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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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  include Msf::Auxiliary::Report
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  include Msf::Auxiliary::Scanner
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  include Msf::Exploit::Remote::Udp
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  def initialize
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    super(
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      'Name'           => 'DB2 Discovery Service Detection',
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      'Description'    => 'This module simply queries the DB2 discovery service for information.',
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      'Author'         => [ 'MC' ],
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      'License'        => MSF_LICENSE
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    )
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    register_options([Opt::RPORT(523),])
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  end
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  def run_host(ip)
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    pkt = "DB2GETADDR" + "\x00" + "SQL05000" + "\x00"
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    begin
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      connect_udp
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      udp_sock.put(pkt)
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      res = udp_sock.read(1024)
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      unless res
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        print_error("Unable to determine version info for #{ip}")
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        return
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      end
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      res = res.split(/\x00/)
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      report_note(
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        :host   => ip,
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        :proto  => 'udp',
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        :port   => datastore['RPORT'],
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        :type   => 'SERVICE_INFO',
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        :data   => "#{res[2]}_#{res[1]}"
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        )
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      report_service(
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        :host => ip,
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        :port => datastore['RPORT'],
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        :proto => 'udp',
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        :name => "ibm-db2",
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        :info => "#{res[2]}_#{res[1]}"
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      )
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      print_good("Host #{ip} node name is " + res[2] + " with a product id of " + res[1] )
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    rescue ::Rex::ConnectionError
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    rescue ::Errno::EPIPE
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    ensure
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      disconnect_udp
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    end
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  end
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end
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