CVE-2024-21896

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

20/02/2024

Last modified:

02/04/2025

Description

The permission model protects itself against path traversal attacks by calling path.resolve() on any paths given by the user. If the path is to be treated as a Buffer, the implementation uses Buffer.from() to obtain a Buffer from the result of path.resolve(). By monkey-patching Buffer internals, namely, Buffer.prototype.utf8Write, the application can modify the result of path.resolve(), which leads to a path traversal vulnerability.<br /> This vulnerability affects all users using the experimental permission model in Node.js 20 and Node.js 21.<br /> Please note that at the time this CVE was issued, the permission model is an experimental feature of Node.js.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 9.80 CRITICAL
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

9.80

Severity 3.x

CRITICAL

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:nodejs:node.js:::::-:::*	20.0.0 (including)	20.11.1 (excluding)
cpe:2.3:a:nodejs:node.js:::::-:::*	21.0.0 (including)	21.6.2 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2024-21896

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools