Some vulnerabilities have been discovered in LetoDMS, which can be exploited by malicious users and malicious people to disclose sensitive information and by malicious people to conduct cross-site request forgery attacks.
1) Input passed to the "lang" parameter in op/op.Login.php is not properly verified before being used to include files. This can be exploited to include arbitrary files from local resources via directory traversal attacks and URL-encoded NULL bytes.
2) The application allows users to perform certain actions via HTTP requests without performing any validity checks to verify the requests. This can be exploited to e.g. change user details, delete users, delete documents, delete folders, add arbitrary categories, add arbitrary groups, change folder access permissions, change notify list for folders, or move folders by tricking a logged in user into visiting a malicious web site.
The vulnerabilities are confirmed in version 1.7.2. Other versions may also be affected.
Solution: Edit the source code to ensure that input is properly verified. Do not browse untrusted websites or follow untrusted links while logged in to the application.
Provided and/or discovered by: D. Fabian and L. Weichselbaum, SEC Consult
Original Advisory: https://www.sec-consult.com/files/20100115-0_mydms_file_inclusion.txt
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Subject: LetoDMS Local File Inclusion and Cross-Site Request Forgery Vulnerabilities
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