TITLE:
TorrentFlux “startpop.php” “torrent” Script Insertion
CRITICAL:
Not Critical
IMPACT:
Cross Site Scripting
WHERE:
From remote
SOFTWARE:
TorrentFlux 2.x
DESCRIPTION:
I have discovered a vulnerability in TorrentFlux, which can be exploited by malicious users to conduct script insertion attacks.
Input passed to the “torrent” field of a GET Request (/startpop.php?torrent=%22%3E%3Cscript%3Ealert(document.cookies);%3C/script%3E.torrent) is not properly sanitised before being used. This can be exploited to insert arbitrary HTML and script code, which will be executed in an user’s browser session in context of an affected site if a user clicks on a malicious link.
The vulnerability has been confirmed in version 2.1. Other versions may also be affected.
SOLUTION:
Edit the source code to ensure that input is properly sanitised.
/startpop.php
Line 36: Change to: $displayName = htmlentities($displayName, ENT_QUOTES);
(Line 36 is normally empty)
Grant only trusted users access to the application
ORIGINAL ADVISORY:
http://www.stevenroddis.com.au/2006/10/13/torrentflux-startpopphp-torrent-script-insertion/Note to author:
I am guessing your /contact.php script dosn't work anymore, if you would like me to contact you prior to releasing an advisory please PM me with your email.
Author