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

Kubernetes DynamicKubeletConfig must not be enabled.

DISA Rule

SV-242399r1137639_rule

Vulnerability Number

V-242399

Group Title

SRG-APP-000033-CTR-000095

Rule Version

CNTR-K8-000460

Severity

CAT II

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

This fix is only applicable to Kubernetes version 1.25 and older.

On the Control Plane, change to the manifests' directory at /etc/kubernetes/manifests and run the command:
grep -i feature-gates *

Edit the manifest files so that every manifest has a "--feature-gates" setting with "DynamicKubeletConfig=false".

On each Control Plane and Worker Node, run the command:
ps -ef | grep kubelet

Remove the "feature-gates" option if present.

Note the path to the config file (identified by --config).

Edit the config file:
Add a "featureGates" setting if one does not yet exist. Add the feature gate "DynamicKubeletConfig=false".

Restart the kubelet service using the following command:
systemctl daemon-reload && systemctl restart kubelet

Check Contents

This check is only applicable for Kubernetes versions 1.25 and older.

On the Control Plane, change to the manifests' directory at /etc/kubernetes/manifests and run the command:
grep -i feature-gates *

In each manifest file, if the feature-gates does not exist, or does not contain the "DynamicKubeletConfig" flag, or sets the flag to "true", this is a finding.

On each Control Plane and Worker node, run the command:
ps -ef | grep kubelet

Verify the "feature-gates" option is not present.

Note the path to the config file (identified by --config).

Inspect the content of the config file:
If the "featureGates" setting is not present, or does not contain the "DynamicKubeletConfig", or sets the flag to "true", this is a finding.

Vulnerability Number

V-242399

Documentable

False

Rule Version

CNTR-K8-000460

Severity Override Guidance

This check is only applicable for Kubernetes versions 1.25 and older.

On the Control Plane, change to the manifests' directory at /etc/kubernetes/manifests and run the command:
grep -i feature-gates *

In each manifest file, if the feature-gates does not exist, or does not contain the "DynamicKubeletConfig" flag, or sets the flag to "true", this is a finding.

On each Control Plane and Worker node, run the command:
ps -ef | grep kubelet

Verify the "feature-gates" option is not present.

Note the path to the config file (identified by --config).

Inspect the content of the config file:
If the "featureGates" setting is not present, or does not contain the "DynamicKubeletConfig", or sets the flag to "true", this is a finding.

Check Content Reference

M

Target Key

5376