CVE-2024-28185 (CVSS 10)

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.

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CVSS v3.1 Score

10.0

CRITICAL

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

Weakness Type (CWE)

CWE-59 CWE-59

CWE-61 CWE-61

References

Other 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

Frequently Asked Questions

What is CVE-2024-28185? +

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. It has a CVSS v3.1 base score of 10.0 (CRITICAL).

How severe is CVE-2024-28185? +

CVE-2024-28185 has a CVSS v3.1 score of 10.0 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

How do I check if I'm vulnerable to CVE-2024-28185? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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