Secunia

Some vulnerabilities have been discovered in PHP Upload Tool, which can be exploited by malicious users to gain system access or by malicious people to expose sensitive information.

1) The bin/main_user.php script fails to validate the extension of an uploaded file. This can be exploited to upload files with arbitrary extensions (e.g. ".php") and execute arbitrary PHP code on the server.

Successful exploitation requires valid user credentials.

2) Input passed to the "filename" parameter in bin/download.php is not properly sanitised before being used to download files.

Successful exploitation allows for downloading of arbitrary files on the system, e.g. "/etc/passwd" or "conf/users.conf" (the product's usernames and password hashes).

The vulnerabilities are confirmed in version 1.0. Other versions may also be affected.

Solution
Edit the source code to ensure that input is properly verified and sanitised.
Further details available in Customer Area

Provided and/or discovered by
Craig Heffner and an anonymous person

Changelog
Further details available in Customer Area

Original Advisory
2) http://www.craigheffner.com/security/exploits/upload_tool_php.txt

Deep Links
Links available in Customer Area