![]() ![]() At the same time, password matching/theft holding is among the popular attacks as the intruders attack the IoT network. ![]() Unfortunately, in terms of security, the FTP server at a gateway or data sink very often is improperly set up. Collected data are usually transmitted from the gateway to a data/application server using the FTP protocol. Įnd nodes (sensors/devices) are attached to IoT networks and communicate with a data/application server through a gateway. Moreover, the evolution from limited access and closed networks to open ones increased the requirement for security alerts to protect all the devices in an IoT network from intrusions. Nevertheless, the IoT network is constrained by several new factors such as huge numbers of devices and objects that may interact together in a complex manner, using different security techniques. The reason is that IoT is as an extension of the classical Internet framework and technology. ![]() IntroductionĮarlier security protocols should be pertinent to IoT to assure basic security services including authentication, confidentiality, integrity, nonrepudiation, access control, and availability. Experimental results validate the investigation. The experiments use the IoT network testbed that mimic the internal attack scenario with three major goals: (i) to provide a topological description on how an insider attack occurs (ii) to achieve attack pattern extraction from raw sniffed data and (iii) to establish attack pattern identification as a parameter to visualize real-time attacks. An insider/internal attack launched from an internal network endangers more the entire IoT security system. The investigation focuses on attacks launched from the internal network, due to the assumption that the IoT network has already installed a firewall. This paper investigates brute force attack (BFA) on the FTP server of the IoT network by using a time-sensitive statistical relationship approach and visualizing the attack patterns that identify its configurations. Thus, this paper attempts to provide an insight of this type of attack with the main aim of coming up with attack patterns that may help the IoT system administrator to analyze any similar attacks. Internet of Things (IoT) devices may transfer data to the gateway/application server through File Transfer Protocol (FTP) transaction. ![]()
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