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The Kubernetes component etcd must be owned by etcd.


Finding ID Version Rule ID IA Controls Severity
V-242445 CNTR-K8-003120 SV-242445r864017_rule Medium
The Kubernetes etcd key-value store provides a way to store data to the Control Plane. If these files can be changed, data to API object and the Control Plane would be compromised. The scheduler will implement the changes immediately. Many of the security settings within the document are implemented through this file.
Kubernetes Security Technical Implementation Guide 2022-12-02


Check Text ( C-45720r712689_chk )
Review the ownership of the Kubernetes etcd files by using the command:

stat -c %U:%G /var/lib/etcd/* | grep -v etcd:etcd

If the command returns any non etcd:etcd file permissions, this is a finding.
Fix Text (F-45678r712690_fix)
Change the ownership of the manifest files to etcd:etcd by executing the command:

chown etcd:etcd /var/lib/etcd/*