7.5

CVSS Score

3.1

-

CVSS Score

Basic Information

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CVE-2022-41340

CVE-2022-41340: secp256k1-js implements ECDSA without required r and s validation, leading to signature forgery

The secp256k1-js package before 1.1.0 for Node.js implements ECDSA without required r and s validation, leading to signature forgery.

(GitHub Advisory)

Miggo Vulnerability Database

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CVE-2022-41340

CVE-2022-41340:

7.5

CVSS Score

3.1

-

CVSS Score

Basic Information

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Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
@lionello/secp256k1-js	npm	< 1.1.0	1.1.0

Technical Details

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Miggo AI

Root Cause Analysis

The core vulnerability stems from missing cryptographic parameter validation in ECDSA operations. The patch added critical checks in three key functions: 1) ecverify() now explicitly checks for r/s=0 (CVE's primary focus), 2) ecrecover() added r/s=0 validation and recId range checking, and 3) ecsign() added d/z=0 validation. The high confidence for ecverify/ecrecover comes from direct correlation with CWE-347 and the attack vector described - signature forgery through invalid zero-value signatures. The medium confidence for ecsign reflects that while missing d/z validation could enable other attacks, it wasn't the primary signature forgery path described in the advisory.

Vulnerable functions

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WAF Protection Rules

WAF Rule

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Reasoning

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