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.
References
Link | Resource |
---|---|
https://github.com/starkbank/ecdsa-dotnet/releases/tag/v1.3.2 | Third Party Advisory |
https://research.nccgroup.com/2021/11/08/technical-advisory-arbitrary-signature-forgery-in-stark-bank-ecdsa-libraries/ | Exploit Third Party Advisory |
Configurations
History
12 Nov 2021, 20:01
Type | Values Removed | Values Added |
---|---|---|
CPE | cpe:2.3:a:starkbank:ecdsa-dotnet:1.3.2:*:*:*:*:*:*:* | |
CVSS |
v2 : v3 : |
v2 : 7.5
v3 : 9.8 |
References | (MISC) https://github.com/starkbank/ecdsa-dotnet/releases/tag/v1.3.2 - Third Party Advisory | |
References | (MISC) https://research.nccgroup.com/2021/11/08/technical-advisory-arbitrary-signature-forgery-in-stark-bank-ecdsa-libraries/ - Exploit, Third Party Advisory | |
CWE | CWE-347 |
09 Nov 2021, 22:15
Type | Values Removed | Values Added |
---|---|---|
New CVE |
Information
Published : 2021-11-09 22:15
Updated : 2023-12-10 14:09
NVD link : CVE-2021-43569
Mitre link : CVE-2021-43569
CVE.ORG link : CVE-2021-43569
JSON object : View
Products Affected
starkbank
- ecdsa-dotnet
CWE
CWE-347
Improper Verification of Cryptographic Signature