Drupal Core Vulnerability Released – Denial of Service – Advisory SA-CORE-2013-002

As if the week wasn’t exciting enough, Drupal has released a core vulnerability that leaves it susceptible to Denial of Service attacks.

Metadata for this vulnerability is:

Advisory ID: DRUPAL-SA-CORE-2013-002
Project: Drupal core
Version: 7.x
Date: 2013-February-20
Security risk: Critical
Exploitable from: Remote
Vulnerability: Denial of service

Description of the vulnerability:

Drupal core’s Image module allows for the on-demand generation of image derivatives. This capability can be abused by requesting a large number of new derivatives which can fill up the server disk space, and which can cause a very high CPU load.

This vulnerability has been patched and it’s recommended that all Drupal sites upgrade to the latest version, 7.20.

I will say this about this announcement, I kind of wish other platforms would do something similar to disclose security issues to the public. Kudos Drupal security team for your approach to disclosure.

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About Tony Perez

Tony is the Co-Founder / CEO at Sucuri. He shares a deep passion for Information Security, Business and Brazilian JiuJitsu. He approaches the business the same as he trains BJJ, one move at a time and gently. You can follow him on twitter: @perezbox.

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    Thank you for this post