Vulnerability identifier: #VU10703

Vulnerability risk: Low

CVSSv3.1: 6.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-6930

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Drupal
Web applications / CMS

Vendor: Drupal

Description
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().

Mitigation
Update to version 8.4.5.

Vulnerable software versions

Drupal: 8.4.0 - 8.4.4

---

External links
http://www.drupal.org/sa-core-2018-001

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.