CVE-2017-0247 (Medium) detected in system.net.security.4.3.0.nupkg

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CVE-2017-0247 - Medium Severity Vulnerability

Vulnerable Library - system.net.security.4.3.0.nupkg

Provides types, such as System.Net.Security.SslStream, that uses SSL/TLS protocols to provide secure...

Library home page: https://api.nuget.org/packages/system.net.security.4.3.0.nupkg

Path to dependency file: /desktop/src/Plexus.Interop.Transport.Transmission.WebSockets.Client/Plexus.Interop.Transport.Transmission.WebSockets.Client.csproj

Path to vulnerable library: /ackages/system.net.security/4.3.0/system.net.security.4.3.0.nupkg,/home/wss-scanner/.nuget/packages/system.net.security/4.3.0/system.net.security.4.3.0.nupkg

Dependency Hierarchy:

• :x: system.net.security.4.3.0.nupkg (Vulnerable Library)

Found in HEAD commit: 8d1e24260d1985acc52e5d1710bcc43fcf3848ca

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 (5.5)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Local
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: None
  • Integrity Impact: None
  • Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

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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