Authentication Bypass Affecting package, versions [,4.0.2) [4.3,4.5.4)

  • Attack Complexity


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  • snyk-id


  • published

    12 May 2017

  • disclosed

    12 May 2017

  • credit

    Mikhail Shcherbakov

How to fix?

Upgrade System.Net.Http.WinHttpHandler to version 4.0.2, 4.5.4 or higher.


Affected versions of this package are vulnerable to Authentication Bypass. The ASP.NET Core fails to properly sanitize the _Web Request Handler_ component, allowing an attacker to spoof web requests and bypass authentication.