STIGQter: STIG Summary: Rancher Government Solutions RKE2 Security Technical Implementation Guide Version: 2 Release: 7 Benchmark Date: 01 Jul 2026:

The Kubernetes API server must have anonymous authentication disabled.

DISA Rule

SV-254562r1137640_rule

Vulnerability Number

V-254562

Group Title

SRG-APP-000033-CTR-000100

Rule Version

CNTR-R2-000160

Severity

CAT I

CCI(s)

• CCI-000213 - Enforce approved authorizations for logical access to information and system resources in accordance with applicable access control policies.

Weight

10

Fix Recommendation

Edit the RKE2 Configuration File /etc/rancher/rke2/config.yaml on the RKE2 Control Plane and set the following "kube-apiserver-arg" argument:

- anonymous-auth=false

Once the configuration file is updated, restart the RKE2 Server. Run the command:
systemctl restart rke2-server

Check Contents

Ensure anonymous-auth argument is set correctly.

Run this command on the RKE2 Control Plane:
/bin/ps -ef | grep kube-apiserver | grep -v grep

If --anonymous-auth is set to "true" or is not configured, this is a finding.

Vulnerability Number

V-254562

Documentable

False

Rule Version

CNTR-R2-000160

Severity Override Guidance

Ensure anonymous-auth argument is set correctly.

Run this command on the RKE2 Control Plane:
/bin/ps -ef | grep kube-apiserver | grep -v grep

If --anonymous-auth is set to "true" or is not configured, this is a finding.

Check Content Reference

M

Target Key

5486