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Category:   Application (Commerce)  >   JShop Vendors:   Whorl Limited
JShop Input Validation Hole in 'search.php' Permits Cross-Site Scripting Attacks
SecurityTracker Alert ID:  1008988
SecurityTracker URL:  http://securitytracker.com/id/1008988
CVE Reference:   GENERIC-MAP-NOMATCH   (Links to External Site)
Date:  Feb 9 2004
Impact:   Disclosure of authentication information, Disclosure of user information, Execution of arbitrary code via network, Modification of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  

Description:   David Sopas Ferreira of SystemSecure.org reported an input validation vulnerability in JShop. A remote user can conduct cross-site scripting attacks.

It is reported that the 'search.php' script does not filter HTML code from user-supplied input in the 'xSearch' parameter before displaying the information. A remote user can create a specially crafted URL that, when loaded by a target user, will cause arbitrary scripting code to be executed by the target user's browser. The code will originate from the site running the JShop software and will run in the security context of that site. As a result, the code will be able to access the target user's cookies (including authentication cookies), if any, associated with the site, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.

A demonstration exploit example is provided:

search.php?xSearch=%3Cscript%3Ealert%28document.domain%29%3B%3C%2Fscrip%3E&submit=Search

The original advisory is available at:

http://www.systemsecure.org/advisories/ssadvisory09022004.php

Impact:   A remote user can access the target user's cookies (including authentication cookies), if any, associated with the site running the JShop software, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.
Solution:   The vendor has reportedly fixed the flaw.
Vendor URL:  jshop.co.uk/products_jss.php (Links to External Site)
Cause:   Input validation error
Underlying OS:   Linux (Any), UNIX (Any), Windows (Any)

Message History:   None.


 Source Message Contents

Date:  09 Feb 2004 13:55:07 +0500
Subject:  JShop E-Commerce Vulnerability


*SystemSecure.org Advisory*

Date: 07-02-2004
Software: JShop E-Commerce
Vendor: Warned and fixed the problem
Website: http://jshop.co.uk

This  PHP/MySQL based E-Commerce system, suffers from a XSS attack
in "xSearch" variable. This can be exploited by including arbitrary HTML
or script code in the parameter, which will cause it to be executed in a
user's browser session when viewed.

Attack example:
search.php?xSearch=%3Cscript%3Ealert%28document.domain%29%3B%3C%2Fscrip%3E&submit=Search

Solution:
Filter out the variable for tags and for other special chars.

Discovered by David Sopas Ferreira
iamroot@systemsecure.org


Original advisory:
http://www.systemsecure.org/advisories/ssadvisory09022004.php


-----
David Sopas Ferreira
CEO at SystemSecure.org
ceo@systemsecure.org
Figueira da Foz, Portugal



 
 


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