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 file disclosure vulnerability was discovered in Autolab's remote handin feature, whereby users are able to hand-in assignments using paths outside their submission directory. Users can then view the submission to view the file's contents. The vulnerability has been patched in version 2.10.0. As a workaround, ensure that the field for the remote handin feature is empty (Edit Assessment > Advanced > Remote handin path), and that you are not running Autolab as `root` (or any user that has write access to `/`). Alternatively, disable the remote handin feature if it is unneeded by replacing the body of `local_submit` in `app/controllers/assessment/handin.rb` with `render(plain: "Feature disabled", status: :bad_request) && return`.
References
Link | Resource |
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https://github.com/autolab/Autolab/security/advisories/GHSA-g7x7-mgrv-f24x | Third Party Advisory |
https://securitylab.github.com/advisories/GHSL-2022-100_Autolab/ | |
https://www.stackhawk.com/blog/rails-path-traversal-guide-examples-and-prevention/ | Third Party Advisory |
Configurations
History
11 Dec 2023, 19:15
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Information
Published : 2023-01-14 01:15
Updated : 2024-02-28 19:51
NVD link : CVE-2022-41956
Mitre link : CVE-2022-41956
CVE.ORG link : CVE-2022-41956
JSON object : View
Products Affected
autolabproject
- autolab
CWE
CWE-22
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')