A Surevy on Detection of Sinkhole Attack in Wireless Sensor Network

A Surevy on Detection of Sinkhole Attack in Wireless Sensor Network

Hitesh Yadav1 Research Scholar Dept. of Computer Science & Engg. Kalinga University, Naya Raipur Chhattisgarh, India

Ms. Sana Tak2 Asst. Professor

Dept. of Computer Science & Engg. Kalinga University, Naya Raipur Chhattisgarh, India

Abstract: Wireless Sensor Network is a collection of the large number of small sensor node that has the capabilities to sense, collect, and disseminate information in many types of applications. This paper focuses on exploring several types of security attack in wireless sensor network and counteragent against sinkhole attack. The Introduction sections give brief information about WSN, its components, and architecture. Then in next section discuss Sinkhole attack and its counteragent method.

Keywords: Wireless sensors networks (WSN), Security attacks in WSN, Sinkhole attack, Counteragent against Sinkhole attack.

I. INTRODUCTION

Wireless sensor network is consisting of large number of small sensor nodes that has capabilities to sense, collect, and send to base station [9]. The sensor nodes are combined with processing power and wireless communication makes it lucrative for being exploited in abundance in future. Wireless sensor network consists of battery-operated sensor devices with processing unit and communicating components [1]. This paper is outlined as follows. Section I provide the introduction to WSN and covers the basic components and architecture of WSN. Section II describes various security threats of WSN. Section III describes the Sinkhole attack in WSN. Section IV describes some security counteragent mechanism against these security threats. Section V provides the conclusion of highlighted issues.

WSN ARCHITECHURE

WSN has the following network components sensor nodes, gateway, network manager and security manager.

1. Sensor nodes: – Each sensor node has following parts a radio transceiver with an internal antenna or connection to an external antenna, a microcontroller, an electronic circuit for interfacing with other sensors and energy source like battery or embedded form energy generating system (solar panels).

2. Gateways: – Gateway is also known as Access point, it enables communication between host application and sensor nodes. A gateway is a network node that provides access to another network that uses different protocols and enables transmitted data to use its routing paths.

3. Network Manager: – A Network Manager is responsible for configuration of the network, scheduling communication between devices, management of the routing tables and monitoring and reporting the health of the network.

4. Security Manager: – The security manager is responsible for the generation storage and management of keys.

   The base stations are one of most importance components of the WSN with more computational, energy and communication resource. They act as gateway between sensor nodes and the end user as they forward data from the WSN on to a server [1].

   Figure 1: Architecture of a Wireless Sensor Network

   II SECURITY THREATS

   Wireless sensor network are vulnerable to security attacks due to the broadcast nature of the transmission medium. The attacks are basically classified into two categories i.e. passive and active attack.

   1. Passive attack: The monitoring and listening of the communication channel by unauthorized attackers are known as passive attack. There are some common attacks against sensor privacy are:

      • Monitor and Eavesdropping: It is most common attack to privacy. By snooping to the data, the adversary could easily discover the communication contents.

      • Traffic analysis: Even when the messages transferred are encrypted, it still leaves a high possibility analysis of the communication patterns. Sensor activates can potentially reveal enough information to enable an adversary to cause malicious harm to the sensor network

      • Camouflage Adversaries: One can insert their node or compromise the nodes to hide in the sensor network. After that these nodes can copy as a normal node to attract the packets, then misroute the packets, conducting the privacy analysis.

   2. Active Attacks: The unauthorized attackers monitors, listens to and modifies the data stream in the communication channel are known as active attack. The following attacks are active in nature.

• Routing Attacks in Sensor Networks: The attacks which act on the network layer are called routing attacks. The following are the attacks that happen while routing the messages.

• Attacks on Information in transit: In a sense or network, sensors monitor the changes of specific parameters or values and report to the sink according to the requirement. While sending the report, the information in transit may be altered, spoofed, replayed again or vanished.

• Selective Forwarding: A malicious node can selectively drop only certain packets. Especially effective if combined with an attack that gathers much traffic via the node. In sensor networks, it is assumed that nodes faithfully forward received messages. But some compromised node might refuse to forward packets, however neighbors might start using another route.

• Sinkhole Attack: In this attack, a malicious node acts as a black hole to attract all the traffic in the sensor network. In fact, this attack can affect even the nodes those are considerably far from the base stations. Figure c-1 shows the conceptual view of a sinkhole attack [1].

  Base Station Attacker

  /Sink

  location in the network and tunnels those to another location. Attackers here are strategically placed at different ends of a network. They can receive messages and replays them in different parts by means of a tunnel [3].

  Figure 2 (a and b) shows a situation where a wormhole attack takes place.

  When a node B (for example, the base station or any other sensor) broadcasts the routing request packet, the attacker receives this packet and replays it in its neighborhood. Each neighboring node receiving this replayed packet will consider itself to be in the range of Node B, and will mark this node as its parent. Hence, even if the victim nodes are multi-hop apart from B, attacker in this case convinces them that B is only a single hop away from them, thus creates a wormhole [2].

• HELLO flood attacks: An attacker sends or replays a routing protocols HELLO packets from one node to another with more energy. This attack uses HELLO packets as a weapon to convince the sensors in WSN.

• Node Replication Attacks: Conceptually, a node replication attack is quite simple; an attacker seeks to add a node to an existing sensor network by copying the node ID of an existing sensor node. A node replicated in this approach can severely disrupt a sensor networks performance. Packets can be corrupted or even misrouted.

• False Node: A false node involves the addition of a node by an adversary and causes the injection of malicious data. An intruder might add a node to the system that feeds false data or prevents the passage of true data. Insertion of malicious node is one of the most dangerous attacks that can occur.

• Physical Attacks: Unlike many other attacks mentioned above, physical attacks destroy sensors permanently, so the losses are irreversible. For instance, attackers can extract cryptographic secrets, tamper with the associated circuitry, modify programming in the sensors, or replace them with malicious snsors under the control of the attacker.

Figure 1: The Conceptual View of Sinkhole attack

• Wormholes Attacks: Wormhole attack is a critical attack in which the attacker records the packets (or bits) at one

III SINKHOLE ATTACK

Sinkhole attack is an insider attack were an intruder compromise a node inside the network and launches an attack then that node try to attract all the traffic from neighbor nodes based on routing metric that used in routing protocol [9]. Sinkhole attack is one of the severe attacks in this type of

network; this makes trustable nodes to malicious nodes that result in loss of secure information.

Sinkhole attacks typically work by making a compromised node look especially attractive to surrounding nodes with respect to the routing algorithm. Sinkhole attacks are difficult to counter because routing information supplied by a node is difficult to verify. As an example, a laptop-class adversary has a strong power radio transmitter that allows it to provide a high-quality route by transmitting with enough power to reach a wide area of the network.

Figure 3: Demonstration of Sinkhole attack

Figure 4 denotes how sinkhole is created using wormhole. As shown in figure, one malicious node attracts all the traffic and make a tunnel with another malicious node to reach to the base station.

Figure 4: Sinkhole using wormhole attack [2]

IV COUNTERAGENTS APPROACH FOR SINKHOLE ATTACK

• Data Consistency & Network Flow Information Approach The approach presented involves the base station in the

  detection process, resulting in a high communication cost for the protocol. The base station floods the network with a request message containing the IDs of the affected nodes. The affected nodes reply to the base station with a message containing their IDs, ID of the next hop and the associated

  cost. The received information is then used from the base station to construct a network flow graph for identifying the sinkhole. The algorithm is also robust to deal with cooperative malicious nodes that attempt to hide the real intruder. The performance of the proposed algorithm has been examined through both numerical analysis and simulations. The results have demonstrated the effectiveness and accuracy of the algorithm [2]. They also suggest that its communication and computation overheads are reasonably low for wireless sensor networks.

• Hop Count Monitoring Scheme

  A novel intrusion detection system that detects the presence of a sinkhole attack is proposed in [5]. The scheme is based on hop count monitoring. Since the hop-count feature is easily obtained from routing tables, the ADS (Anomaly Detection System) is simple to implement with a small footprint. Moreover, the proposed ADS is applicable to any routing protocol that dynamically maintains a hop-count parameter as a measure of distance between source and destination nodes. The scheme can detect attacks with 96% accuracy and no false alarms using a single detection system in a simulated network.

• RSSI Based Scheme

  A new approach of robust and lightweight solution for detecting the sinkhole attack based on Received Signal Strength Indicator (RSSI) readings of messages is proposed in [2]. The proposed solution needs collaboration of some Extra Monitor (EM) nodes apart from the ordinary nodes. It uses values of RSSI from four EM nodes to determine the position of all sensor nodes where the Base Station (BS) is located at origin position (0, 0). This information is used as weight from the BS in order to detect Sinkhole attack. The simulation results show that the proposed mechanism is lightweight due to the monitor nodes were not loaded with any ordinary nodes or BS. The proposed mechanism does not cause the communication overhead.

• Mobile Agent Based Approach

  The scheme to defend against sinkhole attacks using mobile agents is proposed in [10]. Mobile agent is a program Segment which is self-controlling. They navigate from node to node not only transmitting data but also doing Computation. A routing algorithm with multiple constraints is proposed based on mobile agents. It uses mobile agents to collect information of all mobile sensor nodes to make every node aware of the entire network so that a valid node will not listen the cheating information from malicious or compromised node which leads to sinkhole attack. It does not need any encryption or decryption mechanism to detect the sinkhole attack. This mechanism does not require more energy than normal routing protocols.

  • Rule Based

    The rules are designed based on the behavior or technique used to launch sinkhole attack. Then those rules are imbedding in intrusion detection system which runs on each sensor nodes. Those rules were then applied to the packet transmitted through the network nodes. If any node violates the rules is considered as adversary and isolated from the network [9].

  • Key management

In this approach, the integrity and authenticity of packet travels within the network is protected by using encryption and decryption key mechanism. Any packet transmitted in the network is added with another message in a way that to access that message requires a key and any small modification of the message can be easily detected. Those keys also help nodes to check if the message comes from base station and check the authenticity of the message [12].

V CONCLUSION

In contrast to traditional networks, Wireless Sensor networks (WSN) are more vulnerable to attacks. Among all major attacks on sensor networks, sinkhole attack is the most destructive routing attacks for these networks [2]. Majority of researches struggled with security challenges corresponding with availability of resources and mobility of wireless sensor nodes.Very few researchers managed to validate their security system using real wireless sensor network. Also some of results showed low detection rate, high network overhead and high communication cost.Thinking like the attacker people understands better their goals and intentions. This will help them to protect their systems and networks better for the future intrusions; it will help us to create better intrusion detection systems and so on [11].

Even if there are so many types of attacks and the possibility of having the system compromised people must not give up to the security systems like firewalls, antivirus software, cryptographic systems and software Authors and Affiliations.

ACKNOWLEDGMENT

. I would like to express my sincere gratitude to my guide Ms Sana Tak for giving me the opportunity to work on this topic. It would never be possible for me to take this project to this level without her relentless support and encouragement.

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AUTHOR PROFILE

Hitesh Yadav received the BE degree in Computer Science and Engineering from CSVT University, Bhilai Chhattisgarh and pursing M.Tech final year from Kalinga University Naya Raipur Chhattisgarh.

Ms. Sana Tak received the BE/B.Tech. and the M.Tech. Degree all from the Faculty of Computer Science and Engineering. She is an Asst. professor of Department of Computer Science and Engineering at the Kalinga University, Naya Raipur Chhattisgarh, India.