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01d7a8ac00
* Add `rolePodExecAttach` and `clusterrolePodExecAttach` checks * Add schema tests * Add clusterrolebindingPodExecAttach, rolebindingRolePodExecAttach, and rolebindingClusterRolePodExecAttach checks + schema-tests * Add the new checks to the full example config * Update checks' success/failure messages and add some helpful comments * Update binding-related check messaging RE: roleRef pointing to a nonexistent resource, and add tests for this case * Update rolebindingClusterRolePodExecAttach and rolebindingRolePodExecAttach to pass if a binding roleRef is a different kind, and schema tests to include a namespace * Add additional schema tests, remove "ignore default ClusterRole|Role bindings" code from checks that actually have no default bindings
82 lines
2.6 KiB
YAML
82 lines
2.6 KiB
YAML
successMessage: The RoleBinding does not reference a Role allowing Pod exec or attach
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failureMessage: The RoleBinding references a Role that allows Pods/exec, allows pods/attach, or that does not exist
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category: Security
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target: rbac.authorization.k8s.io/RoleBinding
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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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# Pass RoleBindings that point to a ClusterRole.
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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: "Role"
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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: "Role"
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name:
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type: string
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minLength: 1
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additionalSchemaStrings:
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rbac.authorization.k8s.io/Role: |
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type: object
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# This schema is validated for all roleBindings, regardless of their roleRef.
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{{ if eq .roleRef.kind "Role" }}
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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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anyOf:
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- const: ""
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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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anyOf:
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- const: '*'
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- const: "pods/exec"
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- const: "pods/attach"
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verbs:
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type: array
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contains:
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type: string
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anyOf:
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- const: '*'
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# An exec is also possible by `get`ing a web socket.
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- const: 'get'
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- const: 'create'
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{{ end }}
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