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Security in Context: The BeyondTrust Blog

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Bringing you news and commentary on solutions and strategies for protecting critical IT infrastructure in the context of your business.

Internet Explorer 8 0day

Posted May 6, 2013    BeyondTrust Research Team

Last week, news broke that the U.S. Department of Labor’s (DoL) website was compromised… and that it had been serving up Internet Explorer 0day to its visitors. This 0day, CVE-2013-1347 (Retina Audit 19041 – Microsoft Internet Explorer 8 Remote Code Execution Vulnerability (Zero-Day)), only affects Internet Explorer 8 on Windows XP, Vista, and Windows 7 (as well as Server 2003, 2008, and 2008 R2). However, the exploit used on the U.S. Department of Labor website only targeted Windows XP machines. Here’s what else you need to know:

Metasploit module available, targeting Windows XP, Server 2003, Vista, and Windows 7 (PowerBroker Endpoint Protection Platform detects and defeats this module)

• Blocking/disabling Active Scripting in both Internet and intranet zones mitigates exploitation

• Highly likely this vulnerability will be used by exploit packs in the immediate future

• Vulnerability based on reliable use-after-free condition (mshtml!CGenericElement)

• Grants arbitrary code execution within the context of the currently logged on user (least privilege environment, anyone?)

So what can you do right now to protect your organization? If possible, use another browser like Chrome or Firefox, disable Active Scripting if you still have to use IE8, do not run as Administrator, and finally, upgrade – Internet Explorer 9 and 10 are not vulnerable to this issue.

Update 5-9-2013: Microsoft has released a Fix it for this 0day.

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Additional articles

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Webinar March 4th: Recreating the Carbanak Breach & Techniques for Mitigating Similar Attacks

Posted March 3, 2015    Lindsay Marsh

Join BeyondTrust Research and Development team for an in-depth live webinar that will explore the attack vectors used in the Carbanak Bank Breach and share successful mitigation techniques needed to prevent this type of attack.

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How to Audit VMware ESX and ESXi Servers Against the VMware Hardening Guidelines with Retina CS

Posted February 27, 2015    BeyondTrust Research Team

Retina CS Enterprise Vulnerability Management has included advanced VMware auditing capabilities for some time, including virtual machine discovery and scanning through a cloud connection, plus the ability to scan ESX and ESXi hosts using SSH. However, in response to recent security concerns associated with SSH, VMware has disabled SSH by default in its more recent…

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Privileged Passwords: The Bane of Security Professionals Everywhere

Posted February 19, 2015    Dave Shackleford

Passwords have been with us since ancient times. Known as “watchwords”, ancient Roman military guards would pass a wooden tablet with a daily secret word engraved from one shift to the next, with each guard position marking the tablet to indicate it had been received. The military has been using passwords, counter-passwords, and even sound…

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