Vulnerability · Published Jan 14, 2023 · Assigned by GitHub_M

CVE-2022-41955Autolab is vulnerable to remote code execution (RCE) via MOSS functionality

High 8.8

In plain English

A high-severity OS command injection in Autolab from autolab. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.6% (higher than 75% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)1.6%top 24.7% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

Autolab is a course management service, initially developed by a team of students at Carnegie Mellon University, that enables instructors to offer autograded programming assignments to their students over the Web. A remote code execution vulnerability was discovered in Autolab's MOSS functionality, whereby an instructor with access to the feature might be able to execute code on the server hosting Autolab. This vulnerability has been patched in version 2.10.0. As a workaround, disable the MOSS feature if it is unneeded by replacing the body of `run_moss` in `app/controllers/courses_controller.rb` with `render(plain: "Feature disabled", status: :bad_request) && return`.

Affected products (as reported)

Vendor	Product	Versions
autolab	Autolab	>= 2.0.1, <= 2.9.0

Weakness: CWE-78 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

https://github.com/autolab/Autolab/security/advisories/GHSA-x5r3-vf3p-3269 x_refsource_CONFIRM
https://securitylab.github.com/advisories/GHSL-2022-100_Autolab/ x_refsource_MISC