OWASP API Security TOP 10: A comprehensive guide

Map web app architecture from client to database, highlight http/https ports and the DMZ, and introduce the triad, triple A, and the OWASP top ten risks.

Explore how OWASP top ten and the OWASP API security top ten guide developers to address critical vulnerabilities like broken object level authorization and SRF, with updates and mitigation insights.

Explore broken object level authorization (bola) and how improper access checks lead to data exposure, then learn defenses like server-side authorization, UUIDs, least privilege, and API gateways.

Explore broken authentication by examining weak session management, plain text passwords, and exposed session IDs, and learn mitigations like strong authentication, session timeouts, server-side checks, and multifactor authentication.

Learn the difference between broken object level authorization and broken object property level authorization, and implement fine-grained, server-side checks with data filtering to prevent oversharing.

Learn how unrestricted resource consumption causes resource exhaustion, with practical examples of lack of resource limits and insufficient rate limiting, and how to mitigate with rate limits, caps, and monitoring.

Explore broken function level authorization, a top five owasp api security risk, caused by weak role checks and exposed admin endpoints. Strengthen security with robust session management and regular audits.

Enforce restricted access to sensitive business flows through robust workflow verification and back-end security, while guarding against misconfigurations by validating all requests and securing endpoints like the Earn Points API.

Explore SSRF and how misconfigured proxies, overtrust in inputs, and lack of egress filtering enable internal access; mitigate with whitelists, sanitization, limited permissions, and monitoring.

Protect web apps by preventing security misconfiguration through hardening default configurations, limiting information disclosure, and continuous patching; use automated scanners and regular configuration reviews.

Explore how improper inventory management in the OWASP API security top 10 creates security risks and learn to build a comprehensive API asset inventory with identification, tracking, retirement, and audits.

Learn how unsafe consumption of external APIs risks data integrity and authentication, and how to guard through data validation, sanitization, own security controls, zero trust, monitoring, and education.

Clarify requirements to align stakeholders and security goals, negotiate realistic deadlines for thorough security testing, and embrace continuous learning to adapt to evolving architectures.

Explore the vulnerability cycle from identification to post-deployment and its continuous loop. Learn how disclosure, patch development, deployment, and monitoring protect data, integrity, and availability.

Explore why good developers produce insecure code, from human error and tight deadlines to complex requirements, inadequate testing, and talent shortages, and learn strategies to embed secure coding practices.

Identify valuable assets, threat actors, and attack vectors to craft evil user stories, and develop misuse cases to prevent attacks like bypassing login forms and brute-force attempts with lockout policies.