Xst3nZ has discovered a vulnerability in MySpeach, which can be exploited by malicious people to compromise a vulnerable system or to disclose sensitive information.
Input passed in the "my_ms[root]" cookie to chat.php is not properly verified before being used to include files. This can be exploited to include arbitrary files from local or external resources.
Successful exploitation from external resources (FTP servers) requires that "register_globals" and "allow_url_include" is enabled, and that the system is running PHP 5. Successful exploitation from local resources requires that "register_globals" is enabled and "magic_quotes_gpc" is disabled.
The vulnerability is confirmed in version 3.0.7. Other versions may also be affected.
Solution: Edit the source code to ensure that input is properly verified.
Provided and/or discovered by: Xst3nZ
Original Advisory: http://milw0rm.com/exploits/3657
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