Vulnerability · Published Apr 18, 2024 · Assigned by GitHub_M
CVE-2024-28189Judge0 vulnerable to Sandbox Escape Patch Bypass via chown running on Symbolic Link
Critical 10.0
In plain English
A critical-severity security flaw in judge0 from judge0. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 7.2% (higher than 94% of all known vulnerabilities). Ready-made attack tooling exists: Metasploit.
Official description
Judge0 is an open-source online code execution system. The application uses the UNIX chown command on an untrusted file within the sandbox. An attacker can abuse this by creating a symbolic link (symlink) to a file outside the sandbox, allowing the attacker to run chown on arbitrary files outside of the sandbox. This vulnerability is not impactful on it's own, but it can be used to bypass the patch for CVE-2024-28185 and obtain a complete sandbox escape. This vulnerability is fixed in 1.13.1.
Affected products (as reported)
Weakness: CWE-61, CWE-59 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
References
- https://github.com/judge0/judge0/security/advisories/GHSA-3xpw-36v7-2cmg x_refsource_CONFIRM
- https://github.com/judge0/judge0/security/advisories/GHSA-h9g2-45c8-89cf x_refsource_MISC
- https://github.com/judge0/judge0/commit/f3b8547b3b67863e4ea0ded3adcb963add56addd x_refsource_MISC
- https://github.com/judge0/judge0/blob/v1.13.0/app/jobs/isolate_job.rb#L232 x_refsource_MISC