CNTR-K8-000470 - The Kubernetes API server must have Alpha APIs disabled.

Information

Kubernetes allows alpha API calls within the API server. The alpha features are disabled by default since they are not ready for production and likely to change without notice. These features may also contain security issues that are rectified as the feature matures. To keep the Kubernetes cluster secure and stable, these alpha features must not be used.

Solution

Edit any manifest file that contains the '--feature-gates' setting with 'AllAlpha' set to 'true'.

Set the value of 'AllAlpha' to 'false' or remove the setting completely. (AllAlpha - default=false)

See Also

https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_Kubernetes_V2R1_STIG.zip

Item Details

Category: ACCESS CONTROL

References: 800-53|AC-3, CAT|II, CCI|CCI-000213, Rule-ID|SV-242400r960792_rule, STIG-ID|CNTR-K8-000470, Vuln-ID|V-242400

Plugin: Unix

Control ID: a68fb98ecae11890e017f5b0d6df56c76e85bf069b16b914ff6991e4f981dbf2