The Kubernetes component manifests must be owned by root.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-242444	CNTR-K8-003110	SV-242444r961863_rule		Medium

Description

The Kubernetes manifests are those files that contain the arguments and settings for the Control Plane services. These services are etcd, the api server, controller, proxy, and scheduler. If these files can be changed, the scheduler will be implementing the changes immediately. Many of the security settings within the document are implemented through these manifests.

STIG	Date
Kubernetes Security Technical Implementation Guide	2024-08-22

Details

Check Text (C-45719r712686_chk)

Review the ownership of the Kubernetes manifests files by using the command:

stat -c %U:%G /etc/kubernetes/manifests/* | grep -v root:root

If the command returns any non root:root file permissions, this is a finding.

Fix Text (F-45677r712687_fix)

Change the ownership of the manifest files to root: root by executing the command:

chown root:root /etc/kubernetes/manifests/*