Drupal 8.2.7, a maintenance release which contains fixes for security vulnerabilities, is now available for download.

Update your existing Drupal 8 sites is strongly recommended. There are no new features nor non-security-related bug fixes in this release. See the 8.2.7 release notes for details on important changes and known issues affecting this release. Read on for details of the security vulnerabilities that were fixed in this release.

• Advisory ID: DRUPAL-SA-CORE-2017-001
• Project: Drupal core
• Version: 8.x
• Date: 2017-March-15

Description

Editor module incorrectly checks access to inline private files - Drupal 8 - Access Bypass - Critical - CVE-2017-6377

When adding a private file via a configured text editor (like CKEditor), the editor will not correctly check access for the file being attached, resulting in an access bypass.

Some admin paths were not protected with a CSRF token - Drupal 8 - Cross Site Request Forgery - Moderately Critical - CVE-2017-6379

Some administrative paths did not include protection for CSRF. This would allow an attacker to disable some blocks on a site. This issue is mitigated by the fact that users would have to know the block ID.

Remote code execution - Drupal 8 - Remote code execution - Moderately Critical - CVE-2017-6381

A 3rd party development library including with Drupal 8 development dependencies is vulnerable to remote code execution.

This is mitigated by the default .htaccess protection against PHP execution, and the fact that Composer development dependencies aren't normal installed.

You might be vulnerable to this if you are running a version of Drupal before 8.2.2. To be sure you aren’t vulnerable, you can remove the /vendor/phpunit directory from the site root of your production deployments.

Solution

Update to Drupal 8.2.7

Reported by

Editor module incorrectly checks access to inline private files - Drupal 8 - Access Bypass - Critical - CVE-2017-6377

• Casey

Some admin paths were not protected with a CSRF token - Drupal 8 - Cross Site Request Forgery - Moderately Critical - CVE-2017-6379

• Samuel Mortenson

Remote code execution - Drupal 8 - Remote code execution - Moderately Critical - CVE-2017-6381

• Timo Hilsdorf

Fixed by

Editor module incorrectly checks access to inline private files - Drupal 8 - Access Bypass - Critical - CVE-2017-6377

• László Csécsy
• Wim Leers
• Alex Pott of the Drupal Security Team
• Klaus Purer of the Drupal Security Team

Some admin paths were not protected with a CSRF token - Drupal 8 - Cross Site Request Forgery - Moderately Critical - CVE-2017-6379

• Samuel Mortenson
• Sascha Grossenbacher

Remote code execution - Drupal 8 - Remote code execution -Moderately Critical - CVE-2017-6381

• Klaus Purer Of the Drupal Security Team
• Mixologic

Updates

Updated the above text to link to the correct update directions.

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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