Application Security

Security

Secure Development Lifecycle (SDLC)

Security-Integrated Development Process

Planning: Security requirements, threat modeling
Design: Secure architecture, security controls
Implementation: Secure coding, code reviews
Testing: Security testing, vulnerability assessment
Deployment: Secure configuration, monitoring
Maintenance: Patch management, security updates

DevSecOps Integration

Shift Left: Early security integration
Automation: Automated security testing in CI/CD
Collaboration: Development, security, and operations teams
Continuous Monitoring: Runtime security analysis

Threat Modeling

Methodologies

STRIDE (Microsoft)

Spoofing: Identity falsification
Tampering: Data modification
Repudiation: Denying actions
Information Disclosure: Unauthorized data access
Denial of Service: System availability attacks
Elevation of Privilege: Unauthorized access level increase

PASTA (Process for Attack Simulation and Threat Analysis)

Risk-Centric: Focus on business risk
Seven-Stage Process: From strategy to vulnerability analysis
Scalable: Adaptable to different organization sizes

OCTAVE (Operationally Critical Threat, Asset, and Vulnerability Evaluation)

Organizational Focus: Business impact assessment
Asset-Centric: Identify and protect critical assets
Self-Directed: Organization-led assessment

Secure Coding Practices

Input Validation

Whitelist Approach: Accept only known good input
Data Type Validation: Ensure proper format and range
Encoding: Prevent injection attacks
Sanitization: Remove or escape dangerous characters

Authentication and Session Management

Multi-Factor Authentication: Something you know, have, are
Strong Session Management: Secure tokens, proper timeouts
Password Security: Hashing, salting, complexity requirements
Account Lockout: Prevent brute force attacks

Error Handling

Information Disclosure: Avoid revealing system details
Logging: Record security events without sensitive data
User Experience: Helpful messages without security risks