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V-235852

CAT II (Medium)

Docker Enterprise docker.service file permissions must be set to 644 or more restrictive.

Rule ID

SV-235852r961863_rule

STIG

Docker Enterprise 2.x Linux/UNIX Security Technical Implementation Guide

Version

V2R2

CCIs

CCI-000366

Discussion

Verify that the docker.service file permissions are correctly set to 644 or more restrictive. docker.service file contains sensitive parameters that may alter the behavior of Docker daemon. Hence, it should not be writable by any other user other than root to maintain the integrity of the file. This file may not be present on the system. In that case, this recommendation is not applicable. By default, if the file is present, the file permissions are correctly set to 644.

Check Content

Ensure that docker.service file permissions are set to 644 or more restrictive.

Step 1: Find out the file location:

systemctl show -p FragmentPath docker.service

Step 2: If the file does not exist, this is not a finding. 

If the file exists, execute the below command with the correct file path to verify that the file permissions are set to 644 or more restrictive.

stat -c %a /usr/lib/systemd/system/docker.service

If the file permissions are not set to 644 or a more restrictive permission, this is a finding.

Fix Text

Step 1: Find out the file location:

systemctl show -p FragmentPath docker.service

Step 2: If the file exists, execute the below command with the correct file path to set the file permissions to 644.

Example:
chmod 644 /usr/lib/systemd/system/docker.service