CVE-2024-21891: node.js Path Traversal (CVSS 8.8)

Description

Node.js depends on multiple built-in utility functions to normalize paths provided to node:fs functions, which can be overwitten with user-defined implementations leading to filesystem permission model bypass through path traversal attack. This vulnerability affects all users using the experimental permission model in Node.js 20 and Node.js 21. Please note that at the time this CVE was issued, the permission model is an experimental feature of Node.js.

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CVSS v3.1 Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-22 Path Traversal

Affected Products

Vendor	Product	Versions
nodejs	node.js	20.0.0 — 20.11.1
nodejs	node.js	21.0.0 — 21.6.2

References

Other References

http://www.openwall.com/lists/oss-security/2024/03/11/1 https://hackerone.com/reports/2259914 https://security.netapp.com/advisory/ntap-20240315-0005/ http://www.openwall.com/lists/oss-security/2024/03/11/1 https://hackerone.com/reports/2259914 https://security.netapp.com/advisory/ntap-20240315-0005/

Frequently Asked Questions

What is CVE-2024-21891? +

Node.js depends on multiple built-in utility functions to normalize paths provided to node:fs functions, which can be overwitten with user-defined implementations leading to filesystem permission model bypass through path traversal attack. This vulnerability affects all users using the experimental permission model in Node.js 20 and Node.js 21. Please note that at the time this CVE was issued, the permission model is an experimental feature of Node.js. It has a CVSS v3.1 base score of 8.8 (HIGH).

How severe is CVE-2024-21891? +

CVE-2024-21891 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-21891? +

CVE-2024-21891 affects products from nodejs, specifically: node.js. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-21891? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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