Vulnerability Information
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Vulnerability Title
Arbitrary language parameter can passed to `aspell` executable via spelling requests in overleaf
Vulnerability 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.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Vulnerability Type
文件和其他资源名称限制不恰当
Vulnerability Title
Overleaf 安全漏洞
Vulnerability Description
Overleaf是Overleaf开源的一个开源的在线实时协作 LaTeX 编辑器。 Overleaf存在安全漏洞。攻击者利用该漏洞可以加载具有任意文件名的词典文件。
CVSS Information
N/A
Vulnerability Type
N/A