Vulnerability identifier: #VU70542

Vulnerability risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-23449

CWE-ID: CWE-94

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
vm2
Web applications / Modules and components for CMS

Vendor: Patrik Simek

Description

The vulnerability allows a remote attacker to execute arbitrary JavaScript code.

The vulnerability exists due to insufficient sanitization of user-supplied data. A remote attacker can perform prototype pollution attack and execute arbitrary code on the server.

Mitigation
Install update from vendor's website.

Vulnerable software versions

vm2: 3.9.0 - 3.9.3

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External links
http://github.com/patriksimek/vm2/issues/363
http://snyk.io/vuln/SNYK-JS-VM2-1585918
http://github.com/patriksimek/vm2/releases/tag/3.9.4
http://github.com/patriksimek/vm2/commit/b4f6e2bd2c4a1ef52fc4483d8e35f28bc4481886
http://security.netapp.com/advisory/ntap-20211029-0010/

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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.