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https://github.com/FairwindsOps/polaris.git
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742b21c6a2
* Add `clusterrolebindingClusterAdmin`, `rolebindingClusterAdminRole`, and `rolebindingClusterAdminClusterRole` checks + schema tests * Update `rolebindingClusterAdminClusterRole` check to explicitly match the `cluster-admin` default ClusterRole, fix `...all_verbs` schema test, add schema checks for unrelated permissions
89 lines
3.0 KiB
YAML
89 lines
3.0 KiB
YAML
successMessage: The ClusterRoleBinding does not reference the default cluster-admin ClusterRole or one with wildcard permissions
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failureMessage: The ClusterRoleBinding references the default cluster-admin ClusterRole or one with wildcard permissions
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category: Security
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target: rbac.authorization.k8s.io/ClusterRoleBinding
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schemaString: |
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'$schema': http://json-schema.org/draft-07/schema
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type: object
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anyOf:
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# Do not alert on default ClusterRoleBindings.
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- required: ["metadata"]
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properties:
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metadata:
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type: object
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required: ["name"]
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properties:
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name:
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type: string
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anyOf:
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- const: "cluster-admin"
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- const: "system:controller:generic-garbage-collector"
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- const: "system:controller:namespace-controller"
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- required: ["roleRef"]
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properties:
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roleRef:
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required: ["apiGroup", "kind", "name"]
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properties:
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apiGroup:
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type: string
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const: "rbac.authorization.k8s.io"
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kind:
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type: string
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const: "ClusterRole"
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name:
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type: string
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minLength: 1
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not:
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const: "cluster-admin"
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additionalSchemaStrings:
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rbac.authorization.k8s.io/ClusterRole: |
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type: object
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# Do not alert on default ClusterRoleBindings.
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{{ if and (ne .metadata.name "cluster-admin") (ne .metadata.name "system:controller:generic-garbage-collector") (ne .metadata.name "system:controller:namespace-controller") }}
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required: ["metadata", "rules"]
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allOf:
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- properties:
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metadata:
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required: ["name"]
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properties:
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name:
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type: string
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const: "{{ .roleRef.name }}"
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- properties:
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rules:
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type: array
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items:
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type: object
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not:
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required: ["apiGroups", "resources", "verbs"]
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properties:
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apiGroups:
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type: array
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contains:
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type: string
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const: "*"
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resources:
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type: array
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contains:
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type: string
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const: '*'
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verbs:
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type: array
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uniqueItems: true
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oneOf:
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- contains:
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type: string
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const: '*'
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- minItems: 7
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items:
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type: string
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enum:
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- "get"
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- "list"
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- "watch"
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- "create"
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- "update"
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- "patch"
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- "delete"
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{{ end }}
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