Title

The Kubernetes etcd must have file permissions set to 644 or more restrictive. (Cat II impact)

Discussion

The Kubernetes etcd key-value store provides a way to store data to the Control Plane. If these files can be changed, data to API object and Control Plane would be compromised.

Check Content

Review the permissions of the Kubernetes etcd by using the command: ls -AR /var/lib/etcd/* If any of the files have permissions more permissive than "644", this is a finding.

Fix Text

Change the permissions of the manifest files to "644" by executing the command: chmod -R 644 /var/lib/etcd/*

Additional Identifiers

Rule ID: SV-242459r918200_rule

Vulnerability ID: V-242459

Group Title: SRG-APP-000516-CTR-001335

Expert Comments

CCIs tied to check.

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