API Security Penetration Testing Checklist

A comprehensive checklist for API Security Testing, focused on identifying and mitigating vulnerabilities to enhance the security and robustness of APIs. Each checklist item includes the objective, description, and test steps.

Objective: Ensure that only authenticated users have access and only authorized users have the appropriate permissions.Description: Authentication and authorization are fundamental security controls for APIs to prevent unauthorized access.

Test Steps:

Verify if authentication mechanisms (OAuth, JWT, etc.) are in place.Test for broken authentication vulnerabilities.Check if tokens are used securely and verify expiration handling.Ensure that user roles and permissions are enforced and protected.Attempt to access restricted endpoints with lower privilege accounts or unauthenticated users.

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Objective: Prevent abuse from automated bots, denial of service (DoS), or brute-force attacks.