What is Cross-Site Request Forgery and what are Defences against it?

The most robust way to defend against CSRF attacks is to include a CSRF token within relevant requests. The token should be: Unpredictable with high entropy, as for session tokens in general. Tied to the user’s session. Strictly validated in every case before the relevant action is executed.

Which of the following are the most common results of a cross site request forgery?

It can result in damaged client relationships, unauthorized fund transfers, changed passwords and data theft—including stolen session cookies. CSRFs are typically conducted using malicious social engineering, such as an email or link that tricks the victim into sending a forged request to a server.

How can cross site request forgery CSRF be prevented?

Validating Requests. Attackers can perform a CSRF attack if they know the parameters and values to send in a form or in a query string. To prevent those attacks, you need a way to distinguish data sent by the legitimate user from the one sent by the attacker.

Which of the following are the most common results of a cross-site request forgery?

Which of the following is the most secure implementation of defense against cross-site request forgery attacks?

Anti-CSRF tokens are considered the most effective method of protecting against CSRF. Use a tested implementation such as CSRFGuard for Java or CSRFProtector for PHP to implement your anti-CSRF tokens.

Why is XSS called cross-site?

The expression “cross-site scripting” originally referred to the act of loading the attacked, third-party web application from an unrelated attack-site, in a manner that executes a fragment of JavaScript prepared by the attacker in the security context of the targeted domain (taking advantage of a reflected or non- …

What can XSS be used for?

Cross-site scripting (also known as XSS) is a web security vulnerability that allows an attacker to compromise the interactions that users have with a vulnerable application. It allows an attacker to circumvent the same origin policy, which is designed to segregate different websites from each other.