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V-245542

CAT I (High)

Kubernetes API Server must disable basic authentication to protect information in transit.

Rule ID

SV-245542r961632_rule

STIG

Kubernetes Security Technical Implementation Guide

Version

V2R6

CCIs

CCI-002448

Discussion

Kubernetes basic authentication sends and receives request containing username, uid, groups, and other fields over a clear text HTTP communication. Basic authentication does not provide any security mechanisms using encryption standards. PKI certificate-based authentication must be set over a secure channel to ensure confidentiality and integrity. Basic authentication must not be set in the manifest file.

Check Content

Change to the /etc/kubernetes/manifests/ directory on the Kubernetes Control Plane. Run the command:
grep -i basic-auth-file * 

If "basic-auth-file" is set in the Kubernetes API server manifest file this is a finding.

Fix Text

Edit the Kubernetes API Server manifest file in the /etc/kubernetes/manifests directory on the Kubernetes Control Plane. Remove the setting "--basic-auth-file".