The Kubernetes admin kubeconfig must have file permissions set to 644 or more restrictive.
An XCCDF Rule
Description
<VulnDiscussion>The Kubernetes admin kubeconfig files contain the arguments and settings for the Control Plane services. These services are controller and scheduler. If these files can be changed, the scheduler will be implementing the changes immediately.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-242460r927262_rule
- Severity
- Medium
- References
- Updated
Remediation - Manual Procedure
Change the permissions of the conf files to "644" by executing the command:
chmod 644 /etc/kubernetes/admin.conf
chmod 644 /etc/kubernetes/scheduler.conf
chmod 644 /etc/kubernetes/controller-manager.conf