CVE-2017-6925 Drupal Entity access bypass for entities that do not have UUIDs or have protected revisions
Attackers can bypass access controls to view, create, update, or delete specific entities in Drupal 8 core.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2017-6925?
CVE-2017-6925 is a critical missing authorization vulnerability in Drupal Drupal, published on 15 Jan 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In versions of Drupal 8 core prior to 8.3.7; There is a vulnerability in the entity access system that could allow unwanted access to view, create, update, or delete entities. This only affects entities that do not use or do not have UUIDs, and entities that have different access restrictions on different revisions of the same entity.
Which versions are affected by CVE-2017-6925?
4 open source packages ship an affected version, including drupal/core and drupal/drupal. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
drupal/core Packagist | From 8.0 | 8.3.7 |
drupal/core Packagist | From 8.0 | 8.3.7 |
drupal/drupal Packagist | From 8.0 | 8.3.7 |
drupal/drupal Packagist | From 8.0 | 8.3.7 |
Products include Drupal Drupal.
How do I fix CVE-2017-6925?
Upgrade drupal/core to 8.3.7 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2017-6925 being exploited?
There is no known exploitation of CVE-2017-6925 in the wild and no public exploit code.
Other vulnerabilities in Drupal Drupal
Sources
Also known as GHSA-f4qx-jqfq-7785.