#VU76527 Security features bypass in vm2 - CVE-2023-32314

Vulnerability identifier: #VU76527

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-2023-32314

CWE-ID: CWE-254

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 bypass implemented security restrictions.

The vulnerability exists due to an unexpected creation of a host object based on the specification of `Proxy`. A remote attacker can escape sandbox restrictions and gain remote code execution rights on the host.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

vm2: 3.9.0 - 3.9.17

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External links
https://gist.github.com/arkark/e9f5cf5782dec8321095be3e52acf5ac
https://github.com/patriksimek/vm2/security/advisories/GHSA-whpj-8f3w-67p5
https://github.com/patriksimek/vm2/releases/tag/3.9.18
https://github.com/patriksimek/vm2/commit/d88105f99752305c5b8a77b63ddee3ec86912daf

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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.