Adaptive Layered Approaches for Intrusion Mitigation System in Heterogeneous Wireless Sensor Networks

Abstract

Wireless Sensor Network (WSN) contains a group of sensor nodes that work together to perform a common application. The WSN collects data from the inhospitable places and also performs the complex applications. As the WSN are deployed in the unprotected environment, they are prone to various attacks. In the first phase of this research work, different attacks in the WSN are surveyed. Based on the survey, the WSN attacks are categorized into two types such as active attack, and passive attack. In the active attack, the attacker monitors, listens, and modifies the data stream in the communication channel. The types of the active attacks are routing attack, Denial of Service (DoS) attack, node supervision, node malfunction, node outage, physical attacks, message corruption, false node, node replication attacks, and passive information gathering. In the passive attack, the attacker obtains the information regarding the WSN and the sensor data. When compared to the active attacks, the passive attacks are difficult to be detected. The passive attacks are classified into passive sniffing, traffic analysis, and camouflage adversaries. To protect the WSN environment from various security threats, the Intrusion Detection System (IDS) is used. The IDS is a powerful tool that identifies, and deflects the malicious attacks over the network. The IDS can be broadly classified into two categories such as network based, and host based attacks. The network based attacks are further classified into two types such as misuse attack, and anomaly based attack. The host based attack is classified as specification based attacks. From the analysis of the various attacks it is concluded that blocking the attack is the optimal defence mechanism. newline