Overleaf is a web-based collaborative LaTeX editor. Overleaf Community Edition and Server Pro prior to version 5.0.7 (or 4.2.7 for the 4.x series) contain a vulnerability that allows an arbitrary language parameter in client spelling requests to be passed to the `aspell` executable running on the server. This causes `aspell` to attempt to load a dictionary file with an arbitrary filename. File access is limited to the scope of the overleaf server. The problem is patched in versions 5.0.7 and 4.2.7. Previous versions can be upgraded using the Overleaf toolkit `bin/upgrade` command. Users unable to upgrade may block POST requests to `/spelling/check` via a Web Application Firewall will prevent access to the vulnerable spell check feature. However, upgrading is advised.
History

Tue, 03 Sep 2024 14:30:00 +0000

Type Values Removed Values Added
First Time appeared Overleaf
Overleaf overleaf
CPEs cpe:2.3:a:overleaf:overleaf:*:*:*:*:*:*:*:*
Vendors & Products Overleaf
Overleaf overleaf
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 02 Sep 2024 17:00:00 +0000

Type Values Removed Values Added
Description Overleaf is a web-based collaborative LaTeX editor. Overleaf Community Edition and Server Pro prior to version 5.0.7 (or 4.2.7 for the 4.x series) contain a vulnerability that allows an arbitrary language parameter in client spelling requests to be passed to the `aspell` executable running on the server. This causes `aspell` to attempt to load a dictionary file with an arbitrary filename. File access is limited to the scope of the overleaf server. The problem is patched in versions 5.0.7 and 4.2.7. Previous versions can be upgraded using the Overleaf toolkit `bin/upgrade` command. Users unable to upgrade may block POST requests to `/spelling/check` via a Web Application Firewall will prevent access to the vulnerable spell check feature. However, upgrading is advised.
Title Arbitrary language parameter can passed to `aspell` executable via spelling requests in overleaf
Weaknesses CWE-22
CWE-641
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2024-09-02T16:50:08.305Z

Updated: 2024-09-03T14:04:59.459Z

Reserved: 2024-08-26T18:25:35.444Z

Link: CVE-2024-45312

cve-icon Vulnrichment

Updated: 2024-09-03T14:04:52.677Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2024-09-02T18:15:37.580

Modified: 2024-09-03T12:59:02.453

Link: CVE-2024-45312

cve-icon Redhat

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