Re: A Fundamental Look at DNSSEC, Deployment, and DNS Security ExtensionsGavin Brown – Aug 11, 2006 12:41 AM PST
Regarding the issue of denial-of-service, a DDoS attack that used the DNSSEC-enabled .SE zone as a payload has already beens observed in the wild - a message was posted to the dns-operations list yesterday (can't find a link to an archive, sorry). Thanks to the large RRSETs that result from signed zones, attackers no longer need an open recursive nameserver to amplify their payloads - they can just set the DNSSEC bit in their spoofed requests.
Regarding the issue of denial-of-service, a DDoS attack that used the DNSSEC-enabled .SE zone as a payload has already beens observed in the wild - a message was posted to the dns-operations list yesterday (can't find a link to an archive, sorry). Thanks to the large RRSETs that result from signed zones, attackers no longer need an open recursive nameserver to amplify their payloads - they can just set the DNSSEC bit in their spoofed requests.
http://lists.oarci.net/pipermail/dns-operations/2006-August/000949.html