The OWASP Top 10 API Security Risks 2023 has arrived! OWASP's API Top 10 is always a highly anticipated release and can be a key component of API security preparedness for the year. As we discussed in API Security Best Practices for a Changing Attack Surface, API usage continues to skyrocket. As a result, API security coverage must be more advanced than ever.
What are the OWASP Top 10 API Security Risks?
The OWASP Top 10 API Security Risks is a list of the highest priority API based threats in 2023. Let’s dig a little deeper into each item on the OWASP Top 10 API Security Risks list to outline the type of threats you may encounter and appropriate responses to curtail each threat.
1. Broken object level authorization
Object level authorization is a control method that restricts access to objects to minimize system exposures. All API endpoints that handle objects should perform authorization checks utilizing user group policies.
We recommend using this authorization mechanism in every function that receives client input to access objects from a data store. As an additional means for hardening, it is recommended to use cryptographically secure random GUID values for object reference IDs.
2. Broken authentication
Authentication relates to all endpoints and data flows that handle the identity of users or entities accessing an API. This includes credentials, keys, tokens, and even password reset functionality. Broken authentication can lead to many issues such as credential stuffing, brute force attacks, weak unsigned keys, and expired tokens.
Authentication covers a wide range of functionality and requires strict scrutiny and strong practices. Detailed threat modeling should be pe ..
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