Vulnerability Description
In Drupal 8 prior to 8.3.4; The file REST resource does not properly validate some fields when manipulating files. A site is only affected by this if the site has the RESTful Web Services (rest) module enabled, the file REST resource is enabled and allows PATCH requests, and an attacker can get or register a user account on the site with permissions to upload files and to modify the file resource.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Drupal | Drupal | >= 8.0.0, < 8.3.4 |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/99222Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1038781Third Party AdvisoryVDB Entry
- https://www.drupal.org/forum/newsletters/security-advisories-for-drupal-core/201MitigationVendor Advisory
- http://www.securityfocus.com/bid/99222Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1038781Third Party AdvisoryVDB Entry
- https://www.drupal.org/forum/newsletters/security-advisories-for-drupal-core/201MitigationVendor Advisory
FAQ
What is CVE-2017-6921?
CVE-2017-6921 is a vulnerability with a CVSS score of 5.9 (MEDIUM). In Drupal 8 prior to 8.3.4; The file REST resource does not properly validate some fields when manipulating files. A site is only affected by this if the site has the RESTful Web Services (rest) modul...
How severe is CVE-2017-6921?
CVE-2017-6921 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2017-6921?
Check the references section above for vendor advisories and patch information. Affected products include: Drupal Drupal.