<p>Upgrade <code>Microsoft.AspNetCore.Mvc.Core</code> to version 1.0.4, 1.1.3 or higher.</p>

Authentication Bypass Affecting microsoft.aspnetcore.mvc.core package, versions [1,1.0.4) [1.1,1.1.3)

Snyk CVSS

Attack Complexity Low

Threat Intelligence

EPSS 0.11% (43^rd percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk ID SNYK-DOTNET-MICROSOFTASPNETCOREMVCCORE-60092
published 12 May 2017
disclosed 12 May 2017
credit Mikhail Shcherbakov

Report a new vulnerability Found a mistake?

Introduced: 12 May 2017

CVE-2017-0256 Open this link in a new tab CWE-20 Open this link in a new tab

How to fix?

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

Overview

Microsoft.AspNetCore.Mvc.Core contains common action result types, attribute routing, application model conventions, API explorer, application parts, filters, formatters, model binding, and more.

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.