Details
Ensure that the etcd data directory ownership is set to etcd:etcd.
Rationale:
etcd is a highly-available key-value store used by Kubernetes deployments for persistent storage of all of its REST API objects. This data directory should be protected from any unauthorized reads or writes. It should be owned by etcd:etcd.
Impact:
None
Solution
On the etcd server node, get the etcd data directory, passed as an argument –data-dir, from the below command:
ps -ef | grep etcd
Run the below command (based on the etcd data directory found above). For example,
chown etcd:etcd /var/lib/etcd
Default Value:
By default, etcd data directory ownership is set to etcd:etcd.
Supportive Information
The following resource is also helpful.
This security hardening control applies to the following category of controls within NIST 800-53: Configuration Management.This control applies to the following type of system Unix.