Rails CSRF Vulnerability: The Comedy of Errors Continues!
Ruby on Rails’ Cross-Site Request Forgery (CSRF) protection is as secure as a chocolate teapot. Despite updates, it remains vulnerable to attacks due to the flawed handling of authenticity tokens, allowing attackers to forge CSRF tokens with ease. So, if you’re using Rails, you might want to keep an eye on your cookies!
Hot Take:
Ruby on Rails has more holes than a Swiss cheese factory! Despite attempting a fix, the CSRF protection is still as defenseless as a knight in cardboard armor. The “one-time pad” might as well be called the “every-time pad” because hackers are having a field day with it. Who needs an authenticity token when you can just make your own? Rails, we’re looking at you—time to get your security act together!
Key Points:
- All versions of Rails since the 2022/2023 fix are still vulnerable to CSRF attacks.
- The “authenticity token” system is flawed, as it combines the OTP with the masked token, making it easy to decrypt.
- Attackers can forge or replay CSRF tokens by using the included OTP.
- The current implementation allows attackers to effectively generate their own tokens.
- A JavaScript tool is available to exploit the vulnerability and forge CSRF tokens.
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