CORS Bypass Affecting microsoft.aspnet.mvc.cors package, versions [,1.0.6)[1.1,1.1.6)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
21.43% (96th percentile)

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  • Snyk IDSNYK-DOTNET-MICROSOFTASPNETMVCCORS-60127
  • published20 Nov 2017
  • disclosed15 Nov 2017
  • creditUnknown

Introduced: 15 Nov 2017

CVE-2017-8700  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

Upgrade Microsoft.AspNet.Mvc.Cors to versions 1.0.6, 1.1.5 or higher.

Overview

Microsoft.AspNet.Mvc.Cors is the core runtime components of ASP.NET MVC.

Affected versions of this package are vulnerable to CORS Bypass, which can lead to Information Exposure.

ASP.NET Core 1.0, 1.1, and 2.0 allow an attacker to bypass Cross-origin Resource Sharing (CORS) configurations and retrieve normally restricted content from a web application, aka "ASP.NET Core Information Disclosure Vulnerability".

CVSS Base Scores

version 3.1