#VU77596 Permissions, Privileges, and Access Controls in Node.js - CVE-2023-30582

Vulnerability identifier: #VU77596

Vulnerability risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-30582

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Node.js
Server applications / Web servers

Vendor: Node.js Foundation

Description

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

The vulnerability exists due to an error within the experimental permission model when the --allow-fs-read flag is used with a non-* argument. An inadequate permission model fails to restrict file watching through the fs.watchFile API and result in an ability of a remote user to monitor files that they do not have explicit read access to.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Node.js: 20.0.0, 20.1.0, 20.2.0, 20.3.0

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External links
https://nodejs.org/en/blog/vulnerability/june-2023-security-releases

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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.