CVE-2017-6930

Description

In Drupal versions 8.4.x versions before 8.4.5 when using node access controls with a multilingual site, Drupal marks the untranslated version of a node as the default fallback for access queries. This fallback is used for languages that do not yet have a translated version of the created node. This can result in an access bypass vulnerability. This issue is mitigated by the fact that it only applies to sites that a) use the Content Translation module; and b) use a node access module such as Domain Access which implement hook_node_access_records().

How to fix CVE-2017-6930

To remediate CVE-2017-6930, upgrade the affected package to a fixed version below.

• —upgrade to 8.4.5 or later
• —upgrade to 8.4.5 or later

Is CVE-2017-6930 being exploited?

Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.

Affected packages (2)

• >= 8.4.0, < 8.4.5
• >= 8.4.0, < 8.4.5

CVSS scores

References (5)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2017-6930
• PATCHgithub.com/drupal/core
• WEBgithub.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2017-6930.yaml
• WEBgithub.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2017-6930.yaml