Improper Verification of Cryptographic Signature Affecting starkbank-ecdsa Open this link in a new tab package, versions [,1.3.2)
Attack Complexity
Low
Availability
High
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications-
snyk-id
SNYK-DOTNET-STARKBANKECDSA-1915558
-
published
11 Nov 2021
-
disclosed
10 Nov 2021
-
credit
Unknown
Introduced: 10 Nov 2021
CVE-2021-43569 Open this link in a new tabHow to fix?
Upgrade starkbank-ecdsa
to version 1.3.2 or higher.
Overview
starkbank-ecdsa is a C# implementation of the Elliptic Curve Digital Signature Algorithm (ECDSA) by Stark Bank.
Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature via the verify function that fails to check that the signature is non-zero, which allows attackers to forge signatures on arbitrary messages.