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PHP Open Chat 3.0.2 Cross Site Scripting

PHP Open Chat 3.0.2 Cross Site Scripting
Posted Dec 22, 2009
Authored by Dedalo | Site seguridadblanca.org

PHP Open Chat version 3.0.2 suffers from cross site scripting and path disclosure vulnerabilities.

tags | exploit, php, vulnerability, xss
SHA-256 | a18ffcbe95654f91433ac8f45e14488044e54c4265e15009d3b535d2c2edd03e

PHP Open Chat 3.0.2 Cross Site Scripting

Change Mirror Download
PHPOPENCHAT 3.0.2 Xss AND/OR Full Path Disclosure

1.- Preview

This web APP is Vulnerable to xss in its instalation file but you can
misconfigurate all the
code with this bug also, you must see to understand...


2.- Vulnerable Code

function database_setup(){


if( isset($_POST['form_data']) ){

$host = (string) $_POST['DATABASE_HOST'];

$user = (string) $_POST['DATABASE_USER'];

$pass = (string) $_POST['DATABASE_PASSWORD'];

$tabl = (string) $_POST['DATABASE_TABLESPACE'];

$prefix = (string) $_POST['DATABASE_TABLE_PREFIX'];





3.- Expl0tation
First Bug its where you just post data without nothing in security so
you can put in the
host textbox on the install.php?step=2 ">
in which usually
is written localhost and in other .php files (install.php) they show
$host so the Xss its
notable...


4.- More Vuln Code...


$this->set_conf_property('DATABASE_HOST', $host);


you may think theres no problem with this step but...
if you write the DATABSE_HOST with host being explotated it could
be...interesting...


5.- MORE

define('DATABASE_HOST', 'localhost');


This is the execelent example to show you how it can work like a PHP DROP...

just put something like "> in the
DATABASE_HOST textbox

and excecute, just refresh and...

Path Disclosure...

\openchat\config.inc.php on line 135

6.- Gr33tz:

http://www.seguridadblanca.org - WCuestas - Chelano - Perverths0 -
SeguridadBlanca READERS
- Exploit-DB && FRIENDS =)


====================
31337 HAPPY HACKING
====================
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