starkbank/ecdsa-dotnet · Security
Improper Verification of Cryptographic Signature in starkbank-ecdsa
- GHSA ID
- GHSA-j3jw-j2j8-2wv9
- CVE ID
- CVE-2021-43569
- Severity
- critical
- Published
- Updated
- CVSS
- 9.8 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS v3
- 9.8 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
The verify function in the Stark Bank .NET ECDSA library (ecdsa-dotnet) 1.3.1 fails to check that the signature is non-zero, which allows attackers to forge signatures on arbitrary messages.
CWEs
- CWE-347 · Improper Verification of Cryptographic Signature