CVE-2022-36109

 

Published at: - 09-09-2022 08:15

Last modified: - 15-09-2022 05:44

Total changes: - 3

Description

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.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

 

Verification logic

 

Reference

• https://github.com/moby/moby/security/advisories/GHSA-rc4r-wh2q-q6c4
• https://github.com/moby/moby/commit/de7af816e76a7fd3fbf06bffa6832959289fba32
• https://github.com/moby/moby/releases/tag/v20.10.18
• FEDORA-2022-b027a13a39-Third Party Advisory

 

Keywords

NVD

 

CVE-2022-36109

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures