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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::TNS
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  def initialize(info = {})
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    super(
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      update_info(
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        info,
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        'Name' => 'Oracle TNS Listener Service Version Query',
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        'Description' => %q{
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          This module simply queries the tnslsnr service for the Oracle build.
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        },
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        'Author' => ['CG'],
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        'License' => MSF_LICENSE,
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        'DisclosureDate' => '2009-01-07',
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        'Notes' => {
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          'Reliability' => UNKNOWN_RELIABILITY,
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          'Stability' => UNKNOWN_STABILITY,
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          'SideEffects' => UNKNOWN_SIDE_EFFECTS
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        }
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      )
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    )
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    register_options(
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      [
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        Opt::RPORT(1521)
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      ]
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    )
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  end
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  def run_host(ip)
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    begin
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      connect
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      pkt = tns_packet("(CONNECT_DATA=(COMMAND=VERSION))")
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      sock.put(pkt)
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      select(nil, nil, nil, 0.5)
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      data = sock.get_once
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      if (data && data =~ /\\*.TNSLSNR for (.*)/)
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        ora_version = data.match(/\\*.TNSLSNR for (.*)/)[1]
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        report_service(
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          :host => ip,
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          :port => datastore['RPORT'],
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          :name => "oracle",
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          :info => ora_version
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        )
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        print_good("#{ip}:#{datastore['RPORT']} Oracle - Version: " + ora_version)
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      elsif (data && data =~ /\(ERR=(\d+)\)/)
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        case $1.to_i
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        when 1189
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          print_error("#{ip}:#{datastore['RPORT']} Oracle - Version: Unknown - Error code #{$1} - The listener could not authenticate the user")
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        else
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          print_error("#{ip}:#{datastore['RPORT']} Oracle - Version: Unknown - Error code #{$1}")
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        end
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      else
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        print_error("#{ip}:#{datastore['RPORT']} Oracle - Version: Unknown")
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      end
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      disconnect
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    rescue ::Rex::ConnectionError
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    rescue ::Errno::EPIPE
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    end
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  end
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end
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