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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

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

http://localhost/forums/index.php?act=Members&max_results=30&filter=1&so
rt_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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