GIAC Foundational Cybersecurity Technologies Practice Test

What is the best way to mitigate a file inclusion attack?

1. Avoid dynamically adding files based on user input

2. Update the server software regularly

3. Implement strict account management policies

4. Use strong passwords for all accounts

The correct answer is: Avoid dynamically adding files based on user input

Mitigating a file inclusion attack primarily revolves around controlling how files are included in an application, especially when user input is involved. Avoiding the dynamic addition of files based on user input minimizes the risk of attackers exploiting vulnerabilities in the application to include malicious files or scripts. This proactive approach ensures that only predefined, safe files are loaded, preventing the execution of unauthorized code that could lead to security breaches. While other measures, such as regularly updating server software or enforcing strict account management policies, contribute to the overall security posture by addressing different aspects of vulnerability and security hygiene, they do not specifically address the root cause of file inclusion vulnerabilities. Similarly, employing strong passwords enhances account security but does not directly prevent the exploitation of file inclusion flaws. Therefore, minimizing reliance on user input for file inclusion is the most effective and targeted strategy against such attacks.