Introduction to API7:2019 Security Misconfiguration
Security Misconfiguration, listed as API7:2019 in the OWASP API Security Top 10, refers to improper or incomplete security settings across the API stack, including cloud services, application servers, and HTTP headers. Common issues include overly permissive CORS policies, exposed error messages, default credentials, and unnecessary HTTP methods enabled. These missteps provide attackers with opportunities to probe, exploit, or gain unauthorized access to systems. APIs are particularly at risk due to their distributed nature and reliance on external services. To prevent this, enforce secure defaults, remove unused features, harden configurations, and regularly review and test API deployments.