Details

Ensure that the API server pod specification file ownership is set to root:root.

Rationale:

The API server pod specification file controls various parameters that set the behavior of the API server. You should set its file ownership to maintain the integrity of the file. The file should be owned by root:root.

Impact:

None

Solution

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

chown root:root /etc/kubernetes/manifests/kube-apiserver.yaml

Default Value:

By default, the kube-apiserver.yaml file ownership is set to root:root.

Supportive Information

The following resource is also helpful.

• https://workbench.cisecurity.org/files/3371

This security hardening control applies to the following category of controls within NIST 800-53: Configuration Management.This control applies to the following type of system Unix.

References

• 800-53|CM-6b.
• CSCv6|3.1
• CSCv6|5.1
• CSCv7|4

Source

• Tenable.com/audits