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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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require 'yaml'
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class MetasploitModule < Msf::Auxiliary
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  include Msf::Exploit::Remote::MYSQL
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  include Msf::Auxiliary::Report
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  include Msf::Auxiliary::Scanner
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  include Msf::OptionalSession::MySQL
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  def initialize
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    super(
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      'Name'           => 'MYSQL File/Directory Enumerator',
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      'Description'    => %Q{
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          Enumerate files and directories using the MySQL load_file feature, for more
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        information see the URL in the references.
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      },
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      'Author'         => [ 'Robin Wood <robin[at]digininja.org>' ],
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      'References'  => [
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        [ 'URL', 'http://pauldotcom.com/2013/01/mysql-file-system-enumeration.html' ],
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        [ 'URL', 'http://www.digininja.org/projects/mysql_file_enum.php' ]
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      ],
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      'License'        => MSF_LICENSE
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    )
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    register_options([
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      OptPath.new('FILE_LIST', [ true, "List of directories to enumerate", '' ]),
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      OptString.new('DATABASE_NAME', [ true, "Name of database to use", 'mysql' ]),
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      OptString.new('TABLE_NAME', [ true, "Name of table to use - Warning, if the table already exists its contents will be corrupted", Rex::Text.rand_text_alpha(8) ]),
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      OptString.new('USERNAME', [ true, 'The username to authenticate as', "root" ])
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    ])
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  end
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  # This function does not handle any errors, if you use this
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  # make sure you handle the errors yourself
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  def mysql_query_no_handle(sql)
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    res = self.mysql_conn.query(sql)
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    res
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  end
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  def run_host(ip)
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    vprint_status("Login...") unless session
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    # If we have a session make use of it
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    if session
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      print_status("Using existing session #{session.sid}")
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      self.mysql_conn = session.client
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    else
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      # otherwise fallback to attempting to login
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      return unless mysql_login_datastore
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    end
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    begin
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      mysql_query_no_handle("USE " + datastore['DATABASE_NAME'])
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    rescue ::Rex::Proto::MySQL::Client::Error => e
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      vprint_error("MySQL Error: #{e.class} #{e.to_s}")
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      return
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    rescue Rex::ConnectionTimeout => e
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      vprint_error("Timeout: #{e.message}")
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      return
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    end
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    res = mysql_query("SELECT * FROM information_schema.TABLES WHERE TABLE_SCHEMA = '" + datastore['DATABASE_NAME'] + "' AND TABLE_NAME = '" + datastore['TABLE_NAME'] + "';")
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    table_exists = (res.size == 1)
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    if !table_exists
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      vprint_status("Table doesn't exist so creating it")
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      mysql_query("CREATE TABLE " + datastore['TABLE_NAME'] + " (brute int);")
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    end
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    file = File.new(datastore['FILE_LIST'], "r")
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    file.each_line do |line|
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      check_dir(line.chomp)
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    end
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    file.close
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    if !table_exists
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      vprint_status("Cleaning up the temp table")
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      mysql_query("DROP TABLE " + datastore['TABLE_NAME'])
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    end
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  end
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  def check_dir dir
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    begin
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      res = mysql_query_no_handle("LOAD DATA INFILE '" + dir + "' INTO TABLE " + datastore['TABLE_NAME'])
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    rescue ::Rex::Proto::MySQL::Client::TextfileNotReadable
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      print_good("#{dir} is a directory and exists")
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      report_note(
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        :host  => mysql_conn.peerhost,
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        :type  => "filesystem.dir",
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        :data  => "#{dir} is a directory and exists",
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        :port  => mysql_conn.peerport,
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        :proto => 'tcp',
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        :update => :unique_data
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      )
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    rescue ::Rex::Proto::MySQL::Client::DataTooLong, ::Rex::Proto::MySQL::Client::TruncatedWrongValueForField
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      print_good("#{dir} is a file and exists")
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      report_note(
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        :host  => mysql_conn.peerhost,
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        :type  => "filesystem.file",
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        :data  => "#{dir} is a file and exists",
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        :port  => mysql_conn.peerport,
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        :proto => 'tcp',
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        :update => :unique_data
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      )
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    rescue ::Rex::Proto::MySQL::Client::ServerError
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      vprint_warning("#{dir} does not exist")
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    rescue ::Rex::Proto::MySQL::Client::Error => e
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      vprint_error("MySQL Error: #{e.class} #{e.to_s}")
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      return
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    rescue Rex::ConnectionTimeout => e
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      vprint_error("Timeout: #{e.message}")
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      return
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    else
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      print_good("#{dir} is a file and exists")
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      report_note(
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        :host  => mysql_conn.peerhost,
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        :type  => "filesystem.file",
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        :data  => "#{dir} is a file and exists",
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        :port  => mysql_conn.peerport,
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        :proto => 'tcp',
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        :update => :unique_data
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      )
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    end
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    return
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  end
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end
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