Remote code execution in Drupal

1) Code injection

EUVDB-ID: #VU12182

Risk: High

CVSSv3.1: 9.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2018-7602

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to compromise vulnerable website.

The vulnerability exists due to improper input validation when processing HTTP requests. A remote unauthenticated attacker can send a specially crafted HTTP request to vulnerable website and compromise it.

Successful exploitation of the vulnerability may allow an attacker to gain full access to vulnerable website.

Note: the vendor updated the original advisory stating that this vulnerability is being exploited in the wild.

Mitigation

Update to version 7.59, 8.4.8 or 8.5.3.

Vulnerable software versions

Drupal: 7.0 - 8.5.2

External links

http://www.drupal.org/sa-core-2018-004

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?

Yes. This vulnerability is being exploited in the wild.