CVE-2017-0249 (High) detected in system.text.encodings.web.4.0.0.nupkg

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CVE-2017-0249 - High Severity Vulnerability

Vulnerable Library - system.text.encodings.web.4.0.0.nupkg

Provides types for encoding and escaping strings for use in JavaScript, HyperText Markup Language (H...

Library home page: https://api.nuget.org/packages/system.text.encodings.web.4.0.0.nupkg

Path to dependency file: /SDK/SDK.csproj

Path to vulnerable library: /stem.text.encodings.web/4.0.0/system.text.encodings.web.4.0.0.nupkg

Dependency Hierarchy:

• ❌ system.text.encodings.web.4.0.0.nupkg (Vulnerable Library)

Found in HEAD commit: 2cdcbe42d2efe636b5e9b1d4c29c9da6e2c9b927

Found in base branch: master

Vulnerability Details

An elevation of privilege vulnerability exists when the ASP.NET Core fails to properly sanitize web requests.

Publish Date: 2017-05-12

URL: CVE-2017-0249

CVSS 3 Score Details (7.3)

Base Score Metrics:

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

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: aspnet/Announcements#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 - 4.0.2,4.3.1;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