Vulnerability identifier: #VU46771

Vulnerability risk: Low

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-13670

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Drupal
Web applications / CMS

Vendor: Drupal

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted information.

The vulnerability exists due to improper access restrictions within the File module when displacing file metadata. A remote attacker can guess file identifier and view potentially sensitive information.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Drupal: 9.0.0 - 9.0.5, 8.9.0 - 8.9.5, 8.8.0 - 8.8.9, 8.7.0 - 8.7.14, 8.6.0 - 8.6.18, 8.5.0 - 8.5.15, 8.4.0 - 8.4.8, 8.3.0 - 8.3.9, 8.2.0 - 8.2.8, 8.1.0 - 8.1.10, 8.0 - 8.0.6

---

External links
http://www.drupal.org/sa-core-2020-011

---

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.