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CVE-2017-6930 Drupal access bypass vulnerability

HighCVSS 8.1 EPSS 1.3% PoC
Published
Updated
Exploit status
Proof-of-concept only

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().

Affected products

ProductAffected versionsFixed in
drupal/core(Packagist) >= 8.4.0, < 8.4.5 8.4.5
drupal/core(Packagist) = 8.4.0 No fix listed
drupal/core(Packagist) = 8.4.1 No fix listed
drupal/core(Packagist) = 8.4.2 No fix listed
drupal/core(Packagist) = 8.4.3 No fix listed
drupal/core(Packagist) = 8.4.4 No fix listed
drupal/drupal(Packagist) >= 8.4.0, < 8.4.5 8.4.5
drupal/drupal(Packagist) = 8.4.0 No fix listed
drupal/drupal(Packagist) = 8.4.1 No fix listed
drupal/drupal(Packagist) = 8.4.2 No fix listed
drupal/drupal(Packagist) = 8.4.3 No fix listed
drupal/drupal(Packagist) = 8.4.4 No fix listed
drupal/drupal >= 8.4.0, < 8.4.5 8.4.5
Drupal.org Drupal Core = 8.4.x versions before 8.4.5 No fix listed

References