9 min read
OWASP API Security Top 10 Mapped to ASP.NET Core
A practical OWASP API Security Top 10 checklist mapped to ASP.NET Core controls — BOLA, auth, mass assignment, rate limits, CORS, and Angular trust boundaries. Not a JWT or RBAC rewrite.
Blog topic
Hardening ASP.NET Core APIs and Angular SPAs — OWASP API Security Top 10, BOLA/IDOR prevention, CSP nonces, STRIDE threat modeling, and security headers.
Security controls built directly into your ASP.NET Core and Angular pipelines. Start with OWASP API Security Top 10 or learn to prevent BOLA/IDOR.
This page is the article map for securing ASP.NET Core APIs and Angular frontends against real-world attack vectors.
| You want… | Open |
|---|---|
| OWASP API Top 10 mapped to .NET | OWASP API Security Top 10 |
| Preventing BOLA / IDOR access flaws | Prevent BOLA/IDOR in ASP.NET Core |
| Nonce-based CSP for Angular SPAs | Content Security Policy for Angular |
| Lightweight STRIDE threat modeling | STRIDE threat modeling for APIs |
| Security headers for Kestrel & reverse proxies | ASP.NET Core security headers |
Security controls belong in middleware, authorization handlers, and pipeline checks — not client-side assumptions.
Related: Auth & Tokens · Azure & Cloud · API Design
Broken Object-Level Authorization (BOLA/IDOR). Mitigate it using resource-based authorization handlers: Prevent BOLA/IDOR in ASP.NET Core.
Use nonce-based middleware in ASP.NET Core: Content Security Policy for Angular.
Follow the 6-step walkthrough: STRIDE threat modeling for ASP.NET Core APIs.
9 min read
A practical OWASP API Security Top 10 checklist mapped to ASP.NET Core controls — BOLA, auth, mass assignment, rate limits, CORS, and Angular trust boundaries. Not a JWT or RBAC rewrite.
9 min read
Prevent BOLA/IDOR in ASP.NET Core with object-level authorization — ownership checks, IAuthorizationService resource handlers, list-endpoint filters, and cross-tenant id defenses. Complements the RBAC policies guide; does not rewrite roles.
9 min read
Ship a production Content Security Policy for Angular hosted by ASP.NET Core — nonce middleware for index.html, script/style directives, Material/chart breaks, Report-Only rollout, and debugging without disabling CSP. Deepens the security-headers post.
9 min read
Lightweight STRIDE threat modeling for ASP.NET Core REST APIs — walk Spoofing through Elevation on an Angular-facing clinic appointment endpoint, map mitigations to JWT, RBAC, validation, rate limits, and a reusable worksheet. Not enterprise GRC fluff.
3 min read
Which security headers an ASP.NET Core app should send: nosniff, frame, referrer, and HSTS. What each one stops, and when HSTS on a first response is a mistake.