Title

The Kubernetes component PKI must be owned by root. (Cat II impact)

Discussion

The Kubernetes PKI directory contains all certificates (.crt 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. Many of the security settings within the document are implemented through this file.

Check Content

Review the PKI files in Kubernetes by using the command: ls -laR /etc/kubernetes/pki/ If the command returns any non root:root file permissions, this is a finding.

Fix Text

Change the ownership of the PKI to root: root by executing the command: chown -R root:root /etc/kubernetes/pki/

Additional Identifiers

Rule ID: SV-242451r961863_rule

Vulnerability ID: V-242451

Group Title: SRG-APP-000516-CTR-001325

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.