References to Advisories, Solutions, and Tools

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Change History

GitHub, Inc. AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

GitHub, Inc. CWE-59

GitHub, Inc. CWE-61

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` writin

GitHub, Inc. https://github.com/judge0/judge0/blob/v1.13.0/app/jobs/isolate_job.rb#L197-L201 [No types assigned]

GitHub, Inc. https://github.com/judge0/judge0/commit/846d5839026161bb299b7a35fd3b2afb107992fc [No types assigned]

GitHub, Inc. https://github.com/judge0/judge0/security/advisories/GHSA-h9g2-45c8-89cf [No types assigned]