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.
Microsoft .NET Framework 2.0, 3.5, 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2 and 4.7 allow an attacker to bypass Enhanced Security Usage taggings when they present a certificate that is invalid for a specific use, aka ".NET Security Feature Bypass 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: /Console_Test/Console_Test.csproj
Path to vulnerable library: /home/wss-scanner/.nuget/packages/system.text.encodings.web/4.0.0/system.text.encodings.web.4.0.0.nupkg
Found in HEAD commit: f1a27537d65e394cad90ecbd44b007fe1cc2a08d
Vulnerabilities
Details
CVE-2021-26701
### Vulnerable Library - system.text.encodings.web.4.0.0.nupkgProvides 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: /Console_Test/Console_Test.csproj
Path to vulnerable library: /home/wss-scanner/.nuget/packages/system.text.encodings.web/4.0.0/system.text.encodings.web.4.0.0.nupkg
Dependency Hierarchy: - :x: **system.text.encodings.web.4.0.0.nupkg** (Vulnerable Library)
Found in HEAD commit: f1a27537d65e394cad90ecbd44b007fe1cc2a08d
### Vulnerability Details.NET Core Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-24112.
Publish Date: 2021-02-25
URL: CVE-2021-26701
### CVSS 3 Score Details (9.8)Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: High - Integrity Impact: High - Availability Impact: High
For more information on CVSS3 Scores, click here. ### Suggested FixType: Upgrade version
Release Date: 2021-02-25
Fix Resolution: System.Text.Encodings.Web - 4.5.1,4.7.2,5.0.1
:rescue_worker_helmet: Automatic Remediation is available for this issueCVE-2017-0247
### Vulnerable Library - system.text.encodings.web.4.0.0.nupkgProvides 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: /Console_Test/Console_Test.csproj
Path to vulnerable library: /home/wss-scanner/.nuget/packages/system.text.encodings.web/4.0.0/system.text.encodings.web.4.0.0.nupkg
Dependency Hierarchy: - :x: **system.text.encodings.web.4.0.0.nupkg** (Vulnerable Library)
Found in HEAD commit: f1a27537d65e394cad90ecbd44b007fe1cc2a08d
### Vulnerability DetailsA 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 FixType: 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
:rescue_worker_helmet: Automatic Remediation is available for this issueCVE-2017-0248
### Vulnerable Library - system.text.encodings.web.4.0.0.nupkgProvides 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: /Console_Test/Console_Test.csproj
Path to vulnerable library: /home/wss-scanner/.nuget/packages/system.text.encodings.web/4.0.0/system.text.encodings.web.4.0.0.nupkg
Dependency Hierarchy: - :x: **system.text.encodings.web.4.0.0.nupkg** (Vulnerable Library)
Found in HEAD commit: f1a27537d65e394cad90ecbd44b007fe1cc2a08d
### Vulnerability DetailsMicrosoft .NET Framework 2.0, 3.5, 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2 and 4.7 allow an attacker to bypass Enhanced Security Usage taggings when they present a certificate that is invalid for a specific use, aka ".NET Security Feature Bypass Vulnerability."
Publish Date: 2017-05-12
URL: CVE-2017-0248
### 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 FixType: Upgrade version
Origin: https://nvd.nist.gov/vuln/detail/CVE-2017-0248
Release Date: 2017-05-12
Fix Resolution: ClubArcada.Common - 5.0.3,9.0.1;Wyam - 1.4.0;tsqllint - 1.13.0;Microsoft.AspNetCore.Mvc.Core - 1.0.4,1.1.3;Microsoft.AspNetCore.Mvc.Cors - 1.1.3,1.0.4;Microsoft.AspNetCore.Mvc.Localization - 1.1.3,1.0.4;System.Net.Http - 4.1.2,4.3.2;Microsoft.AspNetCore.Mvc.Razor - 1.0.4,1.1.3;System.Net.Http.WinHttpHandler - 4.5.0-rc1,4.5.4,4.3.0-preview1-24530-04;XTG.DataBase.SqlClient - 1.0.1;VitalElement.AvalonBuild.win7-x64 - 0.4.2;System.Net.Security - 4.3.0-preview1-24530-04,4.0.1;Microsoft.AspNetCore.Mvc.ViewFeatures - 1.0.4,1.1.3;Microsoft.AspNetCore.Mvc.TagHelpers - 1.1.3,1.0.4;Microsoft.AspNetCore.Mvc - 1.0.4,1.1.3;LagoVista.IoT.Web.Common - 0.8.112-alpha01270;System.Text.Encodings.Web - 4.3.0-preview1-24530-04,4.0.1;Microsoft.AspNetCore.Mvc.Razor.Host - 1.0.4,1.1.3;MobileTech.QueryFailOverEsMongo - 1.0.1;Microsoft.AspNetCore.Mvc.Formatters.Json - 1.0.4,1.1.3;NugetXray - 1.0.42;Microsoft.AspNetCore.Mvc.WebApiCompatShim - 1.1.3,1.0.4;System.Net.WebSockets.Client - 4.3.2,4.3.0-preview1-24530-04,4.0.1;DataPumpCon - 1.0.1;VitalElement.AvalonBuild.ubuntu.14.04-x64 - 0.4.2;Chutzpah - 4.3.7;LagoVista.IoT.Web.DeviceAdmin - 0.8.112-alpha01362;Microsoft.AspNetCore.Mvc.Formatters.Xml - 1.1.3,1.0.4;SmartLifeLtd - 1.0.1;Microsoft.AspNetCore.Mvc.DataAnnotations - 1.0.4,1.1.3;Boilerplate.Templates - 1.0.0;ResearchAPI - 2.0.0;NSwag.MSBuild - 12.0.8,12.0.0;Nlog.RabbitMQ.Target - 2.5.1;Microsoft.AspNetCore.Mvc.ApiExplorer - 1.1.3,1.0.4;Codecov - 1.0.4;Core.Spire.Presentation - 1.0.1;Microsoft.CodeDom.Providers.DotNetCompilerPlatform - 3.5.0-preview1;Microsoft.AspNetCore.Mvc.Abstractions - 1.0.4,1.1.3;NBench.Runner - 1.1.0;NLog.RabbitMQ.Target - 2.5.4;LagoVista.Web.Identity - 0.8.112-alpha01210;system.net.http - 4.3.0-preview1-24530-04;csx - 1.0.0-beta7,1.0.0-beta10
:rescue_worker_helmet: Automatic Remediation is available for this issueCVE-2017-0249
### Vulnerable Library - system.text.encodings.web.4.0.0.nupkgProvides 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: /Console_Test/Console_Test.csproj
Path to vulnerable library: /home/wss-scanner/.nuget/packages/system.text.encodings.web/4.0.0/system.text.encodings.web.4.0.0.nupkg
Dependency Hierarchy: - :x: **system.text.encodings.web.4.0.0.nupkg** (Vulnerable Library)
Found in HEAD commit: f1a27537d65e394cad90ecbd44b007fe1cc2a08d
### Vulnerability DetailsAn 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 (6.1)Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: Required - Scope: Changed - Impact Metrics: - Confidentiality Impact: Low - Integrity Impact: Low - Availability Impact: None
For more information on CVSS3 Scores, click here. ### Suggested FixType: 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 - 4.0.2,4.3.1;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
:rescue_worker_helmet: Automatic Remediation is available for this issueCVE-2017-0256
### Vulnerable Library - system.text.encodings.web.4.0.0.nupkgProvides 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: /Console_Test/Console_Test.csproj
Path to vulnerable library: /home/wss-scanner/.nuget/packages/system.text.encodings.web/4.0.0/system.text.encodings.web.4.0.0.nupkg
Dependency Hierarchy: - :x: **system.text.encodings.web.4.0.0.nupkg** (Vulnerable Library)
Found in HEAD commit: f1a27537d65e394cad90ecbd44b007fe1cc2a08d
### Vulnerability DetailsA spoofing vulnerability exists when the ASP.NET Core fails to properly sanitize web requests.
Publish Date: 2017-05-12
URL: CVE-2017-0256
### CVSS 3 Score Details (5.3)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: Low - Availability Impact: None
For more information on CVSS3 Scores, click here. ### Suggested FixType: Upgrade version
Origin: https://nvd.nist.gov/vuln/detail/CVE-2017-0256
Release Date: 2017-05-12
Fix Resolution: Microsoft.AspNetCore.Mvc.ApiExplorer - 1.1.3,1.0.4;Codecov - 1.0.4;Core.Spire.Presentation - 1.0.1;Microsoft.AspNetCore.Mvc.Abstractions - 1.1.3,1.0.4;NBench.Runner - 1.1.0;NLog.RabbitMQ.Target - 2.5.4;LagoVista.Web.Identity - 0.8.112-alpha01210;csx - 1.0.0-beta7,1.0.0-beta10;ClubArcada.Common - 5.0.3,9.0.1;Wyam - 1.4.0;tsqllint - 1.13.0;Microsoft.AspNetCore.Mvc.Core - 1.0.4,1.1.3;Microsoft.AspNetCore.Mvc.Cors - 1.0.4,1.1.3;Microsoft.AspNetCore.Mvc.Localization - 1.1.3,1.0.4;System.Net.Http - 4.3.2,4.1.2;Microsoft.AspNetCore.Mvc.Razor - 1.0.4,1.1.3;System.Net.Http.WinHttpHandler - 4.0.2,4.6.0-preview6.19303.8,4.3.0-preview1-24530-04;VitalElement.AvalonBuild.win7-x64 - 0.4.2;System.Net.Security - 4.3.0-preview1-24530-04,4.0.1;Microsoft.AspNetCore.Mvc.ViewFeatures - 1.1.3,1.0.4;Microsoft.AspNetCore.Mvc.TagHelpers - 1.1.3,1.0.4;Microsoft.AspNetCore.Mvc - 1.0.4,1.1.3;LagoVista.IoT.Web.Common - 0.8.112-alpha01270;System.Text.Encodings.Web - 4.0.1,4.3.0-preview1-24530-04;Microsoft.AspNetCore.Mvc.Razor.Host - 1.0.4,1.1.3;MobileTech.QueryFailOverEsMongo - 1.0.1;Microsoft.AspNetCore.Mvc.Formatters.Json - 1.0.4,1.1.3;NugetXray - 1.0.42;Microsoft.AspNetCore.Mvc.WebApiCompatShim - 1.1.3,1.0.4;System.Net.WebSockets.Client - 4.3.0-preview1-24530-04,4.0.1;DataPumpCon - 1.0.1;LazyStackApp - 1.3.0;VitalElement.AvalonBuild.ubuntu.14.04-x64 - 0.4.2;Chutzpah - 4.3.7;LagoVista.IoT.Web.DeviceAdmin - 0.8.112-alpha01362;Microsoft.AspNetCore.Mvc.Formatters.Xml - 1.1.3,1.0.4;SmartLifeLtd - 1.0.1;Microsoft.AspNetCore.Mvc.DataAnnotations - 1.0.4,1.1.3;Boilerplate.Templates - 1.0.0;ResearchAPI - 2.0.0;NSwag.MSBuild - 12.0.8,12.0.0;Nlog.RabbitMQ.Target - 2.5.1
:rescue_worker_helmet: Automatic Remediation is available for this issue:rescue_worker_helmet: Automatic Remediation is available for this issue.