Security Testing Interview Questions

Security testing involves: 1) Testing authentication mechanisms, 2) Verifying authorization controls, 3) Testing input validation, 4) Checking data protection, 5) Testing against common vulnerabilities. Important for ensuring application security and protecting user data.

Authentication testing includes: 1) Testing login functionality, 2) Verifying token handling, 3) Testing session management, 4) Checking password policies, 5) Testing multi-factor authentication. Example: test invalid credentials, token expiration.

Authorization testing practices: 1) Test role-based access, 2) Verify permission levels, 3) Check resource access, 4) Test access denial, 5) Verify resource isolation. Ensures proper access control.

Input validation testing: 1) Test for XSS attacks, 2) Check SQL injection, 3) Validate data formats, 4) Test boundary conditions, 5) Check sanitization. Prevents malicious input.

Common patterns include: 1) Authentication testing, 2) Authorization checks, 3) Input validation, 4) Session management, 5) Data protection testing. Forms basis of security testing.

Session testing involves: 1) Test session creation, 2) Verify session expiration, 3) Check session isolation, 4) Test concurrent sessions, 5) Verify session invalidation.

CSRF testing includes: 1) Verify token presence, 2) Test token validation, 3) Check token renewal, 4) Test request forgery scenarios, 5) Verify protection mechanisms.

Password security testing: 1) Test password policies, 2) Check hashing implementation, 3) Verify password reset, 4) Test password change, 5) Check against common vulnerabilities.

Encryption testing: 1) Verify data encryption, 2) Test key management, 3) Check encrypted storage, 4) Test encrypted transmission, 5) Verify decryption process.

Security error testing: 1) Test error messages, 2) Check information disclosure, 3) Verify error logging, 4) Test error recovery, 5) Check security breach handling.

API security testing: 1) Test authentication, 2) Verify rate limiting, 3) Check input validation, 4) Test error handling, 5) Verify data protection. Ensures secure API endpoints.

OAuth testing includes: 1) Test authorization flow, 2) Verify token handling, 3) Check scope validation, 4) Test token refresh, 5) Verify client authentication.

JWT security testing: 1) Verify token signing, 2) Test token validation, 3) Check expiration handling, 4) Test payload security, 5) Verify token storage.

RBAC testing: 1) Test role assignments, 2) Verify permission inheritance, 3) Check access restrictions, 4) Test role hierarchy, 5) Verify role changes.

Secure communication testing: 1) Test SSL/TLS, 2) Verify certificate validation, 3) Check protocol security, 4) Test secure headers, 5) Verify encryption.

File upload security: 1) Test file validation, 2) Check file types, 3) Verify size limits, 4) Test malicious files, 5) Check storage security.

Data validation testing: 1) Test input sanitization, 2) Check type validation, 3) Verify format checking, 4) Test boundary values, 5) Check validation bypass.

Security header testing: 1) Verify CORS headers, 2) Check CSP implementation, 3) Test XSS protection, 4) Verify HSTS, 5) Test frame options.

Secure storage testing: 1) Test data encryption, 2) Verify access control, 3) Check data isolation, 4) Test backup security, 5) Verify deletion.

Security logging tests: 1) Verify audit trails, 2) Check log integrity, 3) Test log access, 4) Verify event logging, 5) Test log rotation.

Advanced pen testing: 1) Test injection attacks, 2) Check vulnerability chains, 3) Test security bypasses, 4) Verify defense depth, 5) Test attack vectors.

Fuzzing implementation: 1) Generate test cases, 2) Test input handling, 3) Check error responses, 4) Verify system stability, 5) Test edge cases.

Compliance testing: 1) Test regulation requirements, 2) Verify security controls, 3) Check audit capabilities, 4) Test data protection, 5) Verify compliance reporting.

Incident response testing: 1) Test detection systems, 2) Verify alert mechanisms, 3) Check response procedures, 4) Test recovery processes, 5) Verify incident logging.

Security monitoring tests: 1) Test detection capabilities, 2) Verify alert systems, 3) Check monitoring coverage, 4) Test response time, 5) Verify data collection.

Regression testing: 1) Test security fixes, 2) Verify vulnerability patches, 3) Check security updates, 4) Test system hardening, 5) Verify security baselines.

Architecture testing: 1) Test security layers, 2) Verify security boundaries, 3) Check security controls, 4) Test integration points, 5) Verify defense mechanisms.

Configuration testing: 1) Test security settings, 2) Verify hardening measures, 3) Check default configs, 4) Test config changes, 5) Verify secure defaults.

Isolation testing: 1) Test component isolation, 2) Verify resource separation, 3) Check boundary controls, 4) Test isolation bypass, 5) Verify containment.

Threat model testing: 1) Test identified threats, 2) Verify mitigation controls, 3) Check attack surfaces, 4) Test security assumptions, 5) Verify protection measures.