The controller-manager.conf file should be owned by root:root
Set up the kubernetes integration.
Description
Ensure that the controller-manager.conf file ownership is set to root:root.
Rationale
The controller-manager.conf file is the kubeconfig file for the Controller Manager. You should set its file ownership to maintain the integrity of the file. The file should be owned by root:root.
Audit
Run the below command (based on the file location on your system) on the master node.
stat -c %U:%G /etc/kubernetes/controller-manager.conf
Verify the ownership is set to root:root.
Run the below command (based on the file location on your system) on the master node. For example, chown root:root /etc/kubernetes/controller-manager.conf
Impact
None
Default value
By default, controller-manager.conf file ownership is set to root:root.
References
- https://kubernetes.io/docs/admin/kube-controller-manager/
CIS controls
Version 6
5.1 Minimize And Sparingly Use Administrative Privileges - Minimize administrative privileges and only use administrative accounts when they are required. Implement focused auditing on the use of administrative privileged functions and monitor for anomalous behavior.
Version 7
5.2 Maintain Secure Images Maintain secure images or templates for all systems in the enterprise based on the organization’s approved configuration standards. Any new system deployment or existing system that becomes compromised should be imaged using one of those images or templates.
