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., aka 'Microsoft ASP.NET Core Security Feature Bypass Vulnerability'.
CVE-2020-1045 - High Severity Vulnerability
ASP.NET Core default HTTP feature implementations.
Library home page: https://api.nuget.org/packages/microsoft.aspnetcore.http.2.1.0.nupkg
Path to dependency file: /tests/DbLocalizationProvider.Core.AzFuncSample/DbLocalizationProvider.Core.AzFuncSample.csproj
Path to vulnerable library: /home/wss-scanner/.nuget/packages/microsoft.aspnetcore.http/2.1.0/microsoft.aspnetcore.http.2.1.0.nupkg
Dependency Hierarchy: - microsoft.net.sdk.functions.3.0.13.nupkg (Root Library) - microsoft.azure.webjobs.extensions.http.3.0.2.nupkg - :x: **microsoft.aspnetcore.http.2.1.0.nupkg** (Vulnerable Library)
Found in HEAD commit: 6a4dae0d87e02bafb87b57e3a8e54309b1007b25
Found in base branch: master
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., aka 'Microsoft ASP.NET Core Security Feature Bypass Vulnerability'.
Publish Date: 2020-09-11
URL: CVE-2020-1045
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.Type: Upgrade version
Origin: https://github.com/dotnet/announcements/issues/165
Release Date: 2020-10-02
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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