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Microsoft Patch Tuesday – May 2011

Posted May 10, 2011    Chris Silva

Oh how I am starting to enjoy the odd numbered months this year. Back in January Microsoft released 2 bulletins. February followed with 12, March with 3, and April with 17. Now May has arrived with only 2 bulletins. If you are looking to avoid piles of patch deployment work this summer, I’d bet on taking vacation in June or August.

MS11-035 covers a vulnerability in WINS. If you aren’t using WINS within your environment, it is a good idea to verify that it has been disabled on your servers. If you are using WINS internally, make sure that TCP/42 and UDP/42 are blocked on external-facing firewalls.

MS11-036 addressed two more vulnerabilities in Microsoft PowerPoint. As you may recall, Microsoft patched three vulnerabilities in PowerPoint last month. This time around, PowerPoint 2010 is not affected. eEye Research recently published a report analyzing the 2010 Microsoft Security Bulletins. One of the many findings is that upgrading your Microsoft software is a good security practice.

As a reminder, tomorrow’s Vulnerability Expert Forum (VEF) will be at 1PM PDT. Sign up to hear what the eEye Research team has to say about today’s security bulletins and other security related topics. As there are only two Microsoft bulletins to cover, there should be ample time to touch on other topics and answer your questions.

Here are our recommendations for the two security updates. Retina Network Security Scanner customers can view the list of audits associated with these bulletins.

Deploy Immediately

MS11-035 – Vulnerability in WINS Could Allow Remote Code Execution (2524426)

Recommendation: Deploy patch immediately to prevent exploitation by attackers. Until the patch can be installed, block ports TCP/42 and UDP/42 on external-facing firewalls.

Deploy As Soon As Possible

MS11-036 – Vulnerabilities in Microsoft PowerPoint Could Allow Remote Code Execution (2545814)

Recommendation: Deploy patches as soon as possible. Until the patches can be installed, Office File Validation should be enabled to prevent the loading of invalid PowerPoint 2003 and 2007 files. Additionally, use Microsoft Office File Block policy and Microsoft Office Isolated Conversion Environment (MOICE) to deter exploitation via Office 2003 and earlier binary files.

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Additional articles

Dark Reading

2014: The Year of Privilege Vulnerabilities

Posted December 18, 2014    Chris Burd

Of the 30 critical-rated Microsoft Security Bulletins this year, 24 involved vulnerabilities where the age-old best practice of “least privilege” could limit the impact of malware and raise the bar of difficulty for attackers.

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Looking back on information security in 2014

Posted December 16, 2014    Dave Shackleford

Dave Shackleford is a SANS Instructor and founder of Voodoo Security. Join Dave for a closer look at the year in security, and learn what you can do to prepare for 2015, with this upcoming webinar. 2014 has been one heck of an insane year for information security professionals. To start with, we’ve been forced…

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patch-tuesday

December 2014 Patch Tuesday

Posted December 9, 2014    BeyondTrust Research Team

This month marks the final Patch Tuesday of 2014. Most of what is being patched this month includes Internet Explorer, Exchange, Office, etc… and continues a trend of the greatest hits collection of commonly attacked Microsoft software. Probably the one thing that broke the mold this month is that for once there is not some…

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