CVE-2020-1045 (High) detected in microsoft.netcore.app.2.1.0.nupkg

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CVE-2020-1045 - High Severity Vulnerability

Vulnerable Library - microsoft.netcore.app.2.1.0.nupkg

A set of .NET API's that are included in the default .NET Core application model. caa7b7e2bad98e56a687fb5cbaf60825500800f7 When using NuGet 3.x this package requires at least version 3.4.

Library home page: https://api.nuget.org/packages/microsoft.netcore.app.2.1.0.nupkg

Path to dependency file: /desktop/src/Plexus.Interop.Transport.Protocol.Tests/Plexus.Interop.Transport.Protocol.Tests.csproj

Path to vulnerable library: /ackages/microsoft.netcore.app/2.1.0/microsoft.netcore.app.2.1.0.nupkg

Dependency Hierarchy:

• :x: microsoft.netcore.app.2.1.0.nupkg (Vulnerable Library)

Found in HEAD commit: 8d1e24260d1985acc52e5d1710bcc43fcf3848ca

Found in base branch: master

Vulnerability Details

A security feature bypass vulnerability exists in the way Microsoft ASP.NET Core parses encoded cookie names.

The ASP.NET Core cookie parser decodes entire cookie strings which could allow a malicious attacker to set a second cookie with the name being percent encoded.

The security update addresses the vulnerability by fixing the way the ASP.NET Core cookie parser handles encoded names.

Publish Date: 2020-09-11

URL: CVE-2020-1045

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

Release Date: 2020-09-11

Fix Resolution: Microsoft.AspNetCore.App - 2.1.22, Microsoft.AspNetCore.All - 2.1.22,Microsoft.NETCore.App - 2.1.22, Microsoft.AspNetCore.Http - 2.1.22

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