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The Kubernetes kubelet service must have file permissions set to 644 or more restrictive.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-242455 | CNTR-K8-003220 | SV-242455r712721_rule | Medium |
| Description |
|---|
| The Kubernetes kubeadm.conf contains sensitive information regarding the cluster nodes configuration. If this file can be modified, the Kubernetes Platform Plane would be degraded or compromised for malicious intent. Many of the security settings within the document are implemented through this file. |
| STIG | Date |
|---|---|
| Kubernetes Security Technical Implementation Guide | 2021-04-14 |
Details
| Check Text ( C-45730r712719_chk ) |
|---|
| Review the permissions of the Kubernetes kubelet by using the command: stat -c %a /usr/bin/kubeadm If any of the files have permissions more permissive than "644", this is a finding. |
| Fix Text (F-45688r712720_fix) |
|---|
| Change the permissions of Kubeadm to "644" by executing the command: chown 644 /usr/bin/kubeadm |