Abstract:In this papper, we study a resource starvation challenge caused by low rate DoS (Denial of Service)-DDoS (Distributed DoS) attacks targeting the last-matching rules of the firewall's security policy. Our onset challenge detection mechanisms considers a CPU utilization threshold to keep track of firewall processing performance. In this way, when this threshold is reached, an initial alarm of the occurrence of an attack is triggered. Such a methodology enable to deploy an strategy of impact mitigation. Initial r… Show more
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