DRUPAL-CONTRIB-2023-014 S3 File System (s3fs) provides an additional file system to your Drupal site, which stores files in Amazon's Simple Storage Service (S3) or
An attacker with low privileges can move inaccessible files to S3 storage if another vulnerability exists, potentially exposing or modifying data.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is DRUPAL-CONTRIB-2023-014?
DRUPAL-CONTRIB-2023-014 is a missing authorization vulnerability in drupal/s3fs, published on 3 May 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
S3 File System (s3fs) provides an additional file system to your Drupal site, which stores files in Amazon's Simple Storage Service (S3) or any other S3-compatible storage service.
This module may fail to validate that a file being requested to be moved to storage was uploaded during the same web request, possibly allowing an attacker to move files that should normally be inaccessible to them.
This vulnerability is mitigated by the fact that another vulnerability must already exist outside of s3fs.
Which versions are affected by DRUPAL-CONTRIB-2023-014?
Linux distribution packages (1)
drupal/s3fs Packagist:https://packages.drupal.org/8 | All versions | 3.2.0 |
How do I fix DRUPAL-CONTRIB-2023-014?
Apply the vendor's patch.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is DRUPAL-CONTRIB-2023-014 being exploited?
There is no known exploitation of DRUPAL-CONTRIB-2023-014 in the wild and no public exploit code.