CVE-2013-6417 – rubygem-actionpack: unsafe query generation risk (incomplete fix for CVE-2013- 0155)

https://notcve.org/view.php?id=CVE-2013-6417

actionpack/lib/action_dispatch/http/request.rb in Ruby on Rails before 3.2.16 and 4.x before 4.0.2 does not properly consider differences in parameter handling between the Active Record component and the JSON implementation, which allows remote attackers to bypass intended database-query restrictions and perform NULL checks or trigger missing WHERE clauses via a crafted request that leverages (1) third-party Rack middleware or (2) custom Rack middleware. NOTE: this vulnerability exists because of an incomplete fix for CVE-2013-0155. actoinpack/lib/action_dispatch/http/request.rb en Ruby on Rails anteriores a 3.2.16 y 4.x anteriores a 4.0.2 no considera correctamente las diferencias en la gestión de parámetros entre el componente Active Record y la implementación de JSON, lo cual permite a atacantes remotos sortear restricciones de consultas a la base de datos y ejecutar comprobaciones NULL o provocar falta de cláusulas WHERE a través de una petición manipulada que aprovecha (1) middleware Rack de terceros o (2) middleware Rack propio. NOTA: esta vulnerabilidad existe debido a una corrección incompleta de CVE-2013-0155. • http://lists.opensuse.org/opensuse-updates/2013-12/msg00079.html http://lists.opensuse.org/opensuse-updates/2013-12/msg00081.html http://lists.opensuse.org/opensuse-updates/2013-12/msg00082.html http://lists.opensuse.org/opensuse-updates/2014-01/msg00003.html http://rhn.redhat.com/errata/RHSA-2013-1794.html http://rhn.redhat.com/errata/RHSA-2014-0008.html http://rhn.redhat.com/errata/RHSA-2014-0469.html http://weblog.rubyonrails.org/2013/12/3/Rails_3_2_16_and_4_0_2_ • CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') CWE-264: Permissions, Privileges, and Access Controls •