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Immediately following BOLA and authorization issues come authentication issues, which have kept their place as the number 2 ranked attack vector. In this example, attackers could have used a BOLA vulnerability to take over any Ferrari owner’s online account and perform any actions on his or her behalf. On the other hand, since authorization is in the very heart of every system, a failure in authorization can have a devastating impact when implemented incorrectly, as we can see in this recent example where researchers found several BOLA vulnerabilities in online services provided by various automotive manufacturers. In a blazing-fast development environment, it becomes very difficult to oversee every authorization issue and inspect each object’s access to ensure only its allowed users can access it. While some API frameworks allow better control of authorization, others do not. The main reason BOLA remains at the highest rank is the complex and diverse authorization mechanisms (or lack thereof) across all forms of APIs. The BOLA attack vector has kept its respectable first place in the mapping, and rightfully so.īOLA attacks remained the go-to attack vector when it came to API attacks. ‍ OWASP API Security – What Did Not ChangeĪPI1:2023 Broken Object Level Authorization (BOLA)‍ We encourage the entire security community to explore the new release candidate further – this is your opportunity to share your thoughts, comments, and even objections to the project. In this post, we wanted to share some of the motivations behind this new API Security Top 10 mapping and share our perspective as well as some data we can provide to support these decisions.

However, an initial release candidate has already been published. And we continue to be deeply involved in the thinking process, data gathering, and brainstorming in updating it.Īs of the writing of this post, the final version of API Security has not been officially released. The team at Salt Security has always been actively involved in this project, having been a key contributor to the initial creation of the list. The OWASP API project has recently decided to refresh the popular API Security Top 10 threat map.