Actu
Vigil@nce - Symfony: privilege escalation via _controller
July 2015 by Vigil@nce
This bulletin was written by Vigil@nce : http://vigilance.fr/offer
SYNTHESIS OF THE VULNERABILITY
An attacker can use the _controller parameter of Symfony, in order
to change the behavior of a web site.
Impacted products: Debian, eZ Publish, Fedora, Symfony
Severity: 2/4
Creation date: 27/05/2015
DESCRIPTION OF THE VULNERABILITY
The Symfony product uses the "_controller" parameter (in YAML,
XML, PHP) to choose the controller to be used to handle a route
(url).
However, an attacker can directly use the "_controller" parameter
in a "/_fragment" url, in order to change the controller. The
attacker obtains an HTTP code 403 response, with a body generated
by the controller.
An attacker can therefore use the _controller parameter of
Symfony, in order to change the behavior of a web site.
ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN
http://vigilance.fr/vulnerability/Symfony-privilege-escalation-via-controller-16994
