CVE-2023-41890: Sustainsys.Saml2 Insufficient Identity Provider Issuer Validation

CVE-2023-41890 · Severity: low · CVSS 3.1 · Published 2023-09-20

Sustainsys.Saml2 Insufficient Identity Provider Issuer Validation

Technologies: Sustainsys.Saml2 (NuGet). Vendors: NuGet.

Quick answers

Is CVE-2023-41890 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2023-41890 being exploited in the wild.
How severe is CVE-2023-41890?
Low severity, with a CVSS score of 3.1, published 20 September 2023.
Which products and versions are affected?
Kentor.AuthServices (NuGet) ECOSYSTEM:introduced=0,last_affected=0.23.0; Sustainsys.Saml2 (NuGet) ECOSYSTEM:introduced=0,fixed=1.0.3.
Is there a fix for CVE-2023-41890?
Yes. Sustainsys.Saml2 (NuGet): upgrade to 1.0.3 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2023-41890?
Check whether you run Kentor.AuthServices (NuGet) or Sustainsys.Saml2 (NuGet) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • Sustainsys.Saml2 (NuGet): upgrade to 1.0.3 or later
    dotnet add package Sustainsys.Saml2 --version 1.0.3

Affected products

  • Kentor.AuthServices (NuGet) ECOSYSTEM:introduced=0,last_affected=0.23.0
  • Sustainsys.Saml2 (NuGet) ECOSYSTEM:introduced=0,fixed=1.0.3

Identifiers

  • CVE-2023-41890
  • GHSA-fv2h-753j-9g39

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