Title

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

Discussion

The Kubernetes Kube Proxy kubeconfig contain the argument and setting for the Control Planes. These settings contain network rules for restricting network communication between pods, clusters, and networks. If these files can be changed, data traversing between the Kubernetes Control Panel components would be compromised. Many of the security settings within the document are implemented through this file.

Check Content

Check if Kube-Proxy is running and obtain --kubeconfig parameter use the following command: ps -ef | grep kube-proxy If Kube-Proxy exists: Review the permissions of the Kubernetes Kube Proxy by using the command: stat -c %a <location from --kubeconfig> If the file has permissions more permissive than "644", this is a finding.

Fix Text

Change the permissions of the Kube Proxy to "644" by executing the command: chmod 644 <location from kubeconfig>.

Additional Identifiers

Rule ID: SV-242447r927260_rule

Vulnerability ID: V-242447

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.