CVE-2020-5261

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Summary

CVECVE-2020-5261
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-03-25 02:15:00 UTC
Updated2021-03-24 13:15:00 UTC
DescriptionSaml2 Authentication services for ASP.NET (NuGet package Sustainsys.Saml2) greater than 2.0.0, and less than version 2.5.0 has a faulty implementation of Token Replay Detection. Token Replay Detection is an important defence in depth measure for Single Sign On solutions. The 2.5.0 version is patched. Note that version 1.0.1 is not affected. It has a correct Token Replay Implementation and is safe to use. Saml2 Authentication services for ASP.NET (NuGet package Sustainsys.Saml2) greater than 2.0.0, and less than version 2.5.0 have a faulty implementation of Token Replay Detection. Token Replay Detection is an important defense measure for Single Sign On solutions. The 2.5.0 version is patched. Note that version 1.0.1 and prior versions are not affected. These versions have a correct Token Replay Implementation and are safe to use.

Risk And Classification

Problem Types: CWE-294

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Simplesamlphp Saml2 All All All All
Application Simplesamlphp Saml2 All All All All
Application Sustainsys Saml2 All All All All

References

ReferenceSourceLinkTags
Fix token replay detection · Sustainsys/Saml2@e58e0a1 · GitHub MISC github.com Patch, Third Party Advisory
Missing Token Replay Detection · Advisory · Sustainsys/Saml2 · GitHub CONFIRM github.com Third Party Advisory
Missing Token Replay Detection in 2.X · Issue #711 · Sustainsys/Saml2 · GitHub MISC github.com Issue Tracking, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 983864 Dotnet (nuget) Security Update for Sustainsys.Saml2 (GHSA-g6j2-ch25-5mmv)
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