TMA-DOCKER-5.24
Ensure that docker exec commands are not used with the user=root option
Description
You should not use docker exec with the --user=root option. Using the --user=root option in a docker exec command, executes it within the container as the root user. This could potentially be insecure, particularly when you are running containers with reduced capabilities or ... Reported as a manual review item: the audit needs a site-specific judgement.
How it is checked
Audit method: Manual review
This recommendation cannot be checked automatically. A scan lists it with these instructions when you pass --include-manual.
If you have auditing enabled as recommended in Section 1, you can use the command below to filter out docker exec commands that use the --user=root option. ausearch -k docker | grep exec | grep user Expected state: You should not use the --user=root option in docker exec commands.
How it is fixed
Fix method: Guidance or infrastructure patch
You should not use the --user=root option in docker exec commands.
Properties
- Operating systems
- Any
- Tags
- dockermanual
- Reference
- CIS Docker Benchmark v1.9.0 - 5.24 Ensure that docker exec commands are not used with the user=root option