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209. Frage
A security analyst is reviewingsuspicious log-in activity and sees the following data in the SICM:
Which of the following is the most appropriate action for the analyst to take?
Antwort: B
Begründung:
The log-in activity indicates a security threat, particularly involving the ADMIN account with a high-risk failure status. This suggests that the account may be targeted by malicious activities such as credential stuffing or brute force attacks.
Updating log configuration settings (A) may help in better logging future activities but does not address the immediate threat.
Changing the admin account password (B) is a good practice but may not fully mitigate the ongoing threat if the account has already been compromised.
Blocking employees (C) from logging into non-business applications might help in reducing attack surfaces but doesn't directly address the compromised account issue.
Implementing automation to disable accounts associated with high-risk activities ensures an immediate response to the detected threat, preventing further unauthorized access and allowing time for thorough investigation and remediation.
References:
CompTIA SecurityX guide on incident response and account management.
Best practices for handling compromised accounts.
Automation tools and techniques for security operations centers (SOCs).
210. Frage
A programmer is reviewing the following proprietary piece of code that was identified as a vulnerability due to users being authenticated when they provide incorrect credentials:
Which of the following should the programmer implement to remediate the code vulnerability?
Antwort: A
Begründung:
The code vulnerability stems from improper handling of user input in the authentication process.
In the first two lines, the code retrieves the USERID and PASS inputs, but there is no validation or sanitation of these inputs before they are processed.
By implementing input validation in these initial lines of code, the programmer can ensure that only properly formatted and expected data is passed into the authentication logic. This prevents malicious input, such as SQL injection or other forms of manipulation, which could allow incorrect credentials to be accepted and cause authentication issues. Input validation ensures that the inputs meet specific criteria (e.g., expected length, character set), which mitigates the risk of such vulnerabilities.
211. Frage
A Chief Information Security Officer (CISO) is concerned that a company's current data disposal procedures could result in data remanence. The company uses only SSDs. Which of the following would be the most secure way to dispose of the SSDs given the CISO's concern?
Antwort: B
212. Frage
An organization has been using self-managed encryption keys rather than the free keys managed by the cloud provider. The Chief Information Security Officer (CISO) reviews the monthly bill and realizes the self-managed keys are more costly than anticipated. Which of the following should the CISO recommend to reduce costs while maintaining a strong security posture?
Antwort: D
Begründung:
Step by Step
Understanding the Scenario: Theorganization is using customer-managed encryption keys in the cloud, which is more expensive than using the cloud provider's free managed keys. The CISO needs to find a way to reduce costs without significantly weakening the security posture.
Analyzing the Answer Choices:
A . Utilize an on-premises HSM to locally manage keys: While on-premises HSMs offer strong security, they introduce additional costs and complexity (procurement, maintenance, etc.). This option is unlikely to reduce costs compared to cloud-based key management.
B . Adjust the configuration for cloud provider keys on data that is classified as public: This is the most practical and cost-effective approach. Data classified as public doesn't require the same level of protection as sensitive data. Using the cloud provider's free managed keys for public data can significantly reduce costs without compromising security, as the data is intended to be publicly accessible anyway.
Reference:
C . Begin using cloud-managed keys on all new resources deployed in the cloud: While this would reduce costs, it's a broad approach that doesn't consider the sensitivity of the data. Applying cloud-managed keys to sensitive data might not be acceptable from a security standpoint.
D . Extend the key rotation period to one year so that the cloud provider can use cached keys: Extending the key rotation period weakens security. Frequent key rotation is a security best practice to limit the impact of a potential key compromise.
Why B is the Correct answer:
Risk-Based Approach: Using cloud-provider-managed keys for public data is a reasonable risk-based decision. Public data, by definition, is not confidential.
Cost Optimization: This directly addresses the CISO's concern about cost, as cloud-provider-managed keys are often free or significantly cheaper.
Security Balance: It maintains a strong security posture for sensitive data by continuing to use customer-managed keys where appropriate, while optimizing costs for less sensitive data.
CASP+ Relevance: This approach demonstrates an understanding of risk management, data classification, and cost-benefit analysis in security decision-making, all of which are important topics in CASP+.
Elaboration on Data Classification:
Data Classification Policy: Organizations should have a clear data classification policy that defines different levels of data sensitivity (e.g., public, internal, confidential, restricted).
Security Controls Based on Classification: Security controls, including encryption key management, should be applied based on the data's classification level.
Cost-Benefit Analysis: Data classification helps organizations make informed decisions about where to invest in stronger security controls and where cost optimization is acceptable.
In conclusion, adjusting the configuration to use cloud-provider-managed keys for data classified as public is the most effective way to reduce costs while maintaining a strong security posture. It's a practical, risk-based approach that aligns with data classification principles and cost-benefit considerations, all of which are important concepts covered in the CASP+ exam objectives.
213. Frage
A security analyst is reviewing a SIEM and generates the following report:
Later, the incident response team notices an attack was executed on the VM001 host. Which of the following should the security analyst do to enhance the alerting process on the SIEM platform?
Antwort: C
Begründung:
The SIEM already contains multiple events that, if correlated, would have indicated an active attack sequence on VM001-such as denied connections, IPS alerts, malware detection, and then an allowed connection. CAS-005 Security Operations objectives emphasize log correlation as a way to enhance detection by linking related events across different time stamps and data sources into a single, higher-confidence alert.
Option A (adding EDR logs) could add visibility but does not address the need to connect existing events for earlier detection.
Option C (improving parsing) ensures readability but does not create actionable alerts.
Option D (creating a new malware detection rule) is redundant since malware detection already appeared in logs; the issue was the lack of correlation to act on it in time.
By correlating IDS, IPS, firewall, and malware detection logs, the SIEM can raise a higher-priority alert before the attack is completed.
214. Frage
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