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Security researcher reveals more about DNS flaw

IOActive security researcher Dan Kaminski has released more details about the Domain Name System (DNS) flaw in the internet's core infrastructure.

The flaw which would have caused online security issues for many internet users not only made it possible for internet traffic to be redirected but also permitted interception of e-mail messages by hackers, he highlighted.

Speaking in a packed hall at the Black Hat hacker conference in Las Vegas, Kaminski equated the flaw to turning around a street sign to send drivers down the wrong road.

He said the flaw could allow hackers to attach bad information to packets flowing in and out of DNS servers which make them change the directions they give to some websites.

The flaw first came to light when it was revealed that major online security giants and computer vendors like Microsoft, Cisco Systems and Sun Microsystems among others had been working secretly to eliminate the danger it posed.

Security patches have since been issued to prevent users from being exposed to online threats as a result of the flaw.

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