Title

The Kubernetes kubelet KubeConfig file must be owned by root. (Cat II impact)

Discussion

The Kubernetes kubelet agent registers nodes with the API server and performs health checks to containers within pods. If these files can be modified, the information system would be unaware of pod or container degradation. Many of the security settings within the document are implemented through this file.

Check Content

Review the Kubernetes Kubelet conf files by using the command: stat -c %U:%G /etc/kubernetes/kubelet.conf| 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 kubelet.conf to root: root by executing the command: chown root:root /etc/kubernetes/kubelet.conf

Additional Identifiers

Rule ID: SV-242453r961863_rule

Vulnerability ID: V-242453

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.