Published: 2025-11-26T23:15:49.237
Overview
This article details a critical security vulnerability, CVE-2025-66030, affecting Node-Forge, a native JavaScript implementation of Transport Layer Security (TLS). This vulnerability stems from an integer overflow in the ASN.1 (Abstract Syntax Notation One) structure processing, potentially allowing attackers to bypass security measures that rely on OID (Object Identifier) validation.
Technical Details
Node-Forge versions 1.3.1 and below contain an integer overflow vulnerability in the handling of ASN.1 structures. An unauthenticated, remote attacker can craft a malicious ASN.1 structure that includes OIDs with oversized arcs. These arcs, when processed, are subject to 32-bit bitwise truncation. This truncation can result in the oversized arc being decoded as a smaller, legitimate, and trusted OID. This manipulation allows the attacker to potentially bypass downstream security decisions predicated on OID validation.
CVSS Analysis
While the CVE entry indicates a severity of N/A and CVSS score of N/A, the potential for security bypass should be treated with seriousness. The absence of a CVSS score at the time of this publication does not diminish the risk. A manual risk assessment should consider the specific OID-based security mechanisms within the affected application(s).
Possible Impact
The exploitation of this vulnerability could have significant security implications. By manipulating OIDs, attackers may be able to:
- Bypass authentication mechanisms that rely on OID validation.
- Gain unauthorized access to sensitive data.
- Execute malicious code by leveraging trusted OID associations.
Mitigation and Patch Steps
The vulnerability has been addressed in Node-Forge version 1.3.2. The recommended course of action is to immediately update to the latest version of Node-Forge. To update, use the following command:
npm install node-forge@latestVerify the updated version by checking your `package.json` file or running:
npm list node-forge
