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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::Exploit::Remote::DB2
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  include Msf::Auxiliary::Scanner
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  include Msf::Auxiliary::Report
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  def initialize
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    super(
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      'Name'           => 'DB2 Probe Utility',
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      'Description'    => 'This module queries a DB2 instance information.',
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      'Author'         => ['todb'],
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      'License'        => MSF_LICENSE
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    )
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    register_options(
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      [
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        OptInt.new('TIMEOUT', [true, 'Timeout for the DB2 probe', 5])
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    ])
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    deregister_options('USERNAME' , 'PASSWORD')
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  end
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  def to
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    return 5 if datastore['TIMEOUT'].to_i.zero?
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    datastore['TIMEOUT'].to_i
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  end
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  def run_host(ip)
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    begin
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      info = db2_probe(to)
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      if info[:excsatrd]
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        inst,plat,ver,pta = info[:instance_name],info[:platform],info[:version],info[:plaintext_auth]
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        report_info = "Platform: #{plat}, Version: #{ver}, Instance: #{inst}, Plain-Authentication: #{pta ? "OK" : "NO"}"
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        print_good("#{ip}:#{rport} DB2 - #{report_info}")
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        report_service(
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          :host => rhost,
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          :port => rport,
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          :name => "db2",
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          :info => report_info
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        )
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      end
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      disconnect
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    rescue ::Rex::ConnectionRefused
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      vprint_error("#{rhost}:#{rport} : Cannot connect to host")
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      return :done
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    rescue ::Rex::ConnectionError
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      vprint_error("#{rhost}:#{rport} : Unable to attempt probe")
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      return :done
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    rescue ::Rex::Proto::DRDA::RespError => e
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      vprint_error("#{rhost}:#{rport} : Error in connecting to DB2 instance: #{e}")
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      return :error
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    end
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  end
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end
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