A Detailed Guide to the OWASP Top 10 - #10 Server-Side Request Forgery Prevention

The video tutorial discusses strategies to prevent Server-Side Request Forgery (SSRF) attacks by leveraging the OSI model. It emphasizes the importance of network layer security, including deny-by-default policies and network segmentation to limit access to essential resources. The application layer strategies include sanitizing and validating user input, disabling HTTP redirections, and restricting outgoing HTTP calls. The tutorial concludes with best practices for minimizing SSRF risks, such as limiting the number of external links users can share.

What is the primary purpose of deny-by-default firewall policies at the network layer?

• To allow all internet traffic

• To block all internet traffic

• To allow only internal network traffic

• To block all but essential internet traffic

Why is network segmentation important in preventing SSRF attacks?

• It enables easier monitoring of all network activities

• It increases the speed of network traffic

• It reduces the impact of an attack by limiting access to necessary resources

• It allows all servers to access each other's resources

What is a key strategy at the application layer to prevent SSRF attacks?

• Allowing HTTP redirections

• Sanitizing and validating user input

• Increasing the number of external links a user can share

• Disabling network segmentation

How can limiting the number of external links shared by a user help in SSRF prevention?

• It allows more users to share links

• It increases the server's processing speed

• It reduces the risk of denial of service attacks

• It prevents users from accessing internal resources

What should be disabled to prevent the server from being redirected to a different site?

• Network segmentation

• HTTP redirections

• User input validation

• Firewall policies