STIGQter: STIG Summary: Kubernetes Security Technical Implementation Guide Version: 2 Release: 6 Benchmark Date: 01 Apr 2026:

Kubernetes Controller Manager must have the SSL Certificate Authority set.

DISA Rule

SV-242421r1043178_rule

Vulnerability Number

V-242421

Group Title

SRG-APP-000219-CTR-000550

Rule Version

CNTR-K8-001430

Severity

CAT II

CCI(s)

• CCI-001184 - Protect the authenticity of communications sessions.

Weight

10

Fix Recommendation

Edit the Kubernetes Controller Manager manifest file in the /etc/kubernetes/manifests directory on the Kubernetes Control Plane.

Set the value of "--root-ca-file" to path containing Approved Organizational Certificate.

Check Contents

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

If the setting "--root-ca-file" is not set in the Kubernetes Controller Manager manifest file or contains no value, this is a finding.

Vulnerability Number

V-242421

Documentable

False

Rule Version

CNTR-K8-001430

Severity Override Guidance

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

If the setting "--root-ca-file" is not set in the Kubernetes Controller Manager manifest file or contains no value, this is a finding.

Check Content Reference

M

Target Key

5376