Improper Verification of Cryptographic Signature in starkbank-ecdsa

GHSA-q9q6-f556-gpm7 · CVE-2021-43571

Published Nov 10, 2021 · Modified Nov 8, 2023

Description

The verify function in the Stark Bank Node.js ECDSA library (ecdsa-node) 1.1.2 fails to check that the signature is non-zero, which allows attackers to forge signatures on arbitrary messages.

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2021-43571
PACKAGE https://github.com/starkbank/ecdsa-node
WEB https://github.com/starkbank/ecdsa-node/releases/tag/v1.1.3
WEB https://research.nccgroup.com/2021/11/08/technical-advisory-arbitrary-signature-forgery-in-stark-bank-ecdsa-libraries

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