CS0-003 Online Practice Questions and Answers

Correct Answer: D

The first action that should be completed to remediate the findings is to perform proper sanitization on all fields. Sanitization is a process that involves validating, filtering, or encoding any user input or data before processing or storing it on a system or application. Sanitization can help prevent various types of attacks, such as cross-site scripting (XSS), SQL injection, or command injection, that exploit unsanitized input or data to execute malicious scripts, commands, or queries on a system or application. Performing proper sanitization on all fields can help address the most critical and common vulnerability found during the vulnerability assessment, which is XSS.

Correct Answer: B

1.

Preventive Control: Preventive controls are measures designed to prevent security incidents from occurring in the first place. By ensuring that new systems are built with the required security configurations from the outset, the company can significantly reduce the risk of configuration errors leading to security incidents.

2.

Corrective Control: While corrective controls (Option A) address issues after they have been identified, the goal here is to prevent the issues from occurring at all.

3.

Detective Control: Detective controls (Option C) help in identifying issues after they occur, but they do not prevent the issues from happening in the first place.

4.

Managerial Control: Managerial controls (Option D) focus on policy, documentation, and oversight. While important, they do not directly address the prevention of incorrect configurations. Ensuring that systems are correctly configured from the beginning is a proactive approach to reducing the risk of security incidents caused by configuration errors.

Correct Answer: C

https://www.examtopics.com/discussions/comptia/view/84935-exam-cs0-002-topic-1-question-191-discussion/

Correct Answer: B

The BEST solution to remedy the cross-site scripting vulnerability on the company's website is option B, server-side input validation.

Server-side input validation involves checking user input on the server side to ensure that it meets expected criteria before it is processed or stored. This can prevent malicious code from being injected into the website and reduce the risk of cross-site scripting attacks.

Correct Answer: A

Correct Answer: B

Since the proxy is not in use and has a critical vulnerability with a high CVSS score, the best course of action is to decommission the proxy. Patching the proxy might be an option if it were actively being used and could not be replaced, but since a new proxy is already in place, decommissioning is the most appropriate action.

Correct Answer: A

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Correct Answer: C

The impact metric is the best way to measure the degree to which a system, application, or user base is affected by an uptime availability outage. The impact metric quantifies the consequences of the outage in terms of lost revenue, productivity, reputation, customer satisfaction, or other relevant factors. The impact metric can help prioritize the recovery efforts and justify the resources needed to restore the service.The other options are not the best ways to measure the degree to which a system, application, or user base is affected by an uptime availability outage. The timeline metric (A) measures the duration and frequency of the outage, but not its effects. The evidence metric (B) measures the sources and types of data that can be used to investigate and analyze the outage, but not its effects. The scope metric (D) measures the extent and severity of the outage, but not its effects.

Correct Answer: A

A disaster recovery exercise is a simulation or a test of the disaster recovery plan, which is a set of procedures and resources that are used to restore the normal operations of an organization after a disaster or a major incident. The goal of a disaster recovery exercise is to provide metrics and test continuity controls, which are the measures that ensure the availability and resilience of the critical systems and processes of an organization. A disaster recovery exercise can help evaluate the effectiveness, efficiency, and readiness of the disaster recovery plan, as well as identify and address any gaps or issues . The other options are not the best descriptions of the goal of a disaster recovery exercise. Verifying the roles of the incident response team (B) is a goal of an incident response exercise, which is a simulation or a test of the incident response plan, which is a set of procedures and roles that are used to detect, contain, analyze, and remediate an incident. Providing recommendations for handling vulnerabilities ?is a goal of a vulnerability assessment, which is a process of identifying and prioritizing the weaknesses and risks in an organization's systems or network. Performing tests against implemented security controls (D) is a goal of a penetration test, which is an authorized and simulated attack on an organization's systems or network to evaluate their security posture and identify any vulnerabilities or misconfigurations.

Correct Answer: C

The malicious activity that was most likely attempted is SSRF (Server-Side Request Forgery). This is a type of attack that exploits a vulnerable web application to make requests to other resources on behalf of the web server. In this case, the attacker tried to use the fopen function to access the local loopback address (127.0.0.1) on port 16, which could be a service that is not intended to be exposed to the public. The connection was refused, indicating that the port was closed or filtered. References: CompTIA CySA+ Study Guide: S0-003, 3rd Edition, Chapter 2: Software and Application Security, page 66.