Privilege Escalation Affecting microsoft.identitymodel.clients.activedirectory package, versions [5.0.0-preview,5.2.0)


0.0
high
  • Attack Complexity

    Low

  • Confidentiality

    High

  • Integrity

    High

  • Availability

    High

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  • snyk-id

    SNYK-DOTNET-MICROSOFTIDENTITYMODELCLIENTSACTIVEDIRECTORY-459437

  • published

    15 Aug 2019

  • disclosed

    14 Aug 2019

  • credit

    Unknown

How to fix?

Upgrade Microsoft.IdentityModel.Clients.ActiveDirectory to version 5.2.0 or higher.

Overview

Microsoft.IdentityModel.Clients.ActiveDirectory is a package for adding authentication functionality to your .NET based client by taking advantage of Windows Server Active Directory and Azure Active Directory.

Affected versions of this package are vulnerable to Privilege Escalation in the way the library caches tokens. This allows an authenticated attacker to perform actions in context of another user.