ROP Mitigations Bypassed
ROP Mitigations Bypassed
Written by Andrew Johnson   
Monday, 13 August 2012

Whenever you improve your security fence, the dedicated intruder will find another way in. This has already happened to the latest release of Microsoft's anti-hacking toolkit, thereby defeating the ROPGuard protection that won a $50,000 prize.

Microsoft's BlueHat Prize for defenses against attacks on memory vulnerabilities was organized in conjunction with the annual BlackHat conference. The three prize winners all suggested solutions to counter ROP attacks and even before the prizes had been presented one of these had been put to work in a free tool that Microsoft makes available to sys admins.

Microsoft's General Manager for Trustworthy Computing Security, Matt Thomlinson, announced the latest version of its Enhanced Mitigation Experience Toolkit (EMET 5.3) on July 25 stating:

I’m excited to announce that we’ve already been able to incorporate one of these winning technologies into our free Enhanced Mitigation Experience Toolkit (EMET) 3.5 technology preview. The new Tech Preview of EMET offers four new checks based on Ivan Fratric’s ROP exploit mitigation to help prevent attacks utilizing ROP techniques.


rop

 

It took barely two weeks before a security researcher announced on his new REP RET blog that he had bypassed these new ROP Mitigations. Here is the You Tube video that demonstrate the exploit:

 

More details, including the asm code and the Kernelbase method used for a second exploit, can be found via the blog post.

More Information

Bypassing EMET 3.5's ROP Mitigation

Related Articles

BlueHat Prizes Awarded

 

 
 

 

blog comments powered by Disqus

 

To be informed about new articles on I Programmer, install the I Programmer Toolbar, subscribe to the RSS feed, follow us on, Twitter, Facebook, Google+ or Linkedin,  or sign up for our weekly newsletter.

 

Banner


Flash Finally Declared Dead - It Was Murder
26/07/2017

Adobe has finally announced that Flash will be no more after 2020. If you are one of the many programmers who thought that Flash was already dead this will come as a surprise, but presumably not an un [ ... ]



GitHub Introduces Embedded Code Snippets
17/08/2017

GitHub has added support for embedded code snippets, and there's an updated version of Git, the open source version control system, with a long list of changes, several to the UI. 


More News

Last Updated ( Monday, 13 August 2012 )
 
 

   
Banner
Banner
RSS feed of news items only
I Programmer News
Copyright © 2017 i-programmer.info. All Rights Reserved.
Joomla! is Free Software released under the GNU/GPL License.