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


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.11% (46th percentile)

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  • Snyk IDSNYK-DOTNET-MICROSOFTASPNETCOREMVCAPIEXPLORER-60112
  • published12 May 2017
  • disclosed12 May 2017
  • creditMikhail Shcherbakov

Introduced: 12 May 2017

CVE-2017-0256  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

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

Overview

Microsoft.AspNetCore.Mvc.ApiExplorer is the explorer functionality for discovering metadata such as the list of controllers and actions, and their URLs and allowed HTTP methods.

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.

CVSS Scores

version 3.1