CVE-2012-2660

actionpack/lib/action_dispatch/http/request.rb en Ruby on Rails antes de v3.0.13, v3.1.x antes de v3.1.5 y v3.2.x antes de v3.2.4 no tienen debidamente en cuenta las diferencias en el manejo de parámetros entre el componente Active Record y la interfaz Rack, lo que permite a atacantes remotos evitar las restricciones de consulta de bases de datos y realizar comprobaciones de nulos a través de una solicitud hecha a mano, por ejemplo con valores "[nil]". Se trata de un problema relacionado con el CVE-2012-2694.

Ruby on Rails is a model-view-controller framework for web application development. Action Pack implements the controller and the view components. Active Record implements object-relational mapping for accessing database entries using objects. Active Support provides support and utility classes used by the Ruby on Rails framework. Multiple flaws were found in the way Ruby on Rails performed XML parameter parsing in HTTP requests. A remote attacker could use these flaws to execute arbitrary code with the privileges of a Ruby on Rails application, perform SQL injection attacks, or bypass the authentication using a specially-created HTTP request.