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V-242467

CAT II (Medium)

The Kubernetes PKI keys must have file permissions set to 600 or more restrictive.

Rule ID

SV-242467r961863_rule

STIG

Kubernetes Security Technical Implementation Guide

Version

V2R6

CCIs

CCI-000366

Discussion

The Kubernetes PKI directory contains all certificate key files supporting secure network communications in the Kubernetes Control Plane. If these files can be modified, data traversing within the architecture components would become unsecure and compromised.

Check Content

Review the permissions of the Kubernetes PKI key files by using the command:

sudo find /etc/kubernetes/pki -name "*.key" | xargs stat -c '%n %a'

If any of the files have permissions more permissive than "600", this is a finding.

Fix Text

Change the ownership of the key files to "600" by executing the command: 

find /etc/kubernetes/pki -name "*.key" | xargs chmod 600