# Cis K8S V1120 1.1.10

> Ensure that the Container Network Interface file ownership is set to root:root (Manual)

- Skill: `cyberstrikeus/cis-k8s-v1120-1-1-10` (Agent Skill)
- Install (CLI): `npx skillmds@latest add cyberstrikeus/cis-k8s-v1120-1-1-10`
- Raw SKILL.md: https://api.skillmd.com/api/skills/cyberstrikeus/cis-k8s-v1120-1-1-10/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-k8s-v1120-1-1-10

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# 1.1.10 Ensure that the Container Network Interface file ownership is set to root:root (Manual)

## Profile Applicability

- Level 1 - Master Node

## Description

Ensure that the Container Network Interface files have ownership set to `root:root`.

## Rationale

Container Network Interface provides various networking options for overlay networking. You should consult their documentation and restrict their respective file permissions to maintain the integrity of those files. Those files should be owned by `root:root`.

## Impact

None

## Audit

Run the below command (based on the file location on your system) on the Control Plane node. For example,

```bash
stat -c %U:%G <path/to/cni/files>
```

Verify that the ownership is set to `root:root`.

## Remediation

Run the below command (based on the file location on your system) on the Control Plane node. For example,

```bash
chown root:root <path/to/cni/files>
```

## Default Value

NA

## References

1. [https://kubernetes.io/docs/concepts/cluster-administration/networking/](https://kubernetes.io/docs/concepts/cluster-administration/networking/)

## CIS Controls

| Controls Version | Control                                                                   | IG 1 | IG 2 | IG 3 |
| ---------------- | ------------------------------------------------------------------------- | ---- | ---- | ---- |
| v8               | 5.4 Restrict Administrator Privileges to Dedicated Administrator Accounts | \*   | \*   | \*   |
| v7               | 4 Controlled Use of Administrative Privileges                             |      |      |      |