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Re: [FD] Major Internet Explorer Vulnerability - NOT Patched

'could you share the contents of "1.php"?'
header("Location: http://www.dailymail.co.uk/robots.txt";);

"I'm assuming it is a delayed re-direct to the target's domain?"
Exactly. :-)

"the cloudflare scripts"
It's been tested without them.

Kind Regards,

On 2015/2/6 2:31, Barkley, Peter wrote:
Thanks Zaakiy,

I'm able to get the hacked page on IE9 after changing the document mode from Quirks to IE9 Standards. Screenshot attached. I'm sure you could get around having to manually switch the document mode with the appropriate DOCTYPE set in the exploit html page.

David, could you share the contents of "1.php"? I'm assuming it is a delayed re-direct to the target's domain? I am unable to reproduce the exploit locally with the same code (assuming my 1.php is correct), though without the cloudflare scripts.


Peter Barkley | Senior Security Intelligence Analyst | Security Operations Centre | Royal Bank of Canada

-----Original Message-----
From: Fulldisclosure [mailto:fulldisclosure-bounces@xxxxxxxxxxxx] On Behalf Of Zaakiy Siddiqui
Sent: 2015, February, 04 6:46 PM
To: David Leo; Joey Fowler
Cc: fulldisclosure@xxxxxxxxxxxx; bugs@xxxxxxxxxxxxxxxxxxx; bugtraq@xxxxxxxxxxxxxxxxx; cve-assign@xxxxxxxxx
Subject: Re: [FD] Major Internet Explorer Vulnerability - NOT Patched

Hi David,

Nice one…great find!  And thanks Joey for confirming the bypass of HTTP-to-HTTPS restrictions.

I can confirm that this also affects Spartan Browser (Experimental enabled in about:flags in Internet Explorer 11).

I can also confirm that IE 10 is affected.

IE 9 appears to not be vulnerable. Screenshots below.

Zaakiy Siddiqui

IE 11 Spartan - vulnerable (Windows 10)



IE 10 - vulnerable (Windows 7)

IE 9 - not vulnerable (Windows 7)


From: David Leo<mailto:david.leo@xxxxxxxxxxxx>
Sent: ‎Wednesday‎, ‎4‎ ‎February‎ ‎2015 ‎11‎:‎13‎ ‎PM
To: Joey Fowler<mailto:joey@xxxxxxxxxx>
Cc: bugtraq@xxxxxxxxxxxxxxxxx<mailto:bugtraq@xxxxxxxxxxxxxxxxx>, fulldisclosure@xxxxxxxxxxxx<mailto:fulldisclosure@xxxxxxxxxxxx>, bugs@xxxxxxxxxxxxxxxxxxx<mailto:bugs@xxxxxxxxxxxxxxxxxxx>, cve-assign@xxxxxxxxx<mailto:cve-assign@xxxxxxxxx>

Microsoft was notified on Oct 13, 2014.

Joey thank you very much for your words.

Kind Regards,

On 2015/2/3 4:53, Joey Fowler wrote:
Hi David,

"nice" is an understatement here.

I've done some testing with this one and, while there /are/ quirks, it most definitely works. It even bypasses standard HTTP-to-HTTPS restrictions.

As long as the page(s) being framed don't contain X-Frame-Options headers (with `deny` or `same-origin` values), it executes successfully. Pending the payload being injected, most Content Security Policies are also bypassed (by injecting HTML instead of JavaScript, that is).

It looks like, through this method, all viable XSS tactics are open!

Nice find!

Has this been reported to Microsoft outside (or within) this thread?

Joey Fowler
Senior Security Engineer, Tumblr

On Sat, Jan 31, 2015 at 9:18 AM, David Leo <david.leo@xxxxxxxxxxxx <mailto:david.leo@xxxxxxxxxxxx>> wrote:

     Deusen just published code and description here:
     http://www.deusen.co.uk/items/__insider3show.3362009741042107/ <http://www.deusen.co.uk/items/insider3show.3362009741042107/>
     which demonstrates the serious security issue.

     An Internet Explorer vulnerability is shown here:
     Content of dailymail.co.uk <http://dailymail.co.uk> can be changed by external domain.

     How To Use
     1. Close the popup window("confirm" dialog) after three seconds.
     2. Click "Go".
     3. After 7 seconds, "Hacked by Deusen" is actively injected into dailymail.co.uk <http://dailymail.co.uk>.

     Technical Details
     Vulnerability: Universal Cross Site Scripting(XSS)
     Impact: Same Origin Policy(SOP) is completely bypassed
     Attack: Attackers can steal anything from another domain, and inject anything into another domain
     Tested: Jan/29/2015 Internet Explorer 11 Windows 7

     If you like it, please reply "nice".

     Kind Regards,

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