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Microsoft ASP.NET Core Information Disclosure Vulnerability
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
This host is missing an important security update according to Microsoft advisory (CVE-2017-8700).
Insight
Insight
The flaw exists due to an unspecified error where Cross-Origin Resource Sharing (CORS) can be bypassed.
Affected Software
Affected Software
Microsoft ASP.NET Core 1.0 and ASP.NET Core 1.1 using 'Microsoft.AspNetCore.Mvc.Core' package or 'Microsoft.AspNetCore.Mvc.Cors' package versions 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5, 1.1.0, 1.1.1, 1.1.2, 1.1.3 and 1.1.4
Detection Method
Detection Method
Checks if a vulnerable version is present on the target host.
Solution
Solution
Upgrade to Microsoft ASP.NET Core 2.0 or higher. For Microsoft ASP.NET Core 1.x upgrade 'Microsoft.AspNetCore.Mvc.Core' and 'Microsoft.AspNetCore.Mvc.Cors' packages to version 1.0.6 or 1.1.5 or later. Please see the references for more info.