Rhett, a security professional at an organization, was instructed to deploy an IDS solution on their corporate network to defend against evolving threats. For this purpose, Rhett selected an IDS solution that first creates models for possible intrusions and then compares these models with incoming events to make detection decisions.
Identify the detection method employed by the IDS solution in the above scenario.
Correct Answer:
C
Anomaly detection is a type of IDS detection method that involves first creating models for possible intrusions and then comparing these models with incoming events to make a detection decision. It can detect unknown or zero-day attacks by looking for deviations from normal or expected behavior
George, a security professional at an MNC, implemented an Internet access policy that allowed employees working from a remote location to access any site, download any application, and access any computer or network without any restrictions. Identify the type of Internet access policy implemented by George in this scenario.
Correct Answer:
A
Permissive policy is the type of Internet access policy implemented by George in this scenario. An Internet access policy is a policy that defines the rules and guidelines for accessing the Internet from a system or network. An Internet access policy can be based on various factors, such as security, productivity, bandwidth, etc. An Internet access policy can have different types based on its level of restriction or control. A permissive policy is a type of Internet access policy that allows users to access any site, download any application, and access any computer or network without any restrictions. A permissive policy can be used to provide maximum flexibility and freedom to users, but it can also pose significant security risks and challenges. In the scenario, George implemented an Internet access policy that allowed employees working from a remote location to access any site, download any application, and access any computer or network without any restrictions. This means that he implemented a permissive policy for those employees. A paranoid policy is a type of Internet access policy that blocks or denies all Internet access by default and only allows specific sites, applications, or computers that are explicitly authorized. A prudent policy is a type of Internet access policy that allows most Internet access but blocks or restricts some sites, applications, or computers that are deemed inappropriate, malicious, or unnecessary. A promiscuous policy is not a type of
Internet access policy, but a term that describes a network mode that allows a network interface card (NIC) to capture all packets on a network segment, regardless of their destination address.
The incident handling and response (IH&R) team of an organization was handling a recent cyberattack on the organization's web server. Fernando, a member of the IH&P team, was tasked with eliminating the root cause of the incident and closing all attack vectors to prevent similar incidents in future. For this purpose. Fernando applied the latest patches to the web server and installed the latest security mechanisms on it. Identify the IH&R step performed by Fernando in this scenario.
Correct Answer:
D
Eradication is the IH&R step performed by Fernando in this scenario. Eradication is a step in IH&R that involves eliminating the root cause of the incident and closing all attack vectors to prevent similar incidents in future. Eradication can include applying patches, installing security mechanisms, removing malware, restoring backups, or reformatting systems.
References: [Eradication Step in IH&R]
Tristan, a professional penetration tester, was recruited by an organization to test its network infrastructure. The organization wanted to understand its current security posture and its strength in defending against external threats. For this purpose, the organization did not provide any information about their IT infrastructure to Tristan. Thus, Tristan initiated zero-knowledge attacks, with no information or assistance from the organization.
Which of the following types of penetration testing has Tristan initiated in the above scenario?
Correct Answer:
A
Black-box testing is a type of penetration testing where the tester has no prior knowledge of the target system or network and initiates zero-knowledge attacks, with no information or assistance from the organization. Black-box testing simulates the perspective of an external attacker who tries to find and exploit vulnerabilities without any insider information. Black-box testing can help identify unknown or hidden vulnerabilities that may not be detected by other types of testing. However, black-box testing can also be time-consuming, costly, and incomplete, as it depends on the tester’s skills and tools.
Kayden successfully cracked the final round of interviews at an organization. After a few days, he received his offer letter through an official company email address. The email stated that the selected candidate should respond within a specified time. Kayden accepted the opportunity and provided an e-signature on the offer letter, then replied to the same email address. The company validated the e-signature and added his details to their database. Here, Kayden could not deny the company's message, and the company could not deny Kayden's signature.
Which of the following information security elements was described in the above scenario?
Correct Answer:
B
The correct answer is B, as it describes the information security element that was described in the above scenario. Non-repudiation is an information security element that ensures that a party cannot deny sending or receiving a message or performing an action. In the above scenario, non-repudiation was described, as Kayden could not deny company’s message, and company could not deny Kayden’s signature. Option A is incorrect, as it does not describe the information security element that was described in the above scenario. Availability is an information security element that ensures that authorized users can access and use information and resources when needed. In the above scenario, availability was not described, as there was no mention of access or use of information and resources. Option C is incorrect, as it does not describe the information security element that was described in the above scenario. Integrity is an information security element that ensures that information and resources are accurate and complete and have not been modified by unauthorized parties. In the above scenario, integrity was not described, as there was no mention of accuracy or completeness of information and resources. Option D is incorrect, as it does not describe the information security element that was described in the above scenario. Confidentiality is an information security element that ensures that information and resources are protected from unauthorized access and disclosure. In the above scenario, confidentiality was not described, as there was no mention of protection or disclosure of information and resources.
References: , Section 3.1