MitM Attacks and IoT Security: A Case Study on MQTT

Year 2023, Volume: 3 Issue: 2, 99 - 106, 15.12.2023

Serhat Çelik Nesibe Yalçın Semih Çakır

Abstract

The number of devices connected to the Internet has increased with the development of Internet of Things (IoT) technologies. It is foreseen that this situation will increase daily, and the concept of the IoT will become more popular. However, security vulnerabilities in IoT devices have not been eliminated, and these devices are vulnerable to attacks because their resource-limited features increase security concerns. The security problem of the Message Queuing Telemetry Transport (MQTT) protocol, which is widely used in the IoT field, is of great importance. In this study, a smart-home system application that provides communication between devices using the MQTT protocol has been developed. A Man in the Middle (MitM) attack, which is one of the first attacks that come to mind when it comes to privacy violation, was carried out, targeting data packets between users with a temperature sensor used in the application.

Keywords

IoT Security, Attack Detection, MitM Attacks, IoT, MQTT

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