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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::Auxiliary
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  # Exploit mixins should be called first
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  include Msf::Exploit::Remote::HttpClient
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  include Msf::Auxiliary::Report
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  def initialize
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    super(
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      'Name'        	=> 'Discover External IP via Ifconfig.me',
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      'Description'	=> %q{
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        This module checks for the public source IP address of the current
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        route to the RHOST by querying the public web application at ifconfig.me.
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        It should be noted this module will register activity on ifconfig.me,
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        which is not affiliated with Metasploit.
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      },
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      'Author'        => ['RageLtMan <rageltman[at]sempervictus>'],
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      'License'	=> MSF_LICENSE,
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      'References'	=>
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        [
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          [ 'URL', 'http://ifconfig.me/ip' ],
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        ],
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      'DefaultOptions' => { 'VHOST' => 'ifconfig.me' }
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    )
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    register_options(
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      [
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        Opt::RHOST('ifconfig.me'),
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        OptBool.new('REPORT_HOST', [false, 'Add the found IP to the database', false])
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      ])
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end
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  def run
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    connect
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    res = send_request_cgi({'uri' => '/ip', 'method' => 'GET' })
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    if res.nil?
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      print_error("Connection timed out")
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      return
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    end
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    our_addr = res.body.strip
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    if Rex::Socket.is_ipv4?(our_addr) or Rex::Socket.is_ipv6?(our_addr)
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      print_good("Source ip to #{rhost} is #{our_addr}")
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      report_host(our_addr) if datastore['REPORT_HOST']
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    end
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  end
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end
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