info-tech-canon/infospace/standards/caring/benchmarks/kubernetes-rbac/access-descriptors.yaml

id: benchmark/caring/kubernetes-rbac/access-descriptors
title: Kubernetes RBAC CARING Access Descriptors
status: candidate
benchmark: benchmark/caring/kubernetes-rbac
descriptor_classes:
  - declared_access
  - effective_access
  - derived_capability
  - induced_access
descriptors:
  - id: descriptor/namespace-pod-reader/declared
    case_id: namespace-pod-reader
    descriptor_class: declared_access
    subject: serviceaccount:tenant-a:report-viewer
    organization_relation: customer-operated-service
    canonical_role: Viewer
    scope: namespace:tenant-a
    plane: Runtime
    capabilities:
      - get pods
      - list pods
      - watch pods
    exposure_mode: metadata-and-runtime-state
    lifecycle_state: steady-state-observation
    conditions:
      - bound by RoleBinding in namespace tenant-a
    restrictions:
      - no pod mutation
      - no secret read
      - namespace is not accepted as tenant boundary without additional evidence
    native_evidence:
      - Role/report-viewer
      - RoleBinding/report-viewer-binding
      - ServiceAccount/report-viewer
  - id: descriptor/workload-creator/declared
    case_id: workload-creator-derived-execution
    descriptor_class: declared_access
    subject: serviceaccount:tenant-a:job-runner
    organization_relation: customer-operated-automation
    canonical_role: Doer
    scope: namespace:tenant-a
    plane: Runtime
    capabilities:
      - create pods
      - get pods
      - delete pods
    exposure_mode: workload-specification-control
    lifecycle_state: job-execution
    conditions:
      - bound by RoleBinding in namespace tenant-a
    restrictions:
      - no direct secret get/list/watch declared
    native_evidence:
      - Role/job-runner
      - RoleBinding/job-runner-binding
      - ServiceAccount/job-runner
  - id: descriptor/workload-creator/effective
    case_id: workload-creator-derived-execution
    descriptor_class: effective_access
    subject: serviceaccount:tenant-a:job-runner
    organization_relation: customer-operated-automation
    canonical_role: Doer
    scope: namespace:tenant-a
    plane: Runtime
    capabilities:
      - create workload
      - select pod service account
      - influence mounted volumes
      - execute container image
    exposure_mode: mediated-runtime-execution
    lifecycle_state: job-execution
    conditions:
      - pod admission and service-account mount behavior determine actual reach
    restrictions:
      - effective access must be checked against admission policy and service-account permissions
    native_evidence:
      - create pods verb
      - pod spec serviceAccountName
      - projected service account token behavior
  - id: descriptor/workload-creator/derived
    case_id: workload-creator-derived-execution
    descriptor_class: derived_capability
    subject: serviceaccount:tenant-a:job-runner
    organization_relation: customer-operated-automation
    canonical_role: Doer
    scope: namespace:tenant-a
    plane: Runtime
    capabilities:
      - execute arbitrary workload image
      - use mounted service account identity
      - read mounted runtime inputs
    exposure_mode: derived-execution-and-identity-use
    lifecycle_state: job-execution
    conditions:
      - derived from create pods permission
    restrictions:
      - must be bounded by admission controls, image policy, and service-account selection rules
    native_evidence:
      - Role/job-runner create pods
  - id: descriptor/workload-creator/induced
    case_id: workload-creator-derived-execution
    descriptor_class: induced_access
    subject: serviceaccount:tenant-a:job-runner
    organization_relation: customer-operated-automation
    canonical_role: Doer
    scope: namespace:tenant-a
    plane: Secret
    capabilities:
      - potential secret exposure through mounted volumes
      - potential token exposure through mounted identity
    exposure_mode: induced-secret-and-identity-exposure
    lifecycle_state: job-execution
    conditions:
      - induced path exists only when workload can mount or reach sensitive material
    restrictions:
      - classify as candidate finding until manifests, admission, and secret references are reviewed
    native_evidence:
      - pod volume mounts
      - service account token projection
      - secret references in pod spec
  - id: descriptor/cluster-secret-reader/declared
    case_id: cluster-secret-reader
    descriptor_class: declared_access
    subject: serviceaccount:platform:inventory
    organization_relation: platform-service-provider
    canonical_role: Auditor
    scope: cluster
    plane: Secret
    capabilities:
      - get secrets
      - list secrets
      - watch secrets
    exposure_mode: sensitive-data-read
    lifecycle_state: operational-inventory
    conditions:
      - bound by ClusterRoleBinding
    restrictions:
      - requires governance review and audit evidence
    native_evidence:
      - ClusterRole/secret-reader
      - ClusterRoleBinding/inventory-secret-reader
      - ServiceAccount/inventory
  - id: descriptor/namespace-boundary/review
    case_id: namespace-as-tenant-boundary
    descriptor_class: effective_access
    subject: tenant-boundary-claim:tenant-a
    organization_relation: platform-provider
    canonical_role: Governor
    scope: namespace:tenant-a
    plane: Policy
    capabilities:
      - claim tenant isolation
      - review access and runtime boundaries
    exposure_mode: governance-claim
    lifecycle_state: design-review
    conditions:
      - claim must be supported by access, network, runtime, data, and governance evidence
    restrictions:
      - namespace alone is insufficient evidence
    native_evidence:
      - Namespace/tenant-a
      - RoleBinding set
      - NetworkPolicy set
      - ResourceQuota set