What is the time-of-check to time-of-use (TOCTOU) vulnerability and how does it differ from a typical race condition? Provide an example to illustrate this distinction.
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What is the time-of-check to time-of-use (TOCTOU) vulnerability and how does it differ from a typical
race condition? Provide an example to illustrate this distinction.
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- Within the context of Network/Information security, AAA stands for: a. Authentication, Authorization, Accounting b. Accessibility, Availability, Accountability c. Accounting, Accreditation, Authorization d. Authorization, Access Control, AvailabilityThe production of an alarm for each action is the first step in the operation of one category of intrusion detection system (IDS). Over time, the administrator will make adjustments to the settings of the intrusion detection system (IDS) to guarantee that normal, harmless actions will not send off alerts. What are the advantages of employing this style for an IDS, and what are the disadvantages?TASK 01 (SHODAN)•For this assignment you will have to do some observation task on some vulnerabilities that can be exploited to attack ICS security.•Remember: ONLY OBSERVE for study purpose. UNITEN will not be responsible for your experimentation beyond the required task.Search for potential location of ICS devices•Use Shodan website•Search for location that is linked to port 102 in Malaysia•Note how many are there in Malaysia1.Find out what all those displayed information mean from the search. Explain it in your report. [5 marks]2.Use the map in SHODAN to actually find out where these location actually is. [2 marks]3.Cross check with google map if the location is actually real. List at least TWO detailed address and information found through SHODAN, [3 marks]4.Extra bonus marks: Find out other port number that might be used by ICS device and perform a search. List them out and perform the same test. Write the same report of your findings. TASK 02 (GOOGLE HACKING)•For this assignment…
- You have just joined an organization as a Security Analyst. As a security Analyst you are responsible for managing Firewall security policies in your organization. When you joined, your organization's firewall policy was already managed by some previous employee. What will be the first step you will take to ensure that there are no policy violations or anomalies? Following are the set of rules in organizational firewall: Note make sure you want to have minimum number of rules and rearrange them in a way that there is no policy anomaly. 192.168.* 80 192.168.0.10 80 FTP Deny 192.168.0.* 80 192.168.0.10 80 FTP Аcсept 192.168.0.1 80 192.168.0.10 80 FTP Accept 192.168.0.2 80 192.168.0.10 80 FTP Ассept 192.168.0.3 80 192.168.0.10 80 FTP Аcсept EEEEEThe phrase "Firewall vulnerability exploit" might be a little confusing, so could you perhaps explain what it means?Suggest two possible vulnerabilities and when login/password authentication is used. How might each vulnerability be mitigated?
- What are some common security setup issues, and how may they be fixed?Explain the definition of the word "firewall" as it relates to network security, as well as its use in a variety of network topologies, and justify its need.One kind of IDS's activity starts with the creation of an alert for each action. The IDS settings are changed over time by the administrator to ensure that typical, harmless activities do not send off alerts. What are the advantages and disadvantages of adopting this design for an IDS?
- Choose an ICMP-based attack, clearly describe it, and provide a solution.5) Explain two outcomes an attacker may aim for with a Buffer overflow attack. Sketch how and why a Buffer overflow attack works. You do not need to write code but can if it helps you to explain. 6) Explain what a Trojan Horse is. Describe two distinct methods of identifying a Trojan Horse and explain when and why each of those methods might be appropriate. 7) What is a honeypot? What role might it play in the detection and management of intrusions? Give an example to illustrate how particular data within a real system might be considered to be a honeytoken.You've just started working as a Security Analyst for a new company. As a security analyst, you're in charge of overseeing your company's Firewall security rules. Your company's firewall policy was already in place when you started working there, thanks to a prior employee. In order to avoid policy breaches or anomalies, what would be your initial step?
