cis-k8s-v1120-1-1-9

name	cis-k8s-v1120-1.1.9
description	Ensure that the Container Network Interface file permissions are set to 600 or more restrictive (Manual)
category	cis-k8s
version	1.12.0
author	cyberstrike-official
tags	["cis","kubernetes","control-plane","config-files","cni","permissions","level1"]
cis_id	1.1.9
cis_benchmark	CIS Kubernetes Benchmark v1.12.0
tech_stack	["kubernetes"]
cwe_ids	[]
chains_with	[]
prerequisites	[]
severity_boost	{}

1.1.9 Ensure that the Container Network Interface file permissions are set to 600 or more restrictive (Manual)

Profile Applicability

• Level 1 - Master Node

Description

Ensure that the Container Network Interface files have permissions of 600 or more restrictive.

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 writable by only the administrators on the system.

Impact

None

Audit

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

stat -c %a <path/to/cni/files>

Verify that the permissions are 600 or more restrictive.

Remediation

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

chmod 600 <path/to/cni/files>

Default Value

NA

References

1. https://kubernetes.io/docs/concepts/cluster-administration/networking/

CIS Controls

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