SigmaHQ/rules/web/web_ruby_on_rails_security.yml

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title: Ruby on Rails framework security errors
description: Detects suspicious Ruby on Rails exceptions that could indicate exploitation attempts
author: Thomas Patzke
reference:
- http://edgeguides.rubyonrails.org/security.html
- http://guides.rubyonrails.org/action_controller_overview.html
- https://stackoverflow.com/questions/25892194/does-rails-come-with-a-not-authorized-exception
- https://github.com/rails/rails/blob/master/actionpack/lib/action_dispatch/middleware/exception_wrapper.rb
logsource:
product: ruby_on_rails
detection:
keywords:
- ActionController::InvalidAuthenticityToken
- ActionController::InvalidCrossOriginRequest
- ActionController::MethodNotAllowed
- ActionController::BadRequest
- ActionController::ParameterMissing
condition: keywords
falsepositives:
- Application bugs
- Penetration testing
level: medium