Focuses on securing web applications and servers against various cyber threats by implementing proper security controls, secure coding techniques, and understanding how to detect and prevent common web vulnerabilities.
5 minutes
5 Questions
Web Security involves protecting websites, web applications, and associated services from threats targeting web-based systems. For CompTIA Security+ purposes, key components include:
1. HTTPS/TLS: Encrypting connections between clients and servers using certificates to prevent eavesdropping and man-in-the-middle attacks.
2. Content Security Policy (CSP): Controls which resources a browser can load, helping prevent XSS attacks.
3. Cross-Site Scripting (XSS) Prevention: Implementing input validation, output encoding and sanitization to block malicious scripts.
4. Cross-Site Request Forgery (CSRF) Protection: Using anti-CSRF tokens to verify legitimate requests.
5. SQL Injection Defense: Parameterized queries and input validation to prevent database compromise.
6. Cookie Security: Implementing HTTPOnly, Secure flags, and SameSite attributes.
7. Web Application Firewalls (WAF): Filtering malicious traffic before it reaches applications.
8. Authentication Controls: Strong password policies, MFA, and session management.
9. API Security: Properly authenticating, authorizing and validating API requests.
10. Same-Origin Policy: Browser security mechanism restricting how documents from one origin interact with resources from another origin.
11. Subresource Integrity (SRI): Verifying external resources haven't been tampered with.
12. OWASP Top 10 Awareness: Understanding common vulnerabilities like broken access control, security misconfigurations, and injection flaws.
13. Security Headers: X-XSS-Protection, X-Content-Type-Options, and X-Frame-Options to enhance browser security.
14. Input Validation: Checking all user inputs for expected format and content.
15. Regular Security Testing: Vulnerability scanning, penetration testing, and code reviews.
Effective web security requires a defense-in-depth approach combining these technical controls with security-focused development practices and regular monitoring for emerging threats.Web Security involves protecting websites, web applications, and associated services from threats targeting web-based systems. For CompTIA Security+ purposes, key components include:
1. HTTPS/TLS: Encrypting connections between clients and servers using certificates to prevent eavesdropping and ma…
CompTIA Security+ - Web Security Example Questions
Test your knowledge of Web Security
Question 1
A penetration tester has identified a CSRF vulnerability within your web application. Which cookie attribute should you set to prevent attackers from using a user's browser to send unauthorized requests?
Question 2
You're updating your website's security and notice numerous CSRF tokens missing. What method would be best to secure against clickjacking attacks?
Question 3
An attacker has found a way to place content over your website that makes it appear as if it's part of your site. How do you defend against this?
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