TorrentFlux startpop.php torrent Script Insertion
http://www.stevenroddis.com.au/2006/10/13/torrentflux-startpopphp-torrent-script-insertion/
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