CVE-2024-42461

CRITICAL

elliptic 6.5.6 - Improper Verification of Cryptographic Signature via BER-Encoded ECDSA Signatures

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2024-42461. PoCs published by fevar54.

AI-analyzed exploit summary This repository provides a technical description and code example for fixing ECDSA and EDDSA signature verification issues in the Wycheproof project, specifically addressing missing checks during signature decoding that allow adding or removing zero bytes. It includes installation instructions and usage examples for verifying signatures using the elliptic library.

Description

In the Elliptic package 6.5.6 for Node.js, ECDSA signature malleability occurs because BER-encoded signatures are allowed.

Exploits (1)

nomisec WRITEUP
by fevar54 · poc
https://github.com/fevar54/CVE-2024-42461

This repository provides a technical description and code example for fixing ECDSA and EDDSA signature verification issues in the Wycheproof project, specifically addressing missing checks during signature decoding that allow adding or removing zero bytes. It includes installation instructions and usage examples for verifying signatures using the elliptic library.

Classification
Writeup 80%
Attack Type
Auth Bypass
Complexity
Moderate
Reliability
Reliable
Target: Wycheproof project (specific version not mentioned)
No auth needed
Prerequisites: Node.js environment · elliptic library
devstral-2 · analyzed Feb 18, 2026 Full analysis →

References (2)

Core 2

Scores

CVSS v3 9.1
EPSS 0.0290
EPSS Percentile 86.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-347
Status published
Products (2)
elliptic_project/elliptic 6.5.6
npm/elliptic 5.2.1 - 6.5.7npm
Published Aug 02, 2024
Tracked Since Feb 18, 2026