Adobe’s Zero-day Flaw

March 6, 2009

Yesterday, while visiting a Microsoft business client of Onsite Computer Services in New Orleans, we discovered a few Microsoft PCs with the ubiquitous Adobe reader that were infected with the zero-day flaw.

The vulnerability affects Adobe versions 9 and earlier and exploits corrupt arbitrary memory by way of a special PDF fileAdobe has thus far failed to issue a patch to address the Adobe flaw; however there are a few preventative measures you can take to protect your systems from this malware.

– Disable JavaScript in Adobe Reader only works against some exploits and does not resolve the underlying issue.

– Set your browser to not automatically open PDFs: The current versions of Internet Explorer and Mozilla Firefox automatically open PDFs by default.

A good, updated antivirus should provide a sufficient level of protection from this exploit.  The following measures can further protect your system:

Be wary of PDF files from unknown or untrusted sources – users should avoid opening up PDF files if they are suspicious.

– Consider enabling DEP (Data Execution Prevention) for Adobe Reader.

In addition to these, Sourcefire has created a homemade patch to serve as a band-aid until Adobe releases a fix for the issue. The Sourcefire patch can be downloaded here.

Officials at Adobe plan to make an update for Adobe Reader 9 and Acrobat 9 available by March 11. In addition, Adobe is planning to make updates available for Adobe Reader 7 and 8 and Acrobat 7 and 8 by March 18.

If you’re searching for New Orleans computer service or repair of your Microsoft based system or network, then call the Microsoft specialists at 504-469-6991. Onsite Computer Services, Inc. in New Orleans

You may also be interested in Onsite Computer’s Blog.

This New Orleans On-Site Computer Service post was provided by Eli Lucas. Eli can be reached at eli@onsitenola.com. Onsite Computer serves the Microsoft computing needs of small businesses throughout the Greater New Orleans area including Uptown, Lakeview, Broadmoor, Mid-City, Metairie, Jefferson, Kenner, Westbank, French Quarter, and the Warehouse District. Please visit our website for New Orleans Computer Service.

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