Sandbox escape in vm2 for Notde.js

1) Code injection

EUVDB-ID: #VU75367

Risk: Medium

CVSSv4.0: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/U:Green]

CVE-ID: CVE-2023-30547

CWE-ID: CWE-74 - Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

Exploit availability: Yes

Description

The vulnerability allows a remote user to bypass implemented security restrictions.

The vulnerability exists due to an error in exception sanitization. A remote user can raise an unsanitized host exception inside "handleException()", which can be used to escape the sandbox and run arbitrary code in host context.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

vm2: 3.9.0 - 3.9.16

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/commit/f3db4dee4d76b19869df05ba7880d638a880edd5
https://github.com/patriksimek/vm2/commit/4b22e87b102d97d45d112a0931dba1aef7eea049
https://github.com/patriksimek/vm2/security/advisories/GHSA-ch3r-j5x3-6q2m
https://gist.github.com/leesh3288/381b230b04936dd4d74aaf90cc8bb244

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user 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.