Revue de l'Information Scientifique et Technique
Volume 24, Numéro 1, Pages 20-30

Resistance Against Dos Attacks In Vanets Using The Ids Snort

Authors : Rahal Rabah . Kahya Noudjoud . Ghoualmi-zine Nacira .

Abstract

The Denial of Service (DoS) attack represents one of the most dangerous problems in the field of computer security. It purpose is to threaten the availability of a service or a system. Its application in a network like VANET (vehicular ad-hoc networks) could even cause fatal accidents. To combat this kind of vulnerability, we propose the use of an intrusion detection system (IDS) known as Snort. This IDS will allow us to detect it and fight it by applying a Tcp reset attack against the attacker, which is a computer attack that can be used for a beneficial reason. In this paper, we will implement Snort in a real vehicular network established at the University of Badji Mokhtar Annaba, Algeria. We will apply a DoS attack on a target vehicle. We will extract information about the throughput problems in order to create an image on the damages brought by the attacker on the target machine. We will study the effectiveness of Snort in fighting against the applied attack. Finally, we will study the impact of speed on Snort's effectiveness. The results shows the efficiency of Snort, were it decreased the rate of throughput problems caused by DoS with 51% at a speed of 20 km/h.

Keywords

VANET ; Security ; DoS ; IDS ; Snort ; Tcp-reset ; Test-bed