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V-235868

CAT I (High)

Docker Enterprise daemon.json file permissions must be set to 644 or more restrictive.

Rule ID

SV-235868r961863_rule

STIG

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

Version

V2R2

CCIs

CCI-000366

Discussion

Verify that the daemon.json file permissions are correctly set to 644 or more restrictive. daemon.json file contains sensitive parameters that may alter the behavior of docker daemon. Hence, it should be writable only by 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.

Check Content

The docker.daemon file is not created on installation and must be created. Ensure that daemon.json file permissions are set to 644 or more restrictive.

Execute the below command to verify that the file permissions are correctly set to 644 or more restrictive:

stat -c %a /etc/docker/daemon.json

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

If the permissions are not set to 644, this is a finding.

Fix Text

If docker.daemon does not exist, create the file and set the file permissions for this file to 644.

Run the following command;
chmod 644 /etc/docker/daemon.json