GHSA-v5rv-hpxg-8x49Medium
Signature validation bypass in ServiceStack
🔗 CVE IDs covered (1)
📋 Description
ServiceStack before 5.9.2 mishandles JWT signature verification unless an application has a custom ValidateToken function that establishes a valid minimum length for a signature.
🎯 Affected products1
- nuget/ServiceStack:< 5.9.2
🔗 References (8)
- https://nvd.nist.gov/vuln/detail/CVE-2020-28042
- https://github.com/ServiceStack/ServiceStack/commit/540d4060e877a03ae95343c1a8560a26768585ee
- https://forums.servicestack.net/t/servicestack-v5-9-2-released/8850
- https://snyk.io/vuln/SNYK-DOTNET-SERVICESTACK-1035519
- https://www.nuget.org/packages/ServiceStack/
- https://www.shielder.it/advisories/servicestack-jwt-signature-verification-bypass/
- https://www.shielder.it/blog/2020/11/re-discovering-a-jwt-authentication-bypass-in-servicestack/
- https://github.com/advisories/GHSA-v5rv-hpxg-8x49