# Cis Aks V180 4.1.8

> Minimize access to create persistent volumes (Manual)

- Skill: `cyberstrikeus/cis-aks-v180-4-1-8` (Agent Skill)
- Install (CLI): `npx skillmds@latest add cyberstrikeus/cis-aks-v180-4-1-8`
- Raw SKILL.md: https://api.skillmd.com/api/skills/cyberstrikeus/cis-aks-v180-4-1-8/raw
- Safety review: PASS (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: DevOps & Infra
- Author: cyberstrikeus (https://skillmd.com/u/cyberstrikeus)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/cyberstrikeus/cis-aks-v180-4-1-8

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# 4.1.8 Minimize access to create persistent volumes (Manual)

## Profile Applicability

- Level 1

## Description

The ability to create persistent volumes in a cluster can provide an opportunity for privilege escalation, via the creation of `hostPath` volumes. As persistent volumes are not covered by Pod Security Admission, a user with access to create persistent volumes may be able to get access to sensitive files from the underlying host even where restrictive Pod Security Admission policies are in place.

## Rationale

The ability to create persistent volumes in a cluster opens up possibilities for privilege escalation and should be restricted, where possible.

## Audit

Review the users who have create access to `PersistentVolume` objects in the Kubernetes API.

## Remediation

Where possible, remove `create` access to `PersistentVolume` objects in the cluster.

## References

1. [https://kubernetes.io/docs/concepts/security/rbac-good-practices/#persistent-volume-creation](https://kubernetes.io/docs/concepts/security/rbac-good-practices/#persistent-volume-creation)

## CIS Controls

| Controls Version | Control                                           | IG 1 | IG 2 | IG 3 |
| ---------------- | ------------------------------------------------- | ---- | ---- | ---- |
| v8               | 6.8 Define and Maintain Role-Based Access Control |      |      | x    |