Vulnerability identifier: #VU6352

Vulnerability risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-6919

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Drupal
Web applications / CMS

Vendor: Drupal

Description

The vulnerability allows a remote attacker to gain escalated privileges within web application.

The vulnerability exists due to undisclosed error related to RESTful Web Services. A remote authenticated attacker can send a specially crafted PATCH request and gain full access to vulnerable website.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable website.

 

Mitigation
Update to version 8.2.8 or 8.3.1.

Vulnerable software versions

Drupal: 8.2.0 - 8.2.7, 8.3.0

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External links
http://www.drupal.org/SA-CORE-2017-002

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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