Monitoramento da cibersegurança em gateways LoRa

Abstract

The number of IoT devices has been growing considerably and has been commonly applied in the daily life of various sectors of today’s society, such as health, agriculture, industrial, domestic environments, among others. However, IoT devices have low computational capacity and therefore have limited processing and memory compared to conventional computers. Consequently, there are hardware limitations that also limit the security of these devices. For these reasons, IoT devices have cybersecurity vulnerabilities, which makes them potential targets for malicious attacks. This work aims to analyze the security of environments that have IoT devices, to avoid or mitigate malicious attacks. To achieve this goal, a network scenario was implemented that is composed of a set of security mechanisms: network traffic monitoring through NIDS, host monitoring with HIDS, and some recommendations to obtain more secure environments. In addition, a survey was conducted to investigate the malicious attacks that occur in IoT networks. The aim was to study the nature of these attacks, identify their vulne rabilities, and analyze the underlying patterns that lead to such problems. Among the security mechanisms addressed in this work, the focus is on network traffic monitoring using Snort because it is an open source technology, as well as the monitoring of hosts using OSSEC, and this network scenario was implemented in IoT networks, more specifically in a LoRa gateway, seeking to obtain answers regarding the effectiveness of the IDS. The results obtained from this work through the logs show that network monitoring tools (Snort) and host monitoring tools (OSSEC) are able to assist in the detection of anomalies or malicious actions that occur in these environments. The information obtained from the monitoring allows a better understanding of the security and integrity of the analyzed system. In conclusion, the implementation of an IDS, using Snort and OSSEC, proved to be efficient in monitoring and detecting potential threats and security breaches in the gateway LoRa. With this, a better understanding of cybersecurity in IoT networks and devices is obtained, as well as making them more secure.