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Five years after the disclosure of a serious vulnerability in the Domain Name System dubbed the Kaminsky bug, only a handful of U.S. ISPs, financial institutions or e-commerce companies have deployed DNS Security Extensions (DNSSEC ) to alleviate this threat. Five Year-Old DNS Flaw Remains Unplugged Amongst Major U.S. Companies [networkworld.com]
While DNS software patches are available to help plug the Kaminsky hole, experts agree that the best long-term fix is DNSSEC, which uses digital signatures and public-key encryption to allow websites to verify their domain names and corresponding IP addresses and prevent man-in-the-middle attacks.
"For whatever reason, the importance of securing their DNS has not raised itself up to a high enough level of priority for these organizations," says Mark Beckett, vice president of marketing for Secure64. "Perhaps they don't know there is a hole in the DNS and that if it is attacked, their customers could have their personal or financial information compromised."
Ironically, DNSSEC is currently making some DNS reflection attacks worse because of the large amount of data that DNSSEC can return.