4.1.5 Ensure that the --kubeconfig kubelet.conf file permissions are set to 644 or more restrictive

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Information

Ensure that the kubelet.conf file has permissions of 644 or more restrictive.

Rationale:

The kubelet.conf file is the kubeconfig file for the node, and controls various parameters that set the behavior and identity of the worker node. You should restrict its file permissions to maintain the integrity of the file. The file should be writable by only the administrators on the system.

Impact:

None

Solution

Run the below command (based on the file location on your system) on the each worker node. For example,

chmod 644 /etc/kubernetes/kubelet.conf

Default Value:

By default, kubelet.conf file has permissions of 640.

See Also

https://workbench.cisecurity.org/files/2968