March 11, 2010

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Entries for month: November 2009

Various Varieties of Vulnerabilities

November 25 2009 by Cricket Liu (Infoblox)

Just yesterday, ISC announced the release of several versions of BIND to address a new vulnerability.  The vulnerability could allow unsigned data to be cached on a recursive name server configured to perform DNSSEC validation.

While that's alarming, it's not a systemic problem with DNSSEC; it's simply a flaw in BIND's implementation of DNSSEC.  (How could it be anything else if it was addressed by releasing new versions?)  Implementations of the latest incarnation of DNSSEC are still relatively new, so it should come as no surprise that we're still finding flaws.  (I'm proud to say that this particular defect was found by Michael Sinatra, who works for my alma mater, Berkeley.)

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Posted in DNSSEC | DNS Security | BIND | 0 comments



Giving Thanks for Good News in DNS

November 19 2009 by Cricket Liu (Infoblox)

Most of the results of our recent DNS Survey were pretty scary, especially the news that nearly 80% of the name servers we found in our sweep of 5% of the Internet's address space were open to recursion.  But the results contained some good news, too, and for that we should be thankful.

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Posted in DNSSEC | DNS Security | DNS Survey | 0 comments



The Dominoes Keep Falling

November 10 2009 by Cricket Liu (Infoblox)

To celebrate the 20th anniversary of the fall of the Berlin Wall today, Berliners and other reunified Germans toppled a set of 1000 giant dominoes—a metaphor for the fall of Communism in states throughout the Eastern Bloc.

While not as dramatic or significant as the fall of European Communism, several dominoes on the path to implementation of the DNS Security Extensions fell recently.

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Posted in DNSSEC | DNS Security | 0 comments