V-242453—The Kubernetes kubelet KubeConfig file must be owned by root.

CAT II - Medium

CNTR-K8-003200

>Control Description

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.

>Remediation

Change the ownership of the kubelet.conf to root: root by executing the command: chown root:root /etc/kubernetes/kubelet.conf

>CCI References

CCI-000366

Control Correlation Identifiers (CCIs) map STIG findings to NIST 800-53 controls.

>Cross-Framework Mappings

NIST SP 800-53 r5

via DISA CCI List

CM-6

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