CVE-2017-0248

High

Description

Microsoft .NET Framework 2.0, 3.5, 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2 and 4.7 allow an attacker to bypass Enhanced Security Usage taggings when they present a certificate that is invalid for a specific use, aka ".NET Security Feature Bypass Vulnerability."

SeverityHigh
CVSS7.5
Exploit probability—
ProductMicrosoft .net Framework
PublishedMay 12, 2017
First seenMay 12, 2017

How to fix

Update
  • Microsoft.AspNetCore.Mvc1.0.4, 1.1.3 or later
  • Microsoft.AspNetCore.Mvc.Core1.0.4, 1.1.3 or later
  • System.Net.Http4.1.2, 4.3.2 or later
  • System.Text.Encodings.Web4.0.1, 4.3.1 or later
  • System.Net.Http.WinHttpHandler4.0.1, 4.3.1 or later
  • System.Net.Security4.0.1, 4.3.1 or later
  • System.Net.WebSockets.Client4.0.1, 4.3.1 or later
  • Microsoft.AspNetCore.Mvc.Abstractions1.0.4, 1.1.3 or later
  • Microsoft.AspNetCore.Mvc.ApiExplorer1.0.4, 1.1.3 or later
  • Microsoft.AspNetCore.Mvc.Cors1.0.4, 1.1.3 or later
  • Microsoft.AspNetCore.Mvc.DataAnnotations1.0.4, 1.1.3 or later
  • Microsoft.AspNetCore.Mvc.Formatters.Json1.0.4, 1.1.3 or later

Affected products

ProductAffected versionsFixed in
microsoft .net_framework2.0, 3.5, 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7—
Microsoft.AspNetCore.MvcNuGet1.0.0 ≤ v < 1.0.4, 1.1.0 ≤ v < 1.1.31.0.4, 1.1.3
Microsoft.AspNetCore.Mvc.CoreNuGet1.0.0 ≤ v < 1.0.4, 1.1.0 ≤ v < 1.1.31.0.4, 1.1.3
System.Net.HttpNuGet4.1.1 ≤ v < 4.1.2, 4.3.1 ≤ v < 4.3.24.1.2, 4.3.2
System.Text.Encodings.WebNuGet4.0.0 ≤ v < 4.0.1, 4.3.0 ≤ v < 4.3.14.0.1, 4.3.1
System.Net.Http.WinHttpHandlerNuGet4.0.0 ≤ v < 4.0.1, 4.3.0 ≤ v < 4.3.14.0.1, 4.3.1
System.Net.SecurityNuGet4.0.0 ≤ v < 4.0.1, 4.3.0 ≤ v < 4.3.14.0.1, 4.3.1
System.Net.WebSockets.ClientNuGet4.0.0 ≤ v < 4.0.1, 4.3.0 ≤ v < 4.3.14.0.1, 4.3.1
Microsoft.AspNetCore.Mvc.AbstractionsNuGet1.0.0 ≤ v < 1.0.4, 1.1.0 ≤ v < 1.1.31.0.4, 1.1.3
Microsoft.AspNetCore.Mvc.ApiExplorerNuGet1.0.0 ≤ v < 1.0.4, 1.1.0 ≤ v < 1.1.31.0.4, 1.1.3
Microsoft.AspNetCore.Mvc.CorsNuGet1.0.0 ≤ v < 1.0.4, 1.1.0 ≤ v < 1.1.31.0.4, 1.1.3
Microsoft.AspNetCore.Mvc.DataAnnotationsNuGet1.0.0 ≤ v < 1.0.4, 1.1.0 ≤ v < 1.1.31.0.4, 1.1.3
Microsoft.AspNetCore.Mvc.Formatters.JsonNuGet1.0.0 ≤ v < 1.0.4, 1.1.0 ≤ v < 1.1.31.0.4, 1.1.3
Microsoft.AspNetCore.Mvc.Formatters.XmlNuGet1.0.0 ≤ v < 1.0.4, 1.1.0 ≤ v < 1.1.31.0.4, 1.1.3
Microsoft.AspNetCore.Mvc.LocalizationNuGet1.0.0 ≤ v < 1.0.4, 1.1.0 ≤ v < 1.1.31.0.4, 1.1.3
Microsoft.AspNetCore.Mvc.Razor.HostNuGet1.0.0 ≤ v < 1.0.4, 1.1.0 ≤ v < 1.1.31.0.4, 1.1.3
Microsoft.AspNetCore.Mvc.RazorNuGet1.0.0 ≤ v < 1.0.4, 1.1.0 ≤ v < 1.1.31.0.4, 1.1.3
Microsoft.AspNetCore.Mvc.TagHelpersNuGet1.0.0 ≤ v < 1.0.4, 1.1.0 ≤ v < 1.1.31.0.4, 1.1.3
Microsoft.AspNetCore.Mvc.ViewFeaturesNuGet1.0.0 ≤ v < 1.0.4, 1.1.0 ≤ v < 1.1.31.0.4, 1.1.3
Microsoft.AspNetCore.Mvc.WebApiCompatShimNuGet1.0.0 ≤ v < 1.0.4, 1.1.0 ≤ v < 1.1.31.0.4, 1.1.3

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