The Kubernetes Kubelet certificate authority must be owned by root.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-242450	CNTR-K8-003170	SV-242450r712706_rule		Medium

Description
The Kubernetes kube proxy kubeconfig contain the argument and setting for the Master Nodes. These settings contain network rules for restricting network communication between pods, clusters, and networks. If these files can be changed, data traversing between the Kubernetes Control Panel components would be compromised. Many of the security settings within the document are implemented through this file.

Description

The Kubernetes kube proxy kubeconfig contain the argument and setting for the Master Nodes. These settings contain network rules for restricting network communication between pods, clusters, and networks. If these files can be changed, data traversing between the Kubernetes Control Panel components would be compromised. Many of the security settings within the document are implemented through this file.

STIG	Date
Kubernetes Security Technical Implementation Guide	2021-04-14

Details

Check Text ( C-45725r712704_chk )
Check if Kube-Proxy is running and obtain --kubeconfig parameter use the following command: ps -ef \| grep kube-proxy If Kube-Proxy exists: Review the permissions of the Kubernetes Kube Proxy by using the command: stat -c %a If the command returns any non root:root file permissions, this is a finding.

Fix Text (F-45683r712705_fix)
Change the permissions of the Kube Proxy to "root" by executing the command: chown root:root .