CVE-2024-28185
Judge0 is an open-source online code execution system.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (7.06%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Judge0 is an open-source online code execution system. The application does not account for symlinks placed inside the sandbox directory, which can be leveraged by an attacker to write to arbitrary files and gain code execution outside of the sandbox. When executing a submission, Judge0 writes a `run_script` to the sandbox directory. The security issue is that an attacker can create a symbolic link (symlink) at the path `run_script` before this code is executed, resulting in the `f.write` writing to an arbitrary file on the unsandboxed system. An attacker can leverage this vulnerability to overwrite scripts on the system and gain code execution outside of the sandbox.
- CVSS 3.1
- 10.0 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- EPSS
- 7.06% probability · 94th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-59, CWE-61
- Source
- security-advisories@github.com
References
- https://github.com/judge0/judge0/blob/v1.13.0/app/jobs/isolate_job.rb#L197-L201
- https://github.com/judge0/judge0/commit/846d5839026161bb299b7a35fd3b2afb107992fc
- https://github.com/judge0/judge0/security/advisories/GHSA-h9g2-45c8-89cf
- https://github.com/judge0/judge0/blob/v1.13.0/app/jobs/isolate_job.rb#L197-L201
- https://github.com/judge0/judge0/commit/846d5839026161bb299b7a35fd3b2afb107992fc
- https://github.com/judge0/judge0/security/advisories/GHSA-h9g2-45c8-89cf
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.