Authentication Bypass Affecting microsoft.aspnetcore.mvc.formatters.json Open this link in a new tab package, versions [1,1.0.4) [1.1,1.1.3)


0.0
medium
  • Attack Complexity

    Low

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  • snyk-id

    SNYK-DOTNET-MICROSOFTASPNETCOREMVCFORMATTERSJSON-60076

  • published

    12 May 2017

  • disclosed

    12 May 2017

  • credit

    Mikhail Shcherbakov

How to fix?

Upgrade Microsoft.AspNetCore.Mvc.Formatters.Json to version 1.0.4, 1.1.3 or higher.

Overview

Microsoft.AspNetCore.Mvc.Formatters.Json contains formatters for JSON input and output and for JSON PATCH input using Json.NET.

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