Land rapid7#3987 - Buffalo Linkstation NAS Login Scanner

Author: wchen-r7

lib/metasploit/framework/login_scanner/buffalo.rb

@@ -0,0 +1,65 @@
+require 'metasploit/framework/login_scanner/http'
+require 'json'
+
+module Metasploit
+  module Framework
+    module LoginScanner
+
+      # Buffalo Linkstation NAS login scanner
+      class Buffalo < HTTP
+
+        # Inherit LIKELY_PORTS,LIKELY_SERVICE_NAMES, and REALM_KEY from HTTP
+        CAN_GET_SESSION = true
+        DEFAULT_PORT    = 80
+        PRIVATE_TYPES   = [ :password ]
+
+        # (see Base#set_sane_defaults)
+        def set_sane_defaults
+          self.uri = "/dynamic.pl" if self.uri.nil?
+          self.method = "POST" if self.method.nil?
+
+          super
+        end
+
+        def attempt_login(credential)
+          result_opts = {
+              credential: credential,
+              host: host,
+              port: port,
+              protocol: 'tcp'
+          }
+          if ssl
+            result_opts[:service_name] = 'https'
+          else
+            result_opts[:service_name] = 'http'
+          end
+          begin
+            cli = Rex::Proto::Http::Client.new(host, port, {}, ssl, ssl_version)
+            cli.connect
+            req = cli.request_cgi({
+              'method'=>'POST',
+              'uri'=>'/dynamic.pl',
+              'vars_post'=> {
+                'bufaction'=>'verifyLogin',
+                'user' => credential.public,
+                'password'=>credential.private
+                }
+            })
+            res = cli.send_recv(req)
+            body = JSON.parse(res.body)
+            if res && body.has_key?('success') && body['success']
+              result_opts.merge!(status: Metasploit::Model::Login::Status::SUCCESSFUL, proof: res.body)
+            else
+              result_opts.merge!(status: Metasploit::Model::Login::Status::INCORRECT, proof: res)
+            end
+          rescue ::JSON::ParserError
+            result_opts.merge!(status: Metasploit::Model::Login::Status::INCORRECT, proof: res.body)
+          rescue ::EOFError, Errno::ETIMEDOUT, Rex::ConnectionError, ::Timeout::Error
+            result_opts.merge!(status: Metasploit::Model::Login::Status::UNABLE_TO_CONNECT)
+          end
+          Result.new(result_opts)
+        end
+      end
+    end
+  end
+end

modules/auxiliary/scanner/http/buffalo_login.rb

@@ -0,0 +1,72 @@
+##
+# This module requires Metasploit: http//metasploit.com/download
+# Current source: https://github.com/rapid7/metasploit-framework
+##
+
+require 'msf/core'
+require 'metasploit/framework/credential_collection'
+require 'metasploit/framework/login_scanner/buffalo'
+
+class Metasploit3 < Msf::Auxiliary
+  include Msf::Auxiliary::Scanner
+  include Msf::Exploit::Remote::HttpClient
+  include Msf::Auxiliary::Report
+  include Msf::Auxiliary::AuthBrute
+
+  def initialize
+    super(
+      'Name'           => 'Buffalo NAS Login Utility',
+      'Description'    => 'This module simply attempts to login to a Buffalo NAS instance using a specific user/pass. It is confirmed to work with 1.68',
+      'Author'         => [ 'Nicholas Starke <starke.nicholas[at]gmail.com>' ],
+      'License'        => MSF_LICENSE
+    )
+
+    register_options(
+      [
+        Opt::RPORT(80)
+      ], self.class)
+
+    deregister_options('RHOST')
+  end
+
+  def run_host(ip)
+    cred_collection = Metasploit::Framework::CredentialCollection.new(
+            blank_passwords: datastore['BLANK_PASSWORDS'],
+            pass_file: datastore['PASS_FILE'],
+            password: datastore['PASSWORD'],
+            user_file: datastore['USER_FILE'],
+            userpass_file: datastore['USERPASS_FILE'],
+            username: datastore['USERNAME'],
+            user_as_pass: datastore['USER_AS_PASS']
+    )
+
+    scanner = Metasploit::Framework::LoginScanner::Buffalo.new(
+      host: ip,
+      port: rport,
+      proxies: datastore['PROXIES'],
+      cred_details: cred_collection,
+      stop_on_success: datastore['STOP_ON_SUCCESS'],
+      connection_timeout: 10,
+      user_agent: datastore['UserAgent'],
+      vhost: datastore['VHOST']
+    )
+
+    scanner.scan! do |result|
+      credential_data = result.to_h
+      credential_data.merge!(
+          module_fullname: fullname,
+          workspace_id: myworkspace_id
+      )
+      if result.success?
+        credential_core = create_credential(credential_data)
+        credential_data[:core] = credential_core
+        create_credential_login(credential_data)
+
+        print_good "#{ip}:#{rport} - LOGIN SUCCESSFUL: #{result.credential}"
+      else
+        invalidate_login(credential_data)
+        print_status "#{ip}:#{rport} - LOGIN FAILED: #{result.credential} (#{result.status})"
+      end
+    end
+  end
+end

spec/lib/metasploit/framework/login_scanner/buffalo_spec.rb

@@ -0,0 +1,10 @@
+require 'spec_helper'
+require 'metasploit/framework/login_scanner/buffalo'
+
+describe Metasploit::Framework::LoginScanner::Buffalo do
+
+    it_behaves_like 'Metasploit::Framework::LoginScanner::Base',  has_realm_key: true, has_default_realm: false
+    it_behaves_like 'Metasploit::Framework::LoginScanner::RexSocket'
+    it_behaves_like 'Metasploit::Framework::LoginScanner::HTTP'
+
+end