SA-CONTRIB-2014-084 - Avatar Uploader - Information Disclosure

The Avatar Uploader enables you to upload user pictures in a user-friendly way, like Quora and Facebook.

The module doesn’t sufficiently check the picture path when a user crops the picture in the uploader panel allowing a malicious user to make specially crafted requests to obtain sensitive server files that are readable by the webserver user.

This vulnerability is mitigated by the fact that an attacker must know or guess the relative path out of the temporary directory and to the sensitive files.

CVE identifier(s) issued

• CVE-2014-9155

Versions affected

• Avatar_Uploader 6.x-1.x versions prior to 6.x-1.2
• Avatar_Uploader 7.x-1.x versions prior to 7.x-1.0-beta5

Drupal core is not affected. If you do not use the contributed Avatar Uploader module,
there is nothing you need to do.

Solution

Install the latest version:

• If you use the Avatar_Uploader module for Drupal 6.x, upgrade to Avatar_Uploader 6.x-1.2
• If you use the Avatar_Uploader module for Drupal 7.x, upgrade to Avatar_Uploader 7.x-1.0-beta6

Also see the Avatar Uploader project page.

Reported by

• Damien Norris

Fixed by

• Damien Norris
• Greg Knaddison of the Drupal Security Team
• Robbin Zhao the module maintainer

Coordinated by

• Greg Knaddison of the Drupal Security Team