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Invision board 1.3.1 and below are vulnerable to a sql injection vuln [dcrab]



Invision board 1.3.1 and below are vulnerable to a sql injection vulnerability [PATCH INCLUDED]



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Dcrab 's Security Advisory (http://www.digitalparadox.org/services.ah) 
[Hsc Security Group] http://www.hackerscenter.com/ 
[dP Security] http://digitalparadox.org/ 

Severity: Medium
Title: Invision board 1.3.1 and below are vulnerable to a sql injection vulnerability [PATCH INCLUDED]
Date: 09/04/2005

Vendor: Invision Invision Power Services
Vendor Website: http://www.invisionboard.com/ 
Summary: Invision board  1.3.1 and lower are vulnerable to a sql injection vulnerability which is caused by the non validation of input in the $this->first variable


**********************************************************************************************************
Get Dcrab's Services to audit your Web servers, scripts, networks, etc. Learn more at http://www.digitalparadox.org/services.ah 
**********************************************************************************************************

Proof of Concept Exploit: 

http://localhost/forums/index.php?act=Members&max_results=30&filter =1&sort_order=asc&sort_key=name&st=SQL_INJECTION

**************
Patch info
**************
A patched version of the vulnerable file can be found at, http://www.digitalparadox.org/memberlist.txt 
Just replace /uploads/sources/memberlist.php with this, and it will be fixed.

A simple patch can be,

In /uploads/sources/memberlist.php on Line 274 add this code 
                                   [CODE BEGINS]

                          if (!is_numeric($this->first)) {
                          $this->first = "0";
                          }

                                      [CODE ENDS]

So it should finally look like,
                                   [CODE BEGINS]

                $this->output .= $this->html->Page_header( array( 'SHOW_PAGES' => $links) );

                //-----------------------------
                // START THE LISTING
                //-----------------------------
                          if (!is_numeric($this->first)) {
                          $this->first = "0";
                          }

                $DB->query("SELECT m.name, m.id, m.posts, m.joined, m.mgroup, m.email,m.title, m.hide_email, m.location, m.aim_name, m.icq_number,
                                   me.photo_location, me.photo_type, me.photo_dimensions

                                      [CODE ENDS]


Keep your self updated, Rss feed at: http://digitalparadox.org/rss.ah 

Author: 
These vulnerabilties have been found and released by Diabolic Crab, Email: dcrab[AT|NOSPAM]hackerscenter[DOT|NOSPAM]com, please feel free to contact me regarding these vulnerabilities. You can find me at, http://www.hackerscenter.com or http://digitalparadox.org/. Lookout for my soon to come out book on Secure coding with php.


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