Web Application Security
Securing web applications against common vulnerabilities
Web Application Security focuses on protecting web applications from attacks and vulnerabilities that could compromise data, functionality, or availability.
OWASP Top 10
- Broken Access Control - Unauthorized access to resources
- Cryptographic Failures - Weak or missing encryption
- Injection - SQL, NoSQL, OS command injection
- Insecure Design - Flawed architecture and design patterns
- Security Misconfiguration - Default or weak configurations
- Vulnerable Components - Outdated libraries and frameworks
- Authentication Failures - Weak identity verification
- Data Integrity Failures - Untrusted deserialization, CI/CD issues
- Logging Failures - Insufficient monitoring and logging
- SSRF - Server-Side Request Forgery
Security Controls
- Input validation and sanitization
- Output encoding
- Parameterized queries
- Authentication and session management
- Access control implementation
- Security headers (CSP, HSTS, X-Frame-Options)
- TLS/SSL implementation
Testing Approaches
- Static Application Security Testing (SAST)
- Dynamic Application Security Testing (DAST)
- Interactive Application Security Testing (IAST)
- Software Composition Analysis (SCA)
- Manual penetration testing
Tools
- Burp Suite, OWASP ZAP
- SQLMap, Nikto
- SonarQube, Checkmarx
- Snyk, Dependabot
