Vulnerability Details : CVE-2023-32317
Autolab is a course management service that enables auto-graded programming assignments. A Tar slip vulnerability was found in the MOSS cheat checker functionality of Autolab. To exploit this vulnerability an authenticated attacker with instructor permissions needs to upload a specially crafted Tar file. Both "Base File Tar" and "Additional file archive" can be fed with Tar files that contain paths outside their target directories (e.g., `../../../../tmp/tarslipped2.sh`). When the MOSS cheat checker is started the files inside of the archives are expanded to the attacker-chosen locations. This issue may lead to arbitrary file write within the scope of the running process. This issue has been addressed in version 2.11.0. Users are advised to upgrade.
Vulnerability category: Directory traversal
Products affected by CVE-2023-32317
- cpe:2.3:a:autolabproject:autolab:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-32317
0.37%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 72 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-32317
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.2
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
1.2
|
5.9
|
NIST | |
6.7
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:H |
1.2
|
5.5
|
GitHub, Inc. |
CWE ids for CVE-2023-32317
-
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.Assigned by:
- nvd@nist.gov (Primary)
- security-advisories@github.com (Secondary)
References for CVE-2023-32317
-
https://github.com/autolab/Autolab/commit/410a9228ee265f80692334d75eb2c3b4dac6f9e5
Merge pull request from GHSA-h8g5-vhm4-wx6g · autolab/Autolab@410a922 · GitHubPatch
-
https://securitylab.github.com/advisories/GHSL-2023-081_GHSL-2023-082_Autolab/
GHSL-2023-081_GHSL-2023-082: Tar Slip vulnerabilities in Autolab - CVE-2023-32676, CVE-2023-32317 | GitHub Security Lab
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https://github.com/autolab/Autolab/security/advisories/GHSA-h8g5-vhm4-wx6g
Tar slip in cheat checker functionality (`GHSL-2023-082`) · Advisory · autolab/Autolab · GitHubVendor Advisory
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