A Detailed Guide to the OWASP Top 10 - API3:2023 Broken Object Property Level Authorization

The video tutorial explains the concept of broken object property level authorization, a security vulnerability that allows unauthorized users to access and modify object properties. It begins with an introduction to objects and properties in programming, using a car object as an example. The tutorial then delves into the vulnerability, discussing how it combines excessive data exposure and mass assignment. Finally, it provides strategies to prevent this vulnerability, such as exposing only necessary properties and implementing validation mechanisms.

What is an object in programming?

• A collection of properties

• A single value

• A variable

• A function

In the example of the 'Honda' object, what is the 'engine' considered as?

• A property

• A name

• A value

• An object

What does broken object property level authorization allow?

• Users to access unauthorized object properties

• Users to change object names

• Users to delete objects

• Users to create new objects

What was combined in 2023 to form broken object property level authorization?

• Data validation and verification

• User authentication and authorization

• Excessive data exposure and mass assignment

• Data encryption and decryption

What is mass assignment?

• A technique to encrypt data

• A way to delete multiple properties

• A security flaw allowing unauthorized property setting

• A method to assign multiple values at once

Which of the following is a preventive measure against broken object property level authorization?

• Allowing all properties to be changed

• Encrypting all data

• Exposing only necessary properties

• Disabling all user access

Why should a schema-based validation mechanism be implemented?

• To increase the speed of the application

• To hide all object properties

• To define and enforce data returned by API methods

• To allow users to change all properties