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

Information

Verify that the docker.service file permissions are correctly set to 644 or more restrictive.
Rationale:
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.

Solution

Step 1: Find out the file location:
systemctl show -p FragmentPath docker.service
Step 2: If the file does not exist, this recommendation is not applicable. If the file exists, execute the below command with the correct file path to set the file permissions to 644.
For example,
chmod 644 /usr/lib/systemd/system/docker.service

Impact:
None.
Default Value:
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.

See Also

https://workbench.cisecurity.org/files/1726

Item Details

Category: CONFIGURATION MANAGEMENT

References: 800-53|CM-6b., CSCv6|14.4

Plugin: Unix

Control ID: bad9e091eebae17d1b727f309c11e307bf9cc9aa8e2a5b6e9708e426a9070f70