Path Traversal in Autolab
CVE-2023-32676
Autolab is a course management service that enables auto-graded programming assignments. A Tar slip vulnerability was found in the Install assessment functionality of Autolab. To exploit this vulnerability an authenticated attacker with instructor permissions needs to upload a specially crafted Tar file. Using the install assessment functionality an attacker can feed a Tar file that contain files with paths pointing outside of the target directory (e.g., `../../../../tmp/tarslipped1.sh`). When the Install assessment form is submitted the files inside of the archives are expanded to the attacker-chosen locations. This issue has been addressed in version 2.11.0. Users are advised to upgrade.
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.009 (56.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:H.
Affected products
- Autolab — versions < 2.11.0
- Autolabproject Autolab
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2023-32676?
- CVE-2023-32676 is a medium-severity vulnerability in Autolab, classified under Path Traversal. CVSS score: 6.7/10. Published 2023-05-26.
- How severe is CVE-2023-32676?
- Medium severity. CVSS v3 base score is 6.7 out of 10.