bugtraq - Re: Multiple Vulnerabilities in Invision Power Board v1.3.1 Final.

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Date: 11 Jun 2004 15:53:13 -0000
From: Hillel Himovich <hll@...vision.net.il>
To: bugtraq@...urityfocus.com
Subject: Re: Multiple Vulnerabilities in Invision Power Board v1.3.1 Final.

In-Reply-To: <000d01c44d68$51a14ec0$05a0968c@...800mhz>

>Compromise:  SQL Injection, Cross site Scripting.
>Vulnerable Systems: Invision Power Board v1.3.1 Final.
>Details:
>An Input Validation Error exists in ssi.php.
>
>$sql_fields is vulnerable to An Input Validation Error.
>How to exploit this bug?
>http://TARGET/ssi.php?a=out&type=xml&f=0)[SQL-INJECTION]

I guss, you are reffering this line in the SQL Statment...
WHERE t.forum_id IN ($sql_fields)
I downloaded IPB 1.3.1 F and digiid for a fwe seconds, if you look a bit up in the code u'll see:

$f = intval($f);
	if ( $f )
		{
			$forums[] = $f;
		}
...........
...........
$sql_fields = implode( ",", $forums );

intval, means that u can't enter string in the f field...