Security restrictions bypass in Drupal - CVE-2017-6930

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Main Vulnerability Database Vulnerabilities #VU10703

Security restrictions bypass in Drupal - CVE-2017-6930

Published: February 22, 2018 / Updated: March 23, 2018


Vulnerability identifier: #VU10703
CSH Severity: Low
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-6930
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The disclosed vulnerability allows a remote attacker to bypass security restrictions on the target system.

The weakness exists due to incorrect language fallback on multilingual sites with node access restrictions. A remote attacker can bypass access.

The issue 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 software

Drupal
Fedora
drupal6
drupal7
drupal8

How to mitigate CVE-2017-6930

Update to version 8.4.5.

drupal6 - update to 6.38-2.el6
drupal7 - addressed in versions 7.57-1.el6, 7.57-1.el7, 7.57-1.fc26, 7.57-1.fc27, 7.58-1.el6, 7.58-1.el7, 7.58-1.fc26, 7.58-1.fc27, 7.58-1.fc28
drupal8 - addressed in versions 8.3.9-1.fc26, 8.4.6-3.fc27, 8.4.6-3.fc28

External References

Related Security Bulletins