Ensure that the cluster-admin role is only used where required

KritisLevel 1Tinjauan manualkubernetes

Deskripsi

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

Cara pemeriksaan

Metode audit: Tinjauan manual

Rekomendasi ini tidak dapat diperiksa secara otomatis. Pemindaian akan menampilkannya beserta petunjuk ini saat Anda memberikan opsi --include-manual.

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

Cara perbaikan

Metode perbaikan: Panduan atau patch infrastruktur

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]

Properti

Sistem operasi: Apa saja
Tag: kubernetespoliciesrbac
Referensi: CIS Kubernetes Benchmark v2.1.0 - 5.1.1 Ensure that the cluster-admin role is only used where required