|
||||
@@ -736,7 +740,7 @@ func TestWriteStdoutOutputNoTotal(t *testing.T) {
|
||||
noTotals = true
|
||||
writeStdoutOutput(controlsCollection)
|
||||
w.Close()
|
||||
out, _ := ioutil.ReadAll(r)
|
||||
out, _ := io.ReadAll(r)
|
||||
os.Stdout = rescueStdout
|
||||
|
||||
assert.NotContains(t, string(out), "49 checks PASS")
|
||||
@@ -756,7 +760,7 @@ func TestWriteStdoutOutputTotal(t *testing.T) {
|
||||
noTotals = false
|
||||
writeStdoutOutput(controlsCollection)
|
||||
w.Close()
|
||||
out, _ := ioutil.ReadAll(r)
|
||||
out, _ := io.ReadAll(r)
|
||||
|
||||
os.Stdout = rescueStdout
|
||||
|
||||
@@ -766,7 +770,7 @@ func TestWriteStdoutOutputTotal(t *testing.T) {
|
||||
func parseControlsJsonFile(filepath string) ([]*check.Controls, error) {
|
||||
var result []*check.Controls
|
||||
|
||||
d, err := ioutil.ReadFile(filepath)
|
||||
d, err := os.ReadFile(filepath)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
@@ -781,7 +785,7 @@ func parseControlsJsonFile(filepath string) ([]*check.Controls, error) {
|
||||
func parseResultJsonFile(filepath string) (JsonOutputFormat, error) {
|
||||
var result JsonOutputFormat
|
||||
|
||||
d, err := ioutil.ReadFile(filepath)
|
||||
d, err := os.ReadFile(filepath)
|
||||
if err != nil {
|
||||
return result, err
|
||||
}
|
||||
@@ -796,7 +800,7 @@ func parseResultJsonFile(filepath string) (JsonOutputFormat, error) {
|
||||
func parseResultNoTotalsJsonFile(filepath string) ([]*check.Controls, error) {
|
||||
var result []*check.Controls
|
||||
|
||||
d, err := ioutil.ReadFile(filepath)
|
||||
d, err := os.ReadFile(filepath)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
@@ -821,7 +825,7 @@ type restoreFn func()
|
||||
|
||||
func fakeExecutableInPath(execFile, execCode string) (restoreFn, error) {
|
||||
pathenv := os.Getenv("PATH")
|
||||
tmp, err := ioutil.TempDir("", "TestfakeExecutableInPath")
|
||||
tmp, err := os.MkdirTemp("", "TestfakeExecutableInPath")
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
@@ -832,7 +836,7 @@ func fakeExecutableInPath(execFile, execCode string) (restoreFn, error) {
|
||||
}
|
||||
|
||||
if len(execCode) > 0 {
|
||||
ioutil.WriteFile(filepath.Join(tmp, execFile), []byte(execCode), 0700)
|
||||
os.WriteFile(filepath.Join(tmp, execFile), []byte(execCode), 0700)
|
||||
} else {
|
||||
f, err := os.OpenFile(execFile, os.O_CREATE|os.O_EXCL, 0700)
|
||||
if err != nil {
|
||||
|
||||
@@ -5,7 +5,7 @@ import (
|
||||
"encoding/json"
|
||||
"encoding/pem"
|
||||
"fmt"
|
||||
"io/ioutil"
|
||||
"io"
|
||||
"net/http"
|
||||
"os"
|
||||
"strings"
|
||||
@@ -45,7 +45,7 @@ func getKubeVersionFromRESTAPI() (*KubeVersion, error) {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
tb, err := ioutil.ReadFile(tokenfile)
|
||||
tb, err := os.ReadFile(tokenfile)
|
||||
if err != nil {
|
||||
glog.V(2).Infof("Failed reading token file Error: %s", err)
|
||||
return nil, err
|
||||
@@ -143,11 +143,11 @@ func getWebData(srvURL, token string, cacert *tls.Certificate) ([]byte, error) {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
return ioutil.ReadAll(resp.Body)
|
||||
return io.ReadAll(resp.Body)
|
||||
}
|
||||
|
||||
func loadCertificate(certFile string) (*tls.Certificate, error) {
|
||||
cacert, err := ioutil.ReadFile(certFile)
|
||||
cacert, err := os.ReadFile(certFile)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
@@ -3,7 +3,6 @@ package cmd
|
||||
import (
|
||||
"crypto/tls"
|
||||
"fmt"
|
||||
"io/ioutil"
|
||||
"net/http"
|
||||
"net/http/httptest"
|
||||
"os"
|
||||
@@ -12,13 +11,13 @@ import (
|
||||
)
|
||||
|
||||
func TestLoadCertificate(t *testing.T) {
|
||||
tmp, err := ioutil.TempDir("", "TestFakeLoadCertificate")
|
||||
tmp, err := os.MkdirTemp("", "TestFakeLoadCertificate")
|
||||
if err != nil {
|
||||
t.Fatalf("unable to create temp directory: %v", err)
|
||||
}
|
||||
defer os.RemoveAll(tmp)
|
||||
|
||||
goodCertFile, _ := ioutil.TempFile(tmp, "good-cert-*")
|
||||
goodCertFile, _ := os.CreateTemp(tmp, "good-cert-*")
|
||||
_, _ = goodCertFile.Write([]byte(`-----BEGIN CERTIFICATE-----
|
||||
MIICyDCCAbCgAwIBAgIBADANBgkqhkiG9w0BAQsFADAVMRMwEQYDVQQDEwprdWJl
|
||||
cm5ldGVzMB4XDTE5MTEwODAxNDAwMFoXDTI5MTEwNTAxNDAwMFowFTETMBEGA1UE
|
||||
@@ -36,7 +35,7 @@ jLv3UYZRHMpuNS8BJU74BuVzVPHd55RAl+bV8yemdZJ7pPzMvGbZ7zRXWODTDlge
|
||||
CQb9lY+jYErisH8Sq7uABFPvi7RaTh8SS7V7OxqHZvmttNTdZs4TIkk45JK7Y+Xq
|
||||
FAjB57z2NcIgJuVpQnGRYtr/JcH2Qdsq8bLtXaojUIWOOqoTDRLYozdMOOQ=
|
||||
-----END CERTIFICATE-----`))
|
||||
badCertFile, _ := ioutil.TempFile(tmp, "bad-cert-*")
|
||||
badCertFile, _ := os.CreateTemp(tmp, "bad-cert-*")
|
||||
|
||||
cases := []struct {
|
||||
file string
|
||||
|
||||
@@ -1,7 +1,6 @@
|
||||
package cmd
|
||||
|
||||
import (
|
||||
"io/ioutil"
|
||||
"os"
|
||||
"path/filepath"
|
||||
"testing"
|
||||
@@ -45,7 +44,7 @@ func TestGetTestYamlFiles(t *testing.T) {
|
||||
|
||||
// Set up temp config directory
|
||||
var err error
|
||||
cfgDir, err = ioutil.TempDir("", "kube-bench-test")
|
||||
cfgDir, err = os.MkdirTemp("", "kube-bench-test")
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to create temp directory")
|
||||
}
|
||||
@@ -59,7 +58,7 @@ func TestGetTestYamlFiles(t *testing.T) {
|
||||
|
||||
// We never expect config.yaml to be returned
|
||||
for _, filename := range []string{"one.yaml", "two.yaml", "three.yaml", "config.yaml"} {
|
||||
err = ioutil.WriteFile(filepath.Join(d, filename), []byte("hello world"), 0666)
|
||||
err = os.WriteFile(filepath.Join(d, filename), []byte("hello world"), 0666)
|
||||
if err != nil {
|
||||
t.Fatalf("error writing temp file %s: %v", filename, err)
|
||||
}
|
||||
|
||||
92
cmd/util.go
92
cmd/util.go
@@ -1,6 +1,7 @@
|
||||
package cmd
|
||||
|
||||
import (
|
||||
"context"
|
||||
"encoding/json"
|
||||
"fmt"
|
||||
"os"
|
||||
@@ -14,6 +15,10 @@ import (
|
||||
"github.com/fatih/color"
|
||||
"github.com/golang/glog"
|
||||
"github.com/spf13/viper"
|
||||
|
||||
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
||||
"k8s.io/client-go/kubernetes"
|
||||
"k8s.io/client-go/rest"
|
||||
)
|
||||
|
||||
// Print colors
|
||||
@@ -290,13 +295,35 @@ Alternatively, you can specify the version with --version
|
||||
`
|
||||
|
||||
func getKubeVersion() (*KubeVersion, error) {
|
||||
kubeConfig, err := rest.InClusterConfig()
|
||||
if err != nil {
|
||||
glog.V(3).Infof("Error fetching cluster config: %s", err)
|
||||
}
|
||||
isRKE := false
|
||||
if err == nil && kubeConfig != nil {
|
||||
k8sClient, err := kubernetes.NewForConfig(kubeConfig)
|
||||
if err != nil {
|
||||
glog.V(3).Infof("Failed to fetch k8sClient object from kube config : %s", err)
|
||||
}
|
||||
|
||||
if err == nil {
|
||||
isRKE, err = IsRKE(context.Background(), k8sClient)
|
||||
if err != nil {
|
||||
glog.V(3).Infof("Error detecting RKE cluster: %s", err)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if k8sVer, err := getKubeVersionFromRESTAPI(); err == nil {
|
||||
glog.V(2).Info(fmt.Sprintf("Kubernetes REST API Reported version: %s", k8sVer))
|
||||
if isRKE {
|
||||
k8sVer.GitVersion = k8sVer.GitVersion + "-rancher1"
|
||||
}
|
||||
return k8sVer, nil
|
||||
}
|
||||
|
||||
// These executables might not be on the user's path.
|
||||
_, err := exec.LookPath("kubectl")
|
||||
_, err = exec.LookPath("kubectl")
|
||||
if err != nil {
|
||||
glog.V(3).Infof("Error locating kubectl: %s", err)
|
||||
_, err = exec.LookPath("kubelet")
|
||||
@@ -447,7 +474,7 @@ func getPlatformInfo() Platform {
|
||||
}
|
||||
|
||||
func getPlatformInfoFromVersion(s string) Platform {
|
||||
versionRe := regexp.MustCompile(`v(\d+\.\d+)\.\d+[-+](\w+)(?:[.\-])\w+`)
|
||||
versionRe := regexp.MustCompile(`v(\d+\.\d+)\.\d+[-+](\w+)(?:[.\-+]*)\w+`)
|
||||
subs := versionRe.FindStringSubmatch(s)
|
||||
if len(subs) < 3 {
|
||||
return Platform{}
|
||||
@@ -481,6 +508,33 @@ func getPlatformBenchmarkVersion(platform Platform) string {
|
||||
}
|
||||
case "vmware":
|
||||
return "tkgi-1.2.53"
|
||||
case "k3s":
|
||||
switch platform.Version {
|
||||
case "1.23":
|
||||
return "k3s-cis-1.23"
|
||||
case "1.24":
|
||||
return "k3s-cis-1.24"
|
||||
case "1.25", "1.26", "1.27":
|
||||
return "k3s-cis-1.7"
|
||||
}
|
||||
case "rancher":
|
||||
switch platform.Version {
|
||||
case "1.23":
|
||||
return "rke-cis-1.23"
|
||||
case "1.24":
|
||||
return "rke-cis-1.24"
|
||||
case "1.25", "1.26", "1.27":
|
||||
return "rke-cis-1.7"
|
||||
}
|
||||
case "rke2r":
|
||||
switch platform.Version {
|
||||
case "1.23":
|
||||
return "rke2-cis-1.23"
|
||||
case "1.24":
|
||||
return "rke2-cis-1.24"
|
||||
case "1.25", "1.26", "1.27":
|
||||
return "rke2-cis-1.7"
|
||||
}
|
||||
}
|
||||
return ""
|
||||
}
|
||||
@@ -535,3 +589,37 @@ func getOcpValidVersion(ocpVer string) (string, error) {
|
||||
glog.V(1).Info(fmt.Sprintf("getOcpBenchmarkVersion unable to find a match for: %q", ocpOriginal))
|
||||
return "", fmt.Errorf("unable to find a matching Benchmark Version match for ocp version: %s", ocpOriginal)
|
||||
}
|
||||
|
||||
// IsRKE Identifies if the cluster belongs to Rancher Distribution RKE
|
||||
func IsRKE(ctx context.Context, k8sClient kubernetes.Interface) (bool, error) {
|
||||
// if there are windows nodes then this should not be counted as rke.linux
|
||||
windowsNodes, err := k8sClient.CoreV1().Nodes().List(ctx, metav1.ListOptions{
|
||||
Limit: 1,
|
||||
LabelSelector: "kubernetes.io/os=windows",
|
||||
})
|
||||
if err != nil {
|
||||
return false, err
|
||||
}
|
||||
if len(windowsNodes.Items) != 0 {
|
||||
return false, nil
|
||||
}
|
||||
|
||||
// Any node created by RKE should have the annotation, so just grab 1
|
||||
nodes, err := k8sClient.CoreV1().Nodes().List(ctx, metav1.ListOptions{Limit: 1})
|
||||
if err != nil {
|
||||
return false, err
|
||||
}
|
||||
|
||||
if len(nodes.Items) == 0 {
|
||||
return false, nil
|
||||
}
|
||||
|
||||
annos := nodes.Items[0].Annotations
|
||||
if _, ok := annos["rke.cattle.io/external-ip"]; ok {
|
||||
return true, nil
|
||||
}
|
||||
if _, ok := annos["rke.cattle.io/internal-ip"]; ok {
|
||||
return true, nil
|
||||
}
|
||||
return false, nil
|
||||
}
|
||||
|
||||
Some files were not shown because too many files have changed in this diff Show More
Reference in New Issue
Block a user