cis-k8s-v1120-1-1-19

name	cis-k8s-v1120-1.1.19
description	Ensure that the Kubernetes PKI directory and file ownership is set to root:root (Automated)
category	cis-k8s
version	1.12.0
author	cyberstrike-official
tags	["cis","kubernetes","control-plane","config-files","pki","certificates","ownership","level1"]
cis_id	1.1.19
cis_benchmark	CIS Kubernetes Benchmark v1.12.0
tech_stack	["kubernetes"]
cwe_ids	[]
chains_with	[]
prerequisites	[]
severity_boost	{}

1.1.19 Ensure that the Kubernetes PKI directory and file ownership is set to root:root (Automated)

Profile Applicability

• Level 1 - Master Node

Description

Ensure that the Kubernetes PKI directory and file ownership is set to root:root.

Rationale

Kubernetes makes use of a number of certificates as part of its operation. You should set the ownership of the directory containing the PKI information and all files in that directory to maintain their integrity. The directory and 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,

ls -laR /etc/kubernetes/pki/

Verify that the ownership of all files and directories in this hierarchy 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,

chown -R root:root /etc/kubernetes/pki/

Default Value

By default, the /etc/kubernetes/pki/ directory and all of the files and directories contained within it, are set to be owned by the root user.

References

1. https://kubernetes.io/docs/admin/kube-apiserver/

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	*	*	*