Evaluación del Firewall de Frontera Free Pfsense para proteger la confidencialidad, integridad y disponibilidad de la información de compañías de responsabilidad limitada en Riobamba año 2021.

Abstract

The objective of the research was to evaluate the security conditions that the Limited Liability Companies of the city of Riobamba have within their LAN network through surveys applied to sixty-four of them, most of which do not have security elements, they are connected to the ISP server or internet provider directly, this is probably due to the high cost in Firewall licensing. Likewise, the performance of the free software PfSense Firewall was evaluated, to which different tests were applied using Kali Linux 2021.2 and its tools such as nmap together with NESSUS, web EICAR to identify the security level of the Firewall. Tests were run on the Antivirus, IDS, IPS, Proxy, a vulnerability and port scan was run with the help of web EICAR Test to download malicious files. PfSense Firewall configurations were applied according to Netgate Doc manuals obtained from the official website, all security modules worked together without any problem. For hypothesis testing, Chi-Square was applied with a confidence level of 0.05. The indicators were the Probability of Threat versus the Magnitude of Damage, which were valued with a scale from one to four, being four the highest level of Probability of Threat and Magnitude of Damage, to find the final value these two were multiplied giving as a result the level of Risk, which was valued and compared with the following scale: if the result is between 1 and 6 the risk is low, between 8 and 9 medium risk, between 12 and 16 high risk. According to the results obtained we can say that, implementing the PfSense Firewall significantly reduces the Probability of Threat and Magnitude of Damage, we can conclude that, the use of the PfSense Firewall improves the security, integrity, and confidentiality of the information that the company has limits, we recommend the use of this software within the LAN network of the Limited Liability Companies of the City of Riobamba or other entities that need to strengthen computer security.