Autolab up to 2.9.x on Carnegie courses_controller.rb run_moss os command injection

Summaryinfo

A vulnerability classified as critical was found in Autolab up to 2.9.x on Carnegie. This affects an unknown function of the file app/controllers/courses_controller.rb. The manipulation of the argument run_moss results in os command injection. This vulnerability was named CVE-2022-41955. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical has been found in Autolab up to 2.9.x on Carnegie. Affected is an unknown function of the file app/controllers/courses_controller.rb. The manipulation of the argument run_moss with an unknown input leads to a os command injection vulnerability. CWE is classifying the issue as CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

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`.

The weakness was presented 01/14/2023 as GHSA-x5r3-vf3p-3269. The advisory is available at github.com. This vulnerability is traded as CVE-2022-41955 since 09/30/2022. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1202 by the MITRE ATT&CK project.

Upgrading to version 2.10.0 eliminates this vulnerability.

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Productinfo

Name

• Autolab

Version

• 2.0
• 2.1
• 2.2
• 2.3
• 2.4
• 2.5
• 2.6
• 2.7
• 2.8
• 2.9

Website

• Product: https://github.com/autolab/Autolab/

CPE 2.3info

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CPE 2.2info

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