What is CSRF ?
“Cross-site request forgery, also known as one-click attack or session riding and abbreviated as CSRF (sometimes pronounced sea-surf) or XSRF, is a type of malicious exploit of a website where unauthorized commands are transmitted from a user that the website trusts.” – Wikipedia
CSRF is at 8th position in OWASP top 10 bug list. Usage of frameworks like Django, ROR reduces the risk of CSRF to a large extent but it is still there. Also, it is carried out from user’s IP address, website’s logs will have no evidence.
Examples of CSRF:
CSRF comes in all shape and sizes. Dangerous one can take over an account, minor one can destroy your session or log you out.
Every request that change state on server should have CSRF protection.
It can be an email change or addition of user details like a bank account.