Web Security

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…