CVE-2017-6928
First published: Tue Feb 20 2018(Updated: )
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.
Credit: mlhess@drupal.org mlhess@drupal.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| composer/drupal/core | >=8.0<8.1.0>=8.1.0<8.2.0>=8.2.0<8.3.0>=8.3.0<8.4.0>=8.4.0<8.4.5 | |
| composer/drupal/drupal | >=8.0<8.1.0>=8.1.0<8.2.0>=8.2.0<8.3.0>=8.3.0<8.4.0>=8.4.0<8.4.5 | |
| debian/drupal7 | ||
| debian/drupal7 | <=7.32-1<=7.56-1 | 7.57-1 7.52-2+deb9u2 7.32-1+deb8u10 |
| composer/drupal/drupal | >=7.0<7.57 | 7.57 |
| composer/drupal/core | >=7.0<7.57 | 7.57 |
| Drupal | >=7.0<7.57 | |
| Debian Linux | =7.0 | |
| Debian Linux | =8.0 | |
| Debian Linux | =9.0 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://www.drupal.org/SA-CORE-2018-001
- https://lists.debian.org/debian-lts-announce/2018/02/msg00030.html
- https://www.debian.org/security/2018/dsa-4123
- https://www.drupal.org/sa-core-2018-001
- https://security-tracker.debian.org/tracker/CVE-2017-6928
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=891152
- https://nvd.nist.gov/vuln/detail/CVE-2017-6928
- https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2017-6928.yaml
- https://github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2017-6928.yaml
- https://github.com/advisories/GHSA-66mv-q8r2-hj8w (Advisory)
Frequently Asked Questions
What is the severity of CVE-2017-6928?
CVE-2017-6928 has been categorized as a medium severity vulnerability.
How do I fix CVE-2017-6928?
To fix CVE-2017-6928, update your Drupal version to 7.57 or later.
Which versions of Drupal are affected by CVE-2017-6928?
CVE-2017-6928 affects all Drupal 7.x versions prior to 7.57.
What type of vulnerability is CVE-2017-6928?
CVE-2017-6928 is a file access vulnerability due to inadequate checks in Drupal's private file system.
Can CVE-2017-6928 be exploited remotely?
Yes, CVE-2017-6928 can be exploited remotely if the private file system is misconfigured.
- collector/friends-of-php
- collector/security-tracker-debian
- collector/debian-bugs
- alias/CVE-2017-6928
- agent/type
- agent/first-publish-date
- collector/github-advisory-latest
- source/GitHub
- alias/GHSA-66mv-q8r2-hj8w
- agent/software-canonical-lookup
- agent/weakness
- agent/last-modified-date
- agent/severity
- agent/references
- agent/description
- agent/author
- agent/event
- collector/github-advisory
- agent/trending
- agent/source
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup-request
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- package-manager/composer
- package-manager/debian
- vendor/drupal
- canonical/drupal
- version/drupal/7.0
- vendor/debian
- canonical/debian linux
- version/debian linux/7.0
- version/debian linux/8.0
- version/debian linux/9.0