Details

Do not allow all requests.

Rationale:

Setting admission control plugin AlwaysAdmit allows all requests and do not filter any requests.

Solution

Edit the API server pod specification file /etc/kubernetes/manifests/kube-apiserver.yaml on the master node and set the –enable-admission-plugins parameter to a value that does not include AlwaysAdmit.

Impact:

Only requests explicitly allowed by the admissions control plugin would be served.

Supportive Information

The following resource is also helpful.

• https://workbench.cisecurity.org/files/2125

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

References

• 800-53|AC-6
• CSCv6|14

Source

• Tenable.com/audits