Abstract
Smart devices along with sensors are gaining in popularity with the promise of making life easier for the owner. As the number of sensors in an Internet of Things (IoT) system grows, a question arises as to whether the transmission between the sensors and the IoT devices is reliable and whether the user receives alerts correctly and in a timely manner. Increased deployment of IoT devices with sensors increases possible safety risks. It is IoT devices that are often misused to create Distributed Denial of Service (DDoS) attacks, which is due to the weak security of IoT devices against misuse. The article looks at the issue from the opposite point of view, when the target of a DDoS attack are IoT devices in a smart home environment. The article examines how IoT devices and the entire smart home will behave if they become victims of a DDoS attack aimed at the smart home from the outside. The question of security was asked in terms of whether a legitimate user can continue to control and receive information from IoT sensors, which is available during normal operation of the smart home. The case study was done both from the point of view of the attack on the central units managing the IoT sensors directly, as well as on the smart-home personal assistant systems, with which the user can control the IoT sensors. The article presents experimental results for individual attacks performed in the case study and demonstrates the resistance of real IoT sensors against DDoS attack. The main novelty of the article is that the implementation of a personal assistant into the smart home environment increases the resistance of the user’s communication with the sensors. This study is a pilot testing the selected sensor sample to show behavior of smart home under DDoS attack.
Highlights
Internet of Things (IoT) devices are becoming common in everyday life
The measured results for the SYN flood attack for all performed experiments listed in Table 1 showed unrestricted communication during the Distributed Denial of Service (DDoS) attack, i.e., the user could continuously control the sensor through the selected application
DDoS attacks were based on two types of attacks, namely SYN flood attack and HTTP Get flood attack, which flooded the IoT device with a number of packets in order to overwhelm the IoT device and prevent communication with IoT sensors
Summary
Internet of Things (IoT) devices are becoming common in everyday life. Using a variety of sensors, they routinely provide and collect a variety of household information. Their ubiquitous connectivity, as well as their ability to communicate with each other or to trigger action on the event due to the sensed data from the sensors, increase their popularity. IoT devices simplify and automate everyday tasks, they bring security vulnerabilities. Because the security measures used to protect IoT devices are still not sufficient, IoT devices are becoming a possible point through which an attacker can penetrate and attack the smart home environment infrastructure. Attacks can cause various effects such as damage to hardware, disruption of system availability, cause system outages, and even physically harm individuals
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