A Detailed Guide to the OWASP Top 10 - API1:2023 Broken Object Level Authorization (BOLA)

The video tutorial discusses the Broken Object Level Authorization (BOLA) vulnerability, which allows unauthorized access to resources. It explains how BOLA can lead to information exposure, denial of service, and arbitrary code execution. A PHP code example and a real-life scenario involving an automobile API illustrate the vulnerability. The tutorial concludes with strategies to prevent BOLA, emphasizing proper authorization mechanisms and testing.

What is the primary risk associated with Broken Object Level Authorization (BOLA)?

• Data encryption

• Improved user experience

• Faster API response times

• Unauthorized access to resources

Which of the following is a potential consequence of a BOLA vulnerability?

• Enhanced data privacy

• Reduced network traffic

• Information exposure

• Increased server uptime

In the context of BOLA, what can attackers manipulate to exploit API endpoints?

• Database schemas

• Server logs

• Object IDs

• User passwords

What is missing in the PHP code example that makes it vulnerable to BOLA?

• User input validation

• Proper syntax

• Authorization checks

• Database connection

In the automobile manufacturer example, what additional information should be required to prevent BOLA?

• Vehicle color

• Owner's password

• Driver's license number

• Engine type

Which of the following is a recommended method to prevent BOLA vulnerabilities?

• Reducing API endpoint availability

• Increasing server bandwidth

• Implementing a proper authorization mechanism

• Using complex database queries

Why is it important to write tests for the authorization mechanism?

• To evaluate its vulnerability

• To ensure the mechanism is fast

• To improve user interface

• To reduce server load