CVE-2017-6928 Drupal access bypass vulnerability
MediumCVSS 5.3
EPSS 1.0%
PoC
- Published
- Updated
- Exploit status
- Proof-of-concept only
Description
Drupal core 7.x versions before 7.57 when using Drupal's private file system, Drupal will check to make sure a user has access to a file before allowing the user to view or download it. This check fails under certain conditions in which one module is trying to grant access to the file and another is trying to deny it, leading to an access bypass vulnerability. This vulnerability is mitigated by the fact that it only occurs for unusual site configurations.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| drupal/core(Packagist) | >= 7.0, < 7.57 | 7.57 |
| drupal/drupal(Packagist) | >= 7.0, < 7.57 | 7.57 |
| drupal/drupal | >= 7.0, < 7.57 | 7.57 |
| debian linux | = 7.0 | No fix listed |
| debian linux | = 8.0 | No fix listed |
| debian linux | = 9.0 | No fix listed |
| Drupal.org Drupal Core | = Drupal 7.x versions before 7.57 | No fix listed |
References
- nvd.nist.gov third-party-advisory vendor-advisory
- github.com exploit
- github.com exploit
- github.com product
- [debian-lts-announce] 20180228 [SECURITY] [DLA 1295-1] drupal7 security update mailing-list third-party-advisory
- DSA-4123 issue-tracking vendor-advisory
- www.drupal.org vendor-advisory
- github.com