- Advisory ID: DRUPAL-SA-CONTRIB-2016-016
- Project: Fast Autocomplete (third-party module)
- Version: 7.x
- Date: 2016-March-16
- Security risk: 12/25 ( Moderately Critical) AC:None/A:None/CI:None/II:None/E:Theoretical/TD:All
- Vulnerability: Denial of Service
Description
This module enables you to show IMDB-like suggestions when entering terms into an input field using json files to “cache” suggestions making the autocomplete very fast.
The module doesn’t sufficiently validate the incoming language parameter in the request path when a json file of the module is requested resulting in folders being created in the public files directory where the module stores its json files. This vulnerability can be exploited to perform a DOS-attack by depletion of available inodes on the webserver.
CVE identifier(s) issued
- A CVE identifier will be requested, and added upon issuance, in accordance with Drupal Security Team processes.
Versions affected
- Fast Autocomplete 7.x-1.x versions prior to 7.x-1.1.
Drupal core is not affected. If you do not use the contributed Fast Autocomplete module, there is nothing you need to do.
Solution
Install the latest version:
- If you use the Fast Autocomplete module for Drupal 7.x, upgrade to Fast Autocomplete 7.x-1.2
While version 7.x-1.1 is not vulnerable, it contains a major bug affecting functionality. Also see the Fast Autocomplete project page.
Reported by
Fixed by
- Harold Aling providing the patch
- Martijn van Wensen providing the patch
- Baris Wanschers reviewing/refining the patch
- Martijn Vermeulen the module maintainer
Coordinated by
- Pere Orga of the Drupal Security Team
Contact and More Information
The Drupal security team can be reached at security at drupal.org or via the contact form at https://www.drupal.org/contact.
Learn more about the Drupal Security team and their policies, writing secure code for Drupal, and securing your site.
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