Apptainer is an open source container platform. Version 1.2.0-rc.2 introduced an ineffective privilege drop when requesting container network setup, therefore subsequent functions are called with root privileges, the attack surface is rather limited for users but an attacker could possibly craft a starter config to delete any directory on the host filesystems. A security fix has been included in Apptainer 1.2.1. There is no known workaround outside of upgrading to Apptainer 1.2.1.
Weakness
The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Apptainer | Lfprojects | 1.2.0 (including) | 1.2.0 (including) |
| Apptainer | Lfprojects | 1.2.0-rc2 (including) | 1.2.0-rc2 (including) |
Potential Mitigations
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/122.html
- https://cwe.mitre.org/data/definitions/233.html
- https://cwe.mitre.org/data/definitions/58.html
References
- https://github.com/apptainer/apptainer/pull/1523
- https://github.com/apptainer/apptainer/pull/1578
- https://github.com/apptainer/apptainer/security/advisories/GHSA-mmx5-32m4-wxvx
- https://github.com/apptainer/apptainer/pull/1523
- https://github.com/apptainer/apptainer/pull/1578
- https://github.com/apptainer/apptainer/security/advisories/GHSA-mmx5-32m4-wxvx