Remote code execution in vm2 for Node.js

1) Improper access control

EUVDB-ID: #VU70543

Risk: High

CVSSv4.0: 6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2021-23555

CWE-ID: CWE-284 - Improper Access Control

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to sandbox bypass via direct access to host error objects generated by node internals during generation of a stacktraces. A remote attacker can execute arbitrary code on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

vm2: 3.9.0 - 3.9.5

CPE2.3

• cpe:2.3:a:patriksimek:vm2:3.9.0:*:*:*:*:nodejs:*:*
• cpe:2.3:a:patriksimek:vm2:3.9.1:*:*:*:*:nodejs:*:*
• cpe:2.3:a:patriksimek:vm2:3.9.2:*:*:*:*:nodejs:*:*

External links

https://snyk.io/vuln/SNYK-JS-VM2-2309905
https://github.com/patriksimek/vm2/commit/532120d5cdec7da8225fc6242e154ebabc63fe4d

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.