Minimize access to create persistent volumes

中レベル 1手動レビューeks

説明

Permission to create persistent storage in EKS should be granted only where it is required. In EKS, this includes direct creation of PersistentVolume objects and, more commonly, the ability to trigger dynamic provisioning through PersistentVolumeClaim and StorageClass use, because EKS storage integrations such as the Amazon EBS CSI driver and EKS Auto Mode can automatically provision backing storage when applications request it. The benchmark marks this recommendation Manual.

チェック方法

監査方法: 手動レビュー

この推奨事項は自動ではチェックできません。--include-manual を指定すると、スキャン結果にこの手順付きで一覧表示されます。

Review EKS RBAC to identify any users, groups, or service accounts that can create PersistentVolume, PersistentVolumeClaim, or StorageClass resources. In EKS, this review should give particular attention to PersistentVolumeClaim and StorageClass permissions because persistent storage is commonly provisioned dynamically through CSI drivers and EKS storage integrations rather than by manually creating PersistentVolume objects.

修正方法

修正方法: ガイダンスまたは IaC パッチ

Remove persistent-storage creation rights from any user, group, or service account that does not require them, and replace broad assignments with the lowest-privilege role and narrowest scope possible. In EKS, prioritize PersistentVolumeClaim and StorageClass permissions because persistent storage is commonly provisioned dynamically through CSI drivers rather than by manually creating PersistentVolume objects. Limit direct PersistentVolume and StorageClass administration to approved administrators, and allow workloads to use only the PersistentVolumeClaim access required for approved storage classes. After changes are made, verify that required applications can still provision storage through the intended CSI driver path.

プロパティ

オペレーティングシステム: すべて
タグ: ekspoliciesrbac
参照: CIS Amazon Elastic Kubernetes Service (EKS) Benchmark v2.0.0 - 4.1.9 Minimize access to create persistent volumes