In this newly released paper Randal Vaughn and Gadi Evron discuss the threat of Distributed Denial of Service (DDoS) attacks using recursive DNS name servers open to the world. The study is based on case studies of several attacked ISPs reported to have on a volume of 2.8Gbps. One reported event indicated attacks reaching as high as 10Gbps and used as many as 140,000 exploited name servers. more
In my recent write-up I start by discussing some recent threats network operators should be aware of, such as recursive DNS attacks. Then, a bit on the state of the Internet, cooperation across different fields and how these latest threats with DDoS also relate to worms and bots, as well as spam, phishing and the immense ROI organized crime sees. I try and bring some suggestions on what can be done better, and where we as a community, as well as specifically where us, the "secret hand-shake clubs" of Internet security fail and succeed. Over-secrecy, lack of cooperation, lack of public information, and not being secret enough about what really matters. more
A recent paper called "Worm Propagation Strategies in an IPv6 Internet", written by Steven M. Bellovin, Angelos Keromytis, and Bill Cheswick, examines whether or not the deployment of IPv6 will in fact provide a substantial level of barrier against worms. Shared below are the introductory paragraphs from this paper. "In recent years, the internet has been plagued by a number of worms. One popular mechanism that worms use to detect vulnerable targets is random IP address-space probing..." more
Most of us would be put off if a court issued a press release cheering the number of prisoners its judges had put behind bars or the number of tenants it had helped landlords to evict. That seems antithetical to the neutral adjudication of disputes, and ethical rules regularly decry such "appearance of bias." Yet WIPO seems to think it perfectly natural to crow about its arbitrators' favoritism for complainants against "cybersquatters" in UDRP proceedings. It issued a release that reads like a solicitation for trademark claimants' business, not a promotion of neutral arbitration services... more
In a report released today, the World Intellectual Property Organization (WIPO) has announced a 20% increase in the number of cybersquatting (abusive registration of trademarks as domain names) cases filed in 2005 as compared to 2004. The report further indicates that "in 2005, a total of 1,456 cybersquatting cases were filed with WIPO's Arbitration and Mediation Center. This increase represents the highest number of cybersquatting cases handled by the WIPO Center since 2001." more
Internet domain names are truly bizarre. There is nothing especially remarkable about them from a technical perspective, but from a social and political perspective they are all sorts of fun. We can have arguments over control of the DNS root, arguments over whether names are property, arguments over innate rights to specific names, arguments over a registrar's right (or lack thereof) to exploit unregistered names for private gain, and many more arguments besides. In this article, I'd like to explore the argument-space rather than defend any particular position in it. In so doing, I hope to illuminate some novel (or under-emphasised) perspectives on the matter. more
Despite the significant traffic that comes from typed-in domain names, the public harumphing and clucking about type-in traffic is climbing in volume as it becomes clear how much money is involved. Articles this week show that domain names, and the people who make money on them, are making some commentators uncomfortable. more
Have you ever thought of how reputation is created in cyberspace? Beth Noveck wrote an article, 'Trademark Law and the Social Construction of Trust: Creating the Legal Framework for On-Line Identity' in which she argues that, to determine what rules should govern on-line identity, we should look to trademark law, which has the best set of rules to deal with the way reputation is created in cyberspace. more
The Measurement Factory and Infoblox have announced results of a survey of more than 1.3 million Internet-connected, authoritative domain name system (DNS) servers around the globe. The results of the survey indicate that as many as 84 percent of Internet name servers could be vulnerable to pharming attacks, and that many exhibit other security and deployment-related vulnerabilities. The surveys consisted of several queries directed at each of a large set of external DNS servers to estimate the number of systems deployed today and determine specific configuration details. more
The House Committee on Science recently held a hearing to "examine the extent of U.S. vulnerability to cyber attacks on critical infrastructure such as utility systems, and what the federal government and private sector are doing, and should be doing, to prevent and prepare for such attacks." Specific issues addressed at the hearing included whether: 1) the U.S. is able to detect, respond to, and recover from cyber-attacks on critical infrastructure; and 2) is there a clear line of responsibility within the federal government to deal with cybersecurity... more
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