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Mmm, Smells Like 0day

Posted September 17, 2012    BeyondTrust Research Team

Just when you thought we were out of the woods, Internet Explorer 0day shows up, in the wild. Here’s what you need to know about the vulnerability:

  • Internet Explorer 6, 7, 8, and 9 are vulnerable (UPDATE: Out-of-band patch available now!)
  • Use-after-free when the CMshtmlEd object is deleted and then the same area in memory is used by CMshtmlEd::Exec()
  • Payload delivered via heap spray

It is suspected that this 0day is utilized by the same group that has been using the latest Java 0day to spread the Poison Ivy remote admin tool (RAT). Here’s how the attack is playing out, in the wild:

  • Malicious website hosts exploit.html and determines if target is running IE 7 or IE 8
  • exploit.html loads Moh2010.swf, which then performs a heap spray and loads an iframe
  • Protect.html is loaded and triggers the vulnerability
  • Poison Ivy is then downloaded (111.exe)

Once infected, the payload creates the following files and services:

  • C:\WINDOWS\system32\mspmsnsv.dll
  • WmdmPmSN service
The Metasploit module is reliable for IE 7 and IE 8 in Windows XP, but requires the Java Runtime Environment (JRE6 only, the module does not work with JRE7) for exploitation of IE 8 and IE 9 in Windows 7.
Blink and Retina Protection Agent have been verified to succesfully prevent exploitation of this vulnerability through its Application Protection functionality. Additionally, EMET 3.0 helps mitigate exploitation of this vulnerability.
You can detect vulnerable systems using Retina and Retina CS, via the following audit:
17089 – Microsoft Internet Explorer CMshtmlEd::Exec() Code Execution (Zero-Day)
Screenshot of Retina CS Audit 17089

Screenshot of Retina CS Audit 17089

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PowerBroker for Mac: A Least-Privileged Apple a Day…

Posted July 27, 2015    Jason Silva

BeyondTrust PowerBroker for Mac reduces the risk of privilege misuse by enabling standard users on Mac OS X to perform administrative tasks successfully without entering elevated credentials.

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On Demand Webinar – Now is the time for Privileged Account Management

Posted July 24, 2015    BeyondTrust Software

In this webinar, SANS Instructor and Founder of Voodoo Security, Dave Shackleford, will revisit several hacking and breach scenarios that involved privileged accounts, and use these as examples while discussing tools and tactics to get this problem under control once and for all.

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Privileged Account Management: The Time is Now

Posted July 22, 2015    Dave Shackleford

There’s plenty of problems we don’t have great options for in InfoSec today. Malware is a pain point that keeps evolving rapidly. 0-day exploits are tough to prepare for. Privileged account management? We got this. We know the root causes, we know how it manifests, we know how to get it under control effectively, and there are great technology solutions that are enterprise-class.

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