The Kubernetes manifests must be owned by root.
An XCCDF Rule
Description
<VulnDiscussion>The manifest files contain the runtime configuration of the API server, proxy, scheduler, controller, and etcd. If an attacker can gain access to these files, changes can be made to open vulnerabilities and bypass user authorizations inherit within Kubernetes with RBAC implemented.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-242405r879586_rule
- Severity
- Medium
- References
- Updated
Remediation - Manual Procedure
On the Control Plane, change to the /etc/kubernetes/manifest directory. Run the command:
chown root:root *
To verify the change took place, run the command:
ls -l *