Placement of User into Incorrect Group Affecting conmon package, versions <3:2.1.8-1.module+el8.9.0+19761+326da906
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Test your applications- Snyk ID SNYK-CENTOS8-CONMON-3338378
- published 15 Nov 2023
- disclosed 15 Feb 2023
Introduced: 15 Feb 2023
CVE-2023-25173 Open this link in a new tabHow to fix?
Upgrade Centos:8 conmon to version 3:2.1.8-1.module+el8.9.0+19761+326da906 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream conmon package and not the conmon package as distributed by Centos.
See How to fix? for Centos:8 relevant fixed versions and status.
containerd is an open source container runtime. A bug was found in containerd prior to versions 1.6.18 and 1.5.18 where supplementary groups are not set up properly inside a container. 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. Downstream applications that use the containerd client library may be affected as well.
This bug has been fixed in containerd v1.6.18 and v.1.5.18. Users should update to these versions and recreate containers to resolve this issue. Users who rely on a downstream application that uses containerd's client library should check that application for a separate advisory and instructions. As a workaround, ensure that the "USER $USERNAME" Dockerfile instruction is not used. Instead, set the container entrypoint to a value similar to ENTRYPOINT ["su", "-", "user"] to allow su to properly set up supplementary groups.
References
- https://access.redhat.com/security/cve/CVE-2023-25173
- https://github.com/advisories/GHSA-4wjj-jwc9-2x96
- https://github.com/advisories/GHSA-fjm8-m7m6-2fjp
- https://github.com/advisories/GHSA-phjr-8j92-w5v7
- https://github.com/containerd/containerd/commit/133f6bb6cd827ce35a5fb279c1ead12b9d21460a
- https://github.com/containerd/containerd/releases/tag/v1.5.18
- https://github.com/containerd/containerd/releases/tag/v1.6.18
- https://github.com/containerd/containerd/security/advisories/GHSA-hmfx-3pcx-653p
- https://github.com/moby/moby/security/advisories/GHSA-rc4r-wh2q-q6c4
- https://www.benthamsgaze.org/2022/08/22/vulnerability-in-linux-containers-investigation-and-mitigation/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZTE4ITXXPIWZEQ4HYQCB6N6GZIMWXDAI/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LYZOKMMVX4SIEHPJW3SJUQGMO5YZCPHC/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XNF4OLYZRQE75EB5TW5N42FSXHBXGWFE/