Thursday, October 23, 2008

Microsoft MS08-067

I have been away from the blog for a while because of a series of reasons, but I couldn't avoid to comment on this recently published advisory from Microsoft, MS08-067. Just as some worms we witnessed in the past, this one is related to a core Windows service, meaning that almost all boxes are vulnerable. It's also interesting to see that the security efforts related to Vista and Server 2008 had brought results as those versions are not as vulnerable as previous versions to this issue. Thanks to DEP and ASLR for that!Now it's just a matter of time for the first worms and bots. I'm already seeing some emergency patch management processes being fired to deal with that, but it's important to ensure that detection and reaction capabilities are also up-to-date. Keep an eye on the sources for IDS signatures and be sure to check if your SIEM/Log analysis systems are able to identify abnormal traffic related to the Server service (139/445 TCP). Do a quick review of your incident management procedures to ensure that people will know what to do if the bell rings. For instance, if you catch signs of infection in your internal network, how will you act to identify and clean the infected computers?May the Force be with you!

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