#VU80135 Security features bypass in vm2 - CVE-2023-37466

Vulnerability identifier: #VU80135

Vulnerability risk: High

CVSSv4.0: 8.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber]

CVE-ID: CVE-2023-37466

CWE-ID: CWE-254

Exploitation vector: Network

Exploit availability: Yes

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

Vendor: Patrik Simek

Description

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

The vulnerability exists due to improper validation of user-supplied input within the Promise handler. A remote attacker can pass specially crafted data to the application, bypass sanitization with `@@species` accessor property to escape the sandbox and run arbitrary code.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

vm2: 3.9.0 - 3.9.19

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External links
https://github.com/patriksimek/vm2/security/advisories/GHSA-cchq-frgv-rjh5

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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. However, proof of concept for this vulnerability is available.