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[FYI] Mafiaboy hat abgeschrieben


ComputerWorld: Update: Mafiaboy a copycat; attacks could have been stopped

   Apr 21, 2000, 00:43 UTC
   The Canadian teen-ager known as Mafiaboy, who was arrested this week
   (see story) in connection with an attack against the CNN Web site in
   February, is an amateur who simply copied tactics used by far more
   sophisticated attackers who may never be caught, security analysts
   Davis said another piece of the problem lies with the fact that
   Internet service providers (ISPs) and other outfits that make up the
   Internet backbone aren't using Ingress filtering, which prevents
   packet spoofing. The denial-of-service attacks defeated many defenses
   because the packets flooding targeted servers appeared to be coming
   from a legitimate source. Ingress filtering can determine if a packet
   was indeed sent from that location, and if its address is spoofed,
   it's stopped at the router.
   But Michael Lyle, chief technology officer at Recourse Technologies
   Inc. in Palo Alto, Calif., noted that this type of filtering affects
   network performance. In addition, the database for IP addresses isn't
   always accurate and could result in a loss of legitimate network
   traffic. "Databases need to get better and there needs to be better
   tools for putting together filtering lists for different service
   providers automatically," said Lyle.