Описание
Improper Verification of Cryptographic Signature in starkbank-ecdsa
The verify function in the Stark Bank Python ECDSA library (starkbank-ecdsa) 2.0.0 fails to check that the signature is non-zero, which allows attackers to forge signatures on arbitrary messages.
Ссылки
- https://nvd.nist.gov/vuln/detail/CVE-2021-43572
- https://github.com/starkbank/ecdsa-python/commit/d136170666e9510eb63c2572551805807bd4c17f
- https://github.com/pypa/advisory-database/tree/main/vulns/starkbank-ecdsa/PYSEC-2021-426.yaml
- https://github.com/starkbank/ecdsa-python/releases/tag/v2.0.1
- https://research.nccgroup.com/2021/11/08/technical-advisory-arbitrary-signature-forgery-in-stark-bank-ecdsa-libraries
Пакеты
Наименование
starkbank-ecdsa
pip
Затронутые версииВерсия исправления
< 2.0.1
2.0.1
Связанные уязвимости
CVSS3: 9.8
nvd
около 4 лет назад
The verify function in the Stark Bank Python ECDSA library (aka starkbank-escada or ecdsa-python) before 2.0.1 fails to check that the signature is non-zero, which allows attackers to forge signatures on arbitrary messages.