Remote code execution in vm2 for Node.js

1) Code Injection

EUVDB-ID: #VU70544

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-25893

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to usage of prototype lookup for the WeakMap.prototype.set method. A remote attacker can send a specially crafted request and execute arbitrary code on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

vm2: 3.9.0 - 3.9.9

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://github.com/patriksimek/vm2/pull/445/commits/3a9876482be487b78a90ac459675da7f83f46d69
https://github.com/patriksimek/vm2/pull/445
https://security.snyk.io/vuln/SNYK-JS-VM2-2990237
https://github.com/patriksimek/vm2/issues/444

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.