scholarly journals MODERN APPROACHES OF SECURING COMPUTER NETWORKS FROM DENIAL OF SERVICE ATTACKS

2014 ◽  
pp. 95-104
Author(s):  
Andrian Piskozub
Keyword(s):  
Computer Networks ◽  
Denial Of Service ◽  
Denial Of Service Attacks ◽  
Dos Attacks

The aim of this paper is to understand reasons why denial of service (DoS) attacks are happening; to find ways how to avoid these attacks or lessen their influence; to work out strategy of detecting and preventing these attacks.

Vulnerability Analysis and Defenses in Wireless Networks

2008 ◽  
pp. 129-144
Author(s):  
Lawan A. Mohammed ◽  
Biju Issac
Keyword(s):  
Wireless Networks ◽  
Defense Mechanisms ◽  
Denial Of Service ◽  
Denial Of Service Attacks ◽  
Critical Component ◽  
Dos Attacks ◽  
Security Vulnerabilities ◽  
Wired Networks ◽  
Security Challenges ◽  
Network Vulnerabilities

This chapter shows that the security challenges posed by the 802.11 wireless networks are manifold and it is therefore important to explore the various vulnerabilities that are present with such networks. Along with other security vulnerabilities, defense against denial of service attacks is a critical component of any security system. Unlike wired networks where denial of service attacks has been extensively studied, there is a lack of research for preventing such attacks in wireless networks. In addition to various vulnerabilities, some factors leading to different types of denial of service (DoS) attacks and some defense mechanisms are discussed in this chapter. This can help to better understand the wireless network vulnerabilities and subsequently more techniques and procedures to combat these attacks may be developed by researchers.

scholarly journals Detection of DoS Attacks in an IoT Environment with MQTT Protocol Based on Intelligent Binary Classifiers

2021 ◽  
Vol 7 (1) ◽  
pp. 16
Author(s):  
Álvaro Michelena ◽  
Francisco Zayas-Gato ◽  
Esteban Jove ◽  
José Luis Calvo-Rolle
Keyword(s):  
Dimension Reduction ◽  
Denial Of Service ◽  
Denial Of Service Attacks ◽  
Classification Algorithms ◽  
Dos Attacks ◽  
Reduction Techniques ◽  
Binary Classifiers ◽  
Dimension Reduction Techniques

The present work deals with the problem of detecting Denial of Service attacks in an IoT environment. To achieve this goal, a dataset registered in an MQTT protocol network is used, applying dimension reduction techniques combined with classification algorithms. The final classifiers presents successful results.

scholarly journals AntibIoTic: Protecting IoT Devices Against DDoS Attacks

2017 ◽  
Author(s):  
Michele De Donno ◽  
Nicola Dragoni ◽  
Alberto Giaretta ◽  
Manuel Mazzara
Keyword(s):  
Denial Of Service ◽  
Main Idea ◽  
Denial Of Service Attacks ◽  
Distributed Denial Of Service ◽  
Ddos Attacks ◽  
Dos Attacks ◽  
The World ◽  
Iot Devices

The 2016 is remembered as the year that showed to the world how dangerous distributed Denial of Service attacks can be. Gauge of the disruptiveness of DDoS attacks is the number of bots involved: the bigger the botnet, the more powerful the attack. This character, along with the increasing availability of connected and insecure IoT devices, makes DDoS and IoT the perfect pair for the malware industry. In this paper we present the main idea behind AntibIoTic, a palliative solution to prevent DoS attacks perpetrated through IoT devices.

Denial-of-Service (DoS) Attack and Botnet

2021 ◽  
pp. 49-73
Author(s):  
Arushi Arora ◽  
Sumit Kumar Yadav ◽  
Kavita Sharma
Keyword(s):  
Defense Mechanism ◽  
Denial Of Service ◽  
The Other ◽  
Denial Of Service Attacks ◽  
Ddos Attacks ◽  
Dos Attack ◽  
Dos Attacks ◽  
Commercial Software ◽  
Other Hand ◽  
Insight Into

This chapter describes how the consequence and hazards showcased by Denial of Service attacks have resulted in the surge of research studies, commercial software and innovative cogitations. Of the DoS attacks, the incursion of its variant DDoS can be quite severe. A botnet, on the other hand, is a group of hijacked devices that are connected by internet. These botnet servers are used to perform DDoS attacks effectively. In this chapter, the authors attempt to provide an insight into DoS attacks and botnets, focusing on their analysis and mitigation. They also propose a defense mechanism to mitigate our system from botnet DDoS attacks. This is achieved by using a through access list based configuration. The artful engineering of malware is a weapon used for online crime and the ideas behind it are profit-motivated. The last section of the chapter provides an understanding of the WannaCry Ransomware Attack which locked computers in more than 150 countries.

scholarly journals A Mathematical Model for Randomly-Occurring Low-Rate Denial of Service Attacks

2014 ◽  
pp. 27-31
Author(s):  
Nahush Chaturvedi ◽  
Hrushikesha Mohanty
Keyword(s):  
Mathematical Model ◽  
Continuous Time ◽  
Transmission Control Protocol ◽  
Denial Of Service ◽  
Denial Of Service Attacks ◽  
Continuous Time Markov Chain ◽  
Dos Attacks ◽  
Transmission Control ◽  
Abnormal State ◽  
Low Rate

Low rate attacks, or Denial-of-Service (DoS) attacks of the occasional misbehaviour, can throttle the throughput of robust timed-protocols, like the Transmission Control Protocol(TCP), by creating either periodic or exponentially distributed outages, or transmission disruptions. Such attacks are as effective as full-fledged DoS with high undetectability of the misbehaving network entity. In this paper, we present a mathematical model of Low-Rate. randomly occurring, Denial-of-Service attacks. By viewing the process as a twostate Continuous-Time Markov Chain(CTMC), we have successfully computed the transition and state probabilities of a compromised network entity that can behave normally, while in the normal state. and abnormally, when in the abnormal state.

scholarly journals A Strategy for Detection and Mitigation of DoS Attacks on Software-Defined Networks

2021 ◽  
Author(s):  
Diogo Mourão de Almeida Pereira ◽  
Joberto S. B. Martins
Keyword(s):  
Computer Networks ◽  
Detection System ◽  
Denial Of Service ◽  
Software Defined Networks ◽  
Security Attacks ◽  
Dos Attacks ◽  
Processing Load ◽  
Network Attacks ◽  
Data Plane ◽  
Syn Flooding

Computer networks support applications in virtually every area of application and knowledge, and as such, they have widely distributed structures and are susceptible to security attacks in general.Software-Defined Networks (SDN), in turn, are a technological solution that has several advantages by separating the control plane from the data plane in the structuring of computer networks. Given this technological difference, software-defined networks are a network implementation paradigm used to mitigate network security attacks. In summary, the use of SDN to mitigate network attacks provides greater flexibility in implementing the attack strategy. However, the separation of control and data planes creates new points of vulnerability for the security of the network operation.The denial of service attack (DoS) of the type Syn-Flooding is one of the most common possible attacks. It can cause, concerning the network, the commitment to perform services and, concerning the operation of the SDN, the commitment in the bandwidth of the communication channel between the control planes and the data plane, the saturation of the ow table in the switch, and the increasing of the processing load in the controller.In general, the investigation about new strategies aimed at safety with SDN becomes necessary to improve security strategies for network attacks and maximize the reliability of SDN operation, allowing use in different application scenarios. This work presents a defense strategy against attacks of DoS Syn-Flooding using the SDN facilities of an integrated controller with an intrusion detection system (IDS).The proposed strategy aims to mitigate Syn-Flooding DoS attacks and the vulnerability arising from the use of SDN to mitigate attacks.

Denial of Service Threat

2011 ◽  
pp. 85-96
Author(s):  
Lech J. Janczewski ◽  
Andrew M. Colarik
Keyword(s):  
Operating System ◽  
Computer Networks ◽  
Denial Of Service ◽  
Foreseeable Future ◽  
Dos Attacks ◽  
System Memory

n the early 1960s, programmers used to play memory games on a computer. The objective of the game was to disable as much of the operating system memory as possible in order to make their opponents unable to run their applications. In those days it was not anticipated that the whole idea would reemerge some 35 years later to become one of the most treacherous concepts in disabling vast computer networks. Denial of Service (DOS) attacks are here to stay for the foreseeable future.

Application Layer Denial-of-Service Attacks and Defense Mechanisms

2021 ◽  
Vol 54 (4) ◽  
pp. 1-33
Author(s):  
Nikhil Tripathi ◽  
Neminath Hubballi
Keyword(s):  
Defense Mechanisms ◽  
Denial Of Service ◽  
Future Research ◽  
Denial Of Service Attacks ◽  
Application Layer ◽  
Dos Attacks ◽  
Protocol Implementation ◽  
Comprehensive Survey

Application layer Denial-of-Service (DoS) attacks are generated by exploiting vulnerabilities of the protocol implementation or its design. Unlike volumetric DoS attacks, these are stealthy in nature and target a specific application running on the victim. There are several attacks discovered against popular application layer protocols in recent years. In this article, we provide a structured and comprehensive survey of the existing application layer DoS attacks and defense mechanisms. We classify existing attacks and defense mechanisms into different categories, describe their working, and compare them based on relevant parameters. We conclude the article with directions for future research.

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