CVE-2022-36109

CVE-2022-36109 · Moby vulnerability relating to supplementary group permissions

This page contains facts from public vulnerability sources. Check the original advisory before updating.

Moby is an open-source project created by Docker to enable software containerization. A bug was found in Moby (Docker Engine) where supplementary groups are not set up properly. If an attacker has direct access to a container and manipulates their supplementary group access, they may be able to use supplementary group access to bypass primary group restrictions in some cases, potentially gaining access to sensitive information or gaining the ability to execute code in that container. This bug is fixed in Moby (Docker Engine) 20.10.18. Running containers should be stopped and restarted for the permissions to be fixed. For users unable to upgrade, this problem can be worked around by not using the `"USER $USERNAME"` Dockerfile instruction. Instead by calling `ENTRYPOINT ["su", "-", "user"]` the supplementary groups will be set up properly.

CVSS 5.3 · Medium · EPSS 1.0% · Fix available

Published

2022-09-09T17:20:11.000Z

Updated

2025-04-23T17:12:31.122Z

Stack: system · containers

Check your server →