CVE-2020-28042

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Summary

CVECVE-2020-28042
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-11-02 21:15:00 UTC
Updated2020-11-17 17:55:00 UTC
DescriptionServiceStack 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.

Risk And Classification

Problem Types: CWE-347

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Servicestack Servicestack All All All All
Application Servicestack Servicestack All All All All

References

ReferenceSourceLinkTags
ServiceStack v5.9.2 Released - Announcements - ServiceStack Customer Forums MISC forums.servicestack.net Release Notes, Vendor Advisory
Shielder - Re-discovering a JWT Authentication Bypass in ServiceStack MISC www.shielder.it Exploit, Third Party Advisory
Update EquivalentTo to test length & null for equality as well · ServiceStack/ServiceStack@540d406 · GitHub MISC github.com Patch, Third Party Advisory
Shielder - ServiceStack <=5.9.1 JWT signature verification bypass MISC www.shielder.it Exploit, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 983061 Dotnet (nuget) Security Update for ServiceStack (GHSA-v5rv-hpxg-8x49)

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