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The sanitize helper in lib/action_controller/vendor/html-scanner/html/sanitizer.rb in the Action Pack component in Ruby on Rails before 2.3.18, 3.0.x and 3.1.x before 3.1.12, and 3.2.x before 3.2.13 does not properly handle encoded : (colon) characters in URLs, which makes it easier for remote attackers to conduct cross-site scripting (XSS) attacks via a crafted scheme name, as demonstrated by including a : sequence.
Source: MITRE View Analysis Description
Source: MITRE
Base Score: 4.3 MEDIUM Vector: (AV:N/AC:M/Au:N/C:N/I:P/A:N) (V2 legend) Impact Subscore: 2.9 Exploitability Subscore: 8.6
Access Vector (AV): Network Access Complexity (AC): Medium Authentication (AU): None Confidentiality (C): None Integrity (I): Partial Availability (A): None Additional Information: Victim must voluntarily interact with attack mechanismAllows unauthorized modification
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OR *cpe:2.3:o:redhat:enterprise_linux:6:*:*:*:*:*:*:*
OR *cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
El sanitize helper en lib/action_controller/vendor/html-scanner/html/sanitizer.rb en el componente Action Pack en Ruby on Rails en versiones anteriores a 2.3.18, 3.0.x y 3.1.x en versiones anteriores a 3.1.12 y 3.2.x en versiones anteriores a 3.2.13 no maneja adecuadamente codificación de caracteres : (dos puntos) en URLs, lo que hace que sea más fácil para atacantes remotos llevar a cabo ataques de secuencias de comandos en sitios cruzados (XSS) a través de un nombre de esquema manipulado, segú
La ayuda para sanitizar en lib/action_controller/vendor/html-scanner/html/sanitizer.rb en el componente Action Pack en Ruby on Rails anterior a v2.3.18, v3.0.x y v3.1.x anterior a v3.1.12, y v3.2.x anterior v3.2.13 no maneja adecuadamente la codificación:de caracteres en las URL lo que facilita a atacantes remotos llevar a cabo ataques XSS a través de un esquema manipulado como se ha demostrado añadiendo una secuencia de ":".
Configuration 1 OR *cpe:2.3:a:rubyonrails:ruby_on_rails:2.3.17:*:*:*:*:*:*:* (and previous) *cpe:2.3:a:rubyonrails:ruby_on_rails:2.3.11:*:*:*:*:*:*:* *cpe:2.3:a:rubyonrails:ruby_on_rails:2.3.12:*:*:*:*:*:*:* *cpe:2.3:a:rubyonrails:ruby_on_rails:2.3.10:*:*:*:*:*:*:* *cpe:2.3:a:rubyonrails:ruby_on_rails:2.3.14:*:*:*:*:*:*:* *cpe:2.3:a:rubyonrails:ruby_on_rails:2.3.13:*:*:*:*:*:*:* *cpe:2.3:a:rubyonrails:ruby_on_rails:2.3.16
Configuration 1 OR *cpe:2.3:o:redhat:enterprise_linux:6:*:*:*:*:*:*:* Configuration 2 OR *cpe:2.3:a:rubyonrails:ruby_on_rails:2.3.17:*:*:*:*:*:*:* (and previous) *cpe:2.3:a:rubyonrails:ruby_on_rails:2.3.11:*:*:*:*:*:*:* *cpe:2.3:a:rubyonrails:ruby_on_rails:2.3.12:*:*:*:*:*:*:* *cpe:2.3:a:rubyonrails:ruby_on_rails:2.3.10:*:*:*:*:*:*:* *cpe:2.3:a:rubyonrails:ruby_on_rails:2.3.14:*:*:*:*:*:*:* *cpe:2.3:a:rubyonrails:rub
http://rhn.redhat.com/errata/RHSA-2014-1863.html