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More Info:

The RBAC role cluster-admin provides wide-ranging powers over the environment and should be used only where and when needed.

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Risk Level

High

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Address

Security

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Compliance Standards

  • APRA CPS 234 (Australia)
  • BSI C5 (Germany)
  • Brazil LGPD
  • CCPA / CPRA (California)
  • CIS Critical Security Controls v8
  • CIS OKE
  • CMMC 2.0
  • CSA Cloud Controls Matrix v4
  • DPDPA
  • Digital Operational Resilience Act (EU)
  • Essential 8
  • ISO/IEC 27017
  • ISO/IEC 27018
  • ISO/IEC 27701
  • KSA PDPL
  • MAS Technology Risk Management (Singapore)
  • MITRE ATT&CK (Cloud)
  • NIS2 Directive
  • NIST SP 800-171
  • NYDFS 23 NYCRR 500
  • SWIFT Customer Security Controls Framework
  • Sarbanes-Oxley IT General Controls
  • Securities and Exchange Board of India (SEBI) - Cloud Security Adoption Framework
  • UK NCSC Cyber Assessment Framework

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Triage and Remediation

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Remediation

Using Console

Obtain a list of the principals who have access to the cluster-admin role by reviewingthe clusterrolebinding output for each role binding that has access to the clusteradmin role.kubectl get clusterrolebindings -o=customcolumns=NAME:.metadata.name,ROLE:.roleRef.name,SUBJECT:.subjects[*].name Review each principal listed and ensure that cluster-admin privilege is required for it.

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Additional Reading: