CVE-2024-21891

2024-02-2001:31:08

hackerone

github.com

node.js

path normalization

vulnerability

experimental feature

filesystem permission model

path traversal attack

CVSS3

7.9

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

AI Score

7.7

Confidence

High

SSVC

Exploitation

none

Automatable

Technical Impact

partial

JSON

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.

CNA Affected

[
  {
    "vendor": "Node.js",
    "product": "Node.js",
    "versions": [
      {
        "status": "affected",
        "version": "21.6.0",
        "versionType": "semver",
        "lessThanOrEqual": "21.6.0"
      },
      {
        "status": "affected",
        "version": "20.11.0",
        "versionType": "semver",
        "lessThanOrEqual": "20.11.0"
      }
    ],
    "defaultStatus": "unaffected"
  }
]