# Cis Ocp Vm V100 1 9

> Ensure kubevirt cache directory permission is set to 755 or more restrictive (Automated)

- Skill: `cyberstrikeus/cis-ocp-vm-v100-1-9` (Agent Skill)
- Install (CLI): `npx skillmds@latest add cyberstrikeus/cis-ocp-vm-v100-1-9`
- Raw SKILL.md: https://api.skillmd.com/api/skills/cyberstrikeus/cis-ocp-vm-v100-1-9/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-ocp-vm-v100-1-9

---


# CIS 1.9 — Ensure kubevirt cache directory permission is set to 755 or more restrictive

## Profile Applicability

- Level 1

## Description

Setting the `kubevirt` private directory to `755` or more restrictive limits access to security related administrative functionality to approved administrators.

## Rationale

This configuration ensures that the directory where virt-handler stores the virtual machine configuration for caching is restricted to administrators and Openshift Virtualization privileged node components.

## Impact

None.

## Audit Procedure

Directory permissions for the `virt-handler` pods, run the following command:

```bash
$ for pod in $(oc get po -n openshift-cnv -l kubevirt.io=virt-handler --no-headers -o custom-columns=":metadata.name"); do oc exec $pod -ti -n openshift-cnv -- stat -c %a /var/run/kubevirt-private ;done
```

Should return `755` or if the file doesn't exist then the corresponding feature gate is not enabled and this check can be safely ignored.

## Remediation

Update the permissions on each virt-handller using `chmod`:

```bash
$ oc exec <virt-handler-pod> -ti -n openshift-cnv -- chmod 755 /var/run/kubevirt-private
```

## Default Value

The default permissions of this directory are `755`.

## References

- CIS Redhat OpenShift Virtual Machine Extension Benchmark v1.0.0, Section 1.9

## CIS Controls

| Controls Version | Control                                               | IG 1 | IG 2 | IG 3 |
| ---------------- | ----------------------------------------------------- | ---- | ---- | ---- |
| v8               | 3.3 Configure Data Access Control Lists               | Y    | Y    | Y    |
| v7               | 14.6 Protect Information through Access Control Lists | Y    | Y    | Y    |

## MITRE ATT&CK Mappings

| Tactic               | Technique                                         |
| -------------------- | ------------------------------------------------- |
| Privilege Escalation | T1068 Exploitation for Privilege Escalation       |
| Defense Evasion      | T1222 File and Directory Permissions Modification |

## Profile

- Level 1 - OpenShift Virtualization