Vulnerability in Drupal
CVE-2017-6928
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.
EPSS: 0.010 (60.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Drupal
- Drupal.org Drupal Core — versions Drupal 7.x versions before 7.57
- Debian Debian_linux — versions 7.0, 8.0, 9.0
Weakness classification (CWE)
References
- mlhess@drupal.org (vendor-advisory, Issue Tracking, x_refsource_DEBIAN)
- mlhess@drupal.org (mailing-list, x_refsource_MLIST, Third Party Advisory)
- mlhess@drupal.org (x_refsource_CONFIRM, Vendor Advisory)
Frequently asked questions
- What is CVE-2017-6928?
- CVE-2017-6928 is a medium-severity vulnerability in Drupal, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 5.3/10. Published 2018-03-01.
- How severe is CVE-2017-6928?
- Medium severity. CVSS v3 base score is 5.3 out of 10.