#VU70544 Code Injection in vm2 - CVE-2022-25893

Vulnerability identifier: #VU70544

Vulnerability 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

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 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

---

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.