scholarly journals Blockchain Approach to Cyber Security Vulnerabilities Attacks and Potential Countermeasures

2020 ◽  
Vol 14 (1) ◽  
pp. 1-14
Author(s):  
Bosubabu Samban ◽  
Yegireddi Ramesh ◽  
Molli Srinivasa Rao ◽  
T. Chalapathi Rao ◽  
N P Patnaik M
Author(s):  
Wasan Awad ◽  
Hanin Mohammed Abdullah

Developing security systems to protect the storage systems are needed. The main objective of this paper is to study the security of file storage server of an organization. Different kinds of security threats and a number of security techniques used to protect information will be examined. Thus, in this paper, an assessment plan for evaluating cyber security of local storage systems in organizations is proposed. The assessment model is based on the idea of cyber security domains and risk matrix. The proposed assessment model has been implemented on two prestigious and important organizations in the Kingdom of Bahrain. Storage systems of the assessed organizations found to have cyber security risks of different scales. This conclusion gives certainty to the fact that organizations are not capable of following the cyber security evolution and secure their storage systems from cyber security vulnerabilities and breaches. Organizations with local storage systems can improve the cyber security of their storage systems by applying certain techniques.


2018 ◽  
pp. 1609-1623 ◽  
Author(s):  
Shruti Kohli

The modernization of rail control systems has resulted in an increasing reliance on digital technology and increased the potential for security breaches and cyber-attacks. Higher-level European Train Control System(ETCS) systems in particular depend on communications technologies to enable greater automation of railway operations, and this has made the protecting the integrity of infrastructure, rolling stock, staff and passengers against cyber-attacks ever more crucial. The growth in Internet of Things (IoT) technology has also increased the potential risks in this area, bringing with it the potential for huge numbers of low-cost sensing devices from smaller manufacturers to be installed and used dynamically in large infrastructure systems; systems that previously relied on closed networks and known asset identifiers for protection against cyber-attacks. This chapter demonstrates that how existing data resources that are readily available to the railways could be rapidly combined and mapped to physical assets. This work contributes for developing secure reusable scalable framework for enhancing cyber security of rail assets


2020 ◽  
Vol 1 (2) ◽  
pp. 1-12
Author(s):  
Ritu Chauhan ◽  
Gatha Tanwar

The internet of things has brought in innovations in the daily lives of users. The enthusiasm and openness of consumers have fuelled the manufacturers to dish out new devices with more features and better aesthetics. In an attempt to keep up with the competition, the manufacturers are not paying enough attention to cyber security of these smart devices. The gravity of security vulnerabilities is further aggravated due to their connected nature. As a result, a compromised device would not only stop providing the intended service but could also act as a host for malware introduced by an attacker. This study has focused on 10 manufacturers, namely Fitbit, D-Link, Edimax, Ednet, Homematic, Smarter, Osram, Belkin Wemo, Philips Hue, and Withings. The authors studied the security issues which have been raised in the past and the communication protocols used by devices made by these brands. It was found that while security vulnerabilities could be introduced due to lack of attention to details while designing an IoT device, they could also get introduced by the protocol stack and inadequate system configuration. Researchers have iterated that protocols like TCP, UDP, and mDNS have inherent security shortcomings and manufacturers need to be mindful of the fact. Furthermore, if protocols like EAPOL or Zigbee have been used, then the device developers need to be aware of safeguarding the keys and other authentication mechanisms. The authors also analysed the packets captured during setup of 23 devices by the above-mentioned manufacturers. The analysis gave insight into the underlying protocol stack preferred by the manufacturers. In addition, they also used count vectorizer to tokenize the protocols used during device setup and use them to model a multinomial classifier to identify the manufacturers. The intent of this experiment was to determine if a manufacturer could be identified based on the tokenized protocols. The modelled classifier could then be used to drive an algorithm to checklist against possible security vulnerabilities, which are characteristic of the protocols and the manufacturer history. Such an automated system will be instrumental in regular diagnostics of a smart system. The authors then wrapped up this report by suggesting some measures a user can take to protect their local networks and connected devices.


2020 ◽  
Vol 5 (7) ◽  
pp. 785-789
Author(s):  
Job Asheri Chaula ◽  
Godfrey Weston Luwemba

The primary purpose of this research was to assess the adequacy and effectiveness of security control of the Supervisory Control and Data Acquisition (SCADA) communication network used by infrastructure companies. Initially, the SCADA networks were physically separated from other networks connected to the internet and hence assumed secure. However, the modern SCADA are now integrated with other network resulting in new security vulnerabilities and attacks similar to those found in traditional IT. Thus, it is important to reassess the security controls of the SCADA because it is operated in an open network environment. In this research, a case of the SCADA security controls in the power sector in Tanzania was assessed, whereby a specific SCADA implementation was studied. The data were gathered using observation, testing, interviews, questionnaire and documentation reviews. The results were analyzed using the Cyber Security Evaluation Tool (CSET) and checked for compliance based on the National Institute of Standards and Technology (NIST) and North America Electric Reliability Corporation (NERC) standards. The findings have shown that there exist security vulnerabilities both in security compliance of the standard and component-based vulnerabilities. Additionally, there is inadequate of audit and accountability, personnel security and system and information integrity. Also, for the component-based security compliance, the finding shows that identification and authentication, security management and audit and accountability. On the basis of the results, the research has indicated the areas that require immediate action in order to protect the critical infrastructure.


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