A denial of service vulnerability exists when the ASP.NET Core fails to properly validate web requests. NOTE: Microsoft has not commented on third-party claims that the issue is that the TextEncoder.EncodeCore function in the System.Text.Encodings.Web package in ASP.NET Core Mvc before 1.0.4 and 1.1.x before 1.1.3 allows remote attackers to cause a denial of service by leveraging failure to properly calculate the length of 4-byte characters in the Unicode Non-Character range.
CVE-2017-0247 - High Severity Vulnerability
Vulnerable Library - system.net.http.4.3.0.nupkg
Provides a programming interface for modern HTTP applications, including HTTP client components that...
Library home page: https://api.nuget.org/packages/system.net.http.4.3.0.nupkg
Path to dependency file: /IoT.SiloHostApp/IoT.SiloHostApp.csproj
Path to vulnerable library: /usr/share/dotnet/sdk/NuGetFallbackFolder/system.net.http/4.3.0/system.net.http.4.3.0.nupkg
Dependency Hierarchy: - microsoft.orleans.server.3.4.3.nupkg (Root Library) - microsoft.orleans.orleansproviders.3.4.3.nupkg - microsoft.orleans.core.3.4.3.nupkg - newtonsoft.json.10.0.3.nupkg - netstandard.library.1.6.1.nupkg - :x: **system.net.http.4.3.0.nupkg** (Vulnerable Library)
Found in base branch: master
Vulnerability Details
A denial of service vulnerability exists when the ASP.NET Core fails to properly validate web requests. NOTE: Microsoft has not commented on third-party claims that the issue is that the TextEncoder.EncodeCore function in the System.Text.Encodings.Web package in ASP.NET Core Mvc before 1.0.4 and 1.1.x before 1.1.3 allows remote attackers to cause a denial of service by leveraging failure to properly calculate the length of 4-byte characters in the Unicode Non-Character range.
Publish Date: 2017-05-12
URL: CVE-2017-0247
CVSS 3 Score Details (7.5)
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: None - Integrity Impact: High - Availability Impact: None
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Origin: https://github.com/aspnet/Announcements/issues/239
Release Date: 2017-05-12
Fix Resolution: System.Text.Encodings.Web - 4.0.1,4.3.1;System.Net.Http - 4.1.2,4.3.2;System.Net.Http.WinHttpHandler - 4.0.2,4.5.4;System.Net.Security - 4.0.1,4.3.1;System.Net.WebSockets.Client - 4.0.1,4.3.1;Microsoft.AspNetCore.Mvc - 1.0.4,1.1.3;Microsoft.AspNetCore.Mvc.Core - 1.0.4,1.1.3;Microsoft.AspNetCore.Mvc.Abstractions - 1.0.4,1.1.3;Microsoft.AspNetCore.Mvc.ApiExplorer - 1.0.4,1.1.3;Microsoft.AspNetCore.Mvc.Cors - 1.0.4,1.1.3;Microsoft.AspNetCore.Mvc.DataAnnotations - 1.0.4,1.1.3;Microsoft.AspNetCore.Mvc.Formatters.Json - 1.0.4,1.1.3;Microsoft.AspNetCore.Mvc.Formatters.Xml - 1.0.4,1.1.3;Microsoft.AspNetCore.Mvc.Localization - 1.0.4,1.1.3;Microsoft.AspNetCore.Mvc.Razor.Host - 1.0.4,1.1.3;Microsoft.AspNetCore.Mvc.Razor - 1.0.4,1.1.3;Microsoft.AspNetCore.Mvc.TagHelpers - 1.0.4,1.1.3;Microsoft.AspNetCore.Mvc.ViewFeatures - 1.0.4,1.1.3;Microsoft.AspNetCore.Mvc.WebApiCompatShim - 1.0.4,1.1.3
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