Title

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

Discussion

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.

Check Content

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

Change the ownership of the manifest files to root: root by executing the command: chown root:root /etc/kubernetes/manifests/*

Additional Identifiers

Rule ID: SV-242444r879887_rule

Vulnerability ID: V-242444

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.