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CYBR 371 System And Network Security

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CYBR 371 System And Network Security

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CYBR 371 System And Network Security

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Course Code: CYBR371
University: Victoria University Of Wellington

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Country: New Zealand

Question:
Write the Recommendations for mitigating ARP poisoning attack.

Answer:
Network attack with appropriate tools or techniques

IP spoofing attacks –

For this attack Ubuntu is used for conducting the IP spoofing attack and two virtual machine is used as the targeted machine.
Recommendation for the following attacks
Recommendations for mitigating IP Spoofing attack
For the prevention of the IP spoofing attacks it is important to identify the attack and different tools and techniques can be deployed for reducing the threat of IP spoofing attacks such as:
Application of Packet Filtering: the data packets should be inspected when they are transmitted between the different addresses in the network. It can help in preventing the IP spoofing attacks because the conflicting sources of IP address can be blocked and it can be traced for tracing the source of the IP spoofing attack.
Avoidance of trust relationships: The protocols that are dependent on the trust should not be used because it can be used by the attacker for proceeding with the spoof attack. The trust relationship is dependent on the IP address for the establishment of the relationship and thus the IP address is available to the attacker.
Utilizing spoof detection software: Application program can be used for the detection of the spoofing attack. The data that is transmitted are inspected by the spoof detection software and certified. The certification is checked for blocking or allowing the data that seems to be spoofed.
Application of cryptographic network protocol: The transport layer security protocol, secure shell, HTTPS and the other protocols used for communication with the other user can increase the efficiency for the prevention of the spoofing attack. This can be done by encrypting the data before they are sent to the different destination address in the network.
Recommendations for mitigating ARP poisoning attack
The ARP cache poisoning attack is used by the attacker for gaining the access of the victim machine and monitor the communication between the victim device and the device with which the victim is communicating. This is used for viewing the information that is passed between the two devices. There are different solution that can be used for the mitigation of the ARP spoofing attacks such as:
ARP authentication – The ARP protocol is modified for not processing the ARP packets if there is no predefined cryptographic code S-ARP and TARP. But there are some incompatibility issues faced by the device as some the device can operate using standard ARP protocol.  
Patching of the operating system – Patching the operating system would help in prevention of the ARP spoofing and there are different techniques needed for patching the kernels of the operating system. Problem might arise during communication with different kernels and anticap or antidote should be used for resolving the ARP spoofing problems and patching the operating system kernel.
Dynamic ARP inspection – There are some switch that contains security feature such as DAI for stopping spoofing of ARP. It has the ability to intercept the response and the ARP request for dropping all the invalid MAC to IP mapped packets.
ARP mitigation tool – Software tools are used for the mitigation of the ARP spoofing attacks and some of the application can also help in detection of the attack. Some of the example of the ARP mitigation tool are ARP watch, NoCut, AntiARP, etc.
Mapping of the ARP – It is the most efficient approach for the prevention of the ARP spoofing attacks but it cannot be used for large area network where DHCP configuration is used because there is a frequent change of the IP address. NIDPS and DAPS are used for the management of the static entries of the ARP.
Recommendations for mitigating DoS attack
Access control list can be used for the mitigation of the DoS attacks where a set of rules are applied for controlling the permission of accessing the network device. The traffic needs to be monitored and controlled for eliminating the risk of denial of service attacks. The rate limit can also be applied for the implementation of the threshold limit on the traffic flowing in the network. This method is used by the data providers for the protecting their network device from permanent denial of service. How much should enter or go out of the device should be decided by the network administrator and the rate should be dependent on the processing capacity of the server. The combination of the rate limit and the access control mechanism can help in improvement of the effectiveness and blocking the bad traffic and give the full access of the bandwidth to the legitimate traffic. The traffic entering the router should be denied to pass through the router interface and the server response time should be measured for shooting the duration of the attack. The insertion of the command line tool with the use of the SSH protocol can also help in mitigation of the DoS attack. There are different powerful tools developed in Linux platform that are used for communicating with the live application. The scripts are constructed for the management of the interactive system that can run without the interaction of the user. A logical loop should be designed using the shell coding and it is used for maintaining a constant rate of the network traffic for the server.   
Bandwidth monitor can be used for the measurement of the consumption of the bandwidth and analyse the performance of the network. The performance of the network can be analysed based on the response time of the server, download time from the website and the round trip time. A network monitoring tool such as wireshark, PRTG network monitoring tool, etc. can be used for monitoring the network and it should be used for measuring the distributed denial of service. The time curl can be used for the identification of the response time of the server and measuring the time taken by the server for processing the request of the user. The use of Apache benchmarking tool can be a solution for the management of the performance of the Apace HTTP servers. 
Bibliography
Beberlein, L. T., Dias, G., Levitt, K. N., Mukherjee, B., & Wood, J. (2017). Network attacks and an Ethernet-based network security monitor.
Fisher, R., Ledwaba, L., Hancke, G., & Kruger, C. (2015). Open hardware: A role to play in wireless sensor networks?. Sensors, 15(3), 6818-6844.
Gong, M. X., Hart, B., & Mao, S. (2015). Advanced wireless LAN technologies: IEEE 802.11 ac and beyond. GetMobile: mobile computing and communications, 18(4), 48-52.
Knapp, E. D., & Langill, J. T. (2014). Industrial Network Security: Securing critical infrastructure networks for smart grid, SCADA, and other Industrial Control Systems. Syngress.
Lee, I. E., Guo, Y., Ng, T. K., Park, K. H., Alouini, M. S., & Ooi, B. S. (2017, July). Bandwidth enhancement of wireless optical communication link using a near-infrared laser over turbid underwater channel. In Lasers and Electro-Optics Pacific Rim (CLEO-PR), 2017 Conference on (pp. 1-5). IEEE.
Mansfield-Devine, S. (2015). The growth and evolution of DDoS. Network Security, 2015(10), 13-20.
Stallings, W. (2017). Cryptography and network security: principles and practice (p. 743). Upper Saddle River, NJ: Pearson.
White, G. B., Fisch, E. A., & Pooch, U. W. (2017). Computer system and network security. CRC press.
Wu, Y., Qian, L., Mao, H., Lu, W., Zhou, H., & Yu, C. (2017, September). Joint Channel Bandwidth and Power Allocations for Downlink Non-Orthogonal Multiple Access Systems. In Vehicular Technology Conference (VTC-Fall), 2017 IEEE 86th(pp. 1-5). IEEE.
Zaalouk, A., Khondoker, R., Marx, R., & Bayarou, K. (2014, May). Orchsec: An orchestrator-based architecture for enhancing network-security using network monitoring and sdn control functions. In Network Operations and Management Symposium (NOMS), 2014 IEEE (pp. 1-9). IEEE.

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