ghsa-g74q-5xw3-j7q9

Vulnerability from github

Published

2024-02-13 19:49

Modified

2024-03-19 18:00

Summary

Microsoft Security Advisory CVE-2024-21386: .NET Denial of Service Vulnerability

Details

Microsoft Security Advisory CVE-2024-21386: .NET Denial of Service Vulnerability

Executive summary

Microsoft is releasing this security advisory to provide information about a vulnerability in ASP.NET 6.0, ASP.NET 7.0 and, ASP.NET 8.0 . This advisory also provides guidance on what developers can do to update their applications to address this vulnerability.

A vulnerability exists in ASP.NET applications using SignalR where a malicious client can result in a denial-of-service.

Announcement

Announcement for this issue can be found at https://github.com/dotnet/announcements/issues/295

Mitigation factors

Microsoft has not identified any mitigating factors for this vulnerability.

Affected software

Any .NET 6.0 application running on .NET 6.0.26 or earlier.
Any .NET 7.0 application running on .NET 7.0.15 or earlier.
Any .NET 8.0 application running on .NET 8.0.1 or earlier.

Affected Packages

The vulnerability affects any Microsoft .NET Core project if it uses any of affected packages versions listed below

ASP.NET 6.0

ASP.NET 7.0

ASP.NET 8.0

Advisory FAQ

How do I know if I am affected?

If you have a runtime or SDK with a version listed, or an affected package listed in affected software or affected packages , you're exposed to the vulnerability.

How do I fix the issue?

To fix the issue please install the latest version of .NET 8.0 or .NET 7.0 or .NET 6.0. If you have installed one or more .NET SDKs through Visual Studio, Visual Studio will prompt you to update Visual Studio, which will also update your .NET SDKs.
If you have .NET 6.0 or greater installed, you can list the versions you have installed by running the dotnet --info command. You will see output like the following;

``` .NET Core SDK (reflecting any global.json):

Version: 6.0.200 Commit: 8473146e7d

Runtime Environment:

OS Name: Windows OS Version: 10.0.18363 OS Platform: Windows RID: win10-x64 Base Path: C:\Program Files\dotnet\sdk\6.0.300\

Host (useful for support):

Version: 6.0.5 Commit: 8473146e7d

.NET Core SDKs installed:

6.0.200 [C:\Program Files\dotnet\sdk]

.NET Core runtimes installed:

Microsoft.AspNetCore.App 6.0.5 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App] Microsoft.NETCore.App 6.0.5 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App] Microsoft.WindowsDesktop.App 6.0.5 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]

To install additional .NET Core runtimes or SDKs: https://aka.ms/dotnet-download ```

If you're using .NET 8.0, you should download and install .NET 8.0.2 Runtime or .NET 8.0.102 SDK (for Visual Studio 2022 v17.8) from https://dotnet.microsoft.com/download/dotnet-core/8.0.
If you're using .NET 7.0, you should download and install Runtime 7.0.16 or SDK 7.0.116 (for Visual Studio 2022 v17.4) from https://dotnet.microsoft.com/download/dotnet-core/7.0.
If you're using .NET 6.0, you should download and install Runtime 6.0.27 or SDK 6.0.419 from https://dotnet.microsoft.com/download/dotnet-core/6.0.

.NET 6.0, .NET 7.0 and, .NET 8.0 updates are also available from Microsoft Update. To access this either type "Check for updates" in your Windows search, or open Settings, choose Update & Security and then click Check for Updates.

Once you have installed the updated runtime or SDK, restart your apps for the update to take effect.

Additionally, if you've deployed self-contained applications targeting any of the impacted versions, these applications are also vulnerable and must be recompiled and redeployed.

Other Information

Reporting Security Issues

If you have found a potential security issue in .NET 8.0 or .NET 7.0 or .NET 6.0, please email details to secure@microsoft.com. Reports may qualify for the Microsoft .NET Core & .NET 5 Bounty. Details of the Microsoft .NET Bounty Program including terms and conditions are at https://aka.ms/corebounty.

Support

You can ask questions about this issue on GitHub in the .NET GitHub organization. The main repos are located at https://github.com/dotnet/runtime and https://github.com/dotnet/aspnet/. The Announcements repo (https://github.com/dotnet/Announcements) will contain this bulletin as an issue and will include a link to a discussion issue. You can ask questions in the linked discussion issue.

Disclaimer

The information provided in this advisory is provided "as is" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.

External Links

CVE-2024-21386

Revisions

V1.0 (February 13, 2024): Advisory published.

Version 1.0

Last Updated 2024-02-13

Show details on source website

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  "aliases": [
    "CVE-2024-21386"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": true,
    "github_reviewed_at": "2024-02-13T19:49:43Z",
    "nvd_published_at": null,
    "severity": "CRITICAL"
  },
  "details": "# Microsoft Security Advisory CVE-2024-21386: .NET Denial of Service Vulnerability\n\n## Executive summary\n\nMicrosoft is releasing this security advisory to provide information about a vulnerability in ASP.NET 6.0, ASP.NET 7.0 and, ASP.NET 8.0 . This advisory also provides guidance on what developers can do to update their applications to address this vulnerability.\n\nA vulnerability exists in ASP.NET applications using SignalR where a malicious client can result in a denial-of-service.\n\n\n## Announcement\n\nAnnouncement for this issue can be found at https://github.com/dotnet/announcements/issues/295\n\n### Mitigation factors\n\nMicrosoft has not identified any mitigating factors for this vulnerability.\n\n## Affected software\n\n* Any .NET 6.0 application running on .NET 6.0.26 or earlier.\n* Any .NET 7.0 application running on .NET 7.0.15 or earlier.\n* Any .NET 8.0 application running on .NET 8.0.1 or earlier.\n\n## Affected Packages\nThe vulnerability affects any Microsoft .NET Core project if it uses any of affected packages versions listed below\n\n### ASP.NET 6.0\n\nPackage name | Affected version | Patched version\n------------ | ---------------- | -------------------------\n[Microsoft.AspNetCore.App.Runtime.linux-arm](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.linux-arm)               |  \u003c= 6.0.26 | 6.0.27\n[Microsoft.AspNetCore.App.Runtime.linux-arm64](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.linux-arm64)           |  \u003c= 6.0.26 | 6.0.27\n[Microsoft.AspNetCore.App.Runtime.linux-musl-arm](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.linux-musl-arm)     |  \u003c= 6.0.26 | 6.0.27\n[Microsoft.AspNetCore.App.Runtime.linux-musl-arm64](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.linux-musl-arm64) |  \u003c= 6.0.26 | 6.0.27\n[Microsoft.AspNetCore.App.Runtime.linux-musl-x64](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.linux-musl-x64)     |  \u003c= 6.0.26 | 6.0.27\n[Microsoft.AspNetCore.App.Runtime.linux-x64](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.linux-x64)               |  \u003c= 6.0.26 | 6.0.27\n[Microsoft.AspNetCore.App.Runtime.osx-arm64](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.osx-arm64)               |  \u003c= 6.0.26 | 6.0.27\n[Microsoft.AspNetCore.App.Runtime.osx-x64](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.osx-x64)                   |  \u003c= 6.0.26 | 6.0.27\n[Microsoft.AspNetCore.App.Runtime.win-arm](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.win-arm)                   |  \u003c= 6.0.26 | 6.0.27\n[Microsoft.AspNetCore.App.Runtime.win-arm64](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.win-arm64)               |  \u003c= 6.0.26 | 6.0.27\n[Microsoft.AspNetCore.App.Runtime.win-x64](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.win-x64)                   |  \u003c= 6.0.26 | 6.0.27\n[Microsoft.AspNetCore.App.Runtime.win-x86](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.win-x86)                   |  \u003c= 6.0.26 | 6.0.27\n\n\n\n### ASP.NET 7.0\n\nPackage name | Affected version | Patched version\n------------ | ---------------- | -------------------------\n[Microsoft.AspNetCore.App.Runtime.linux-arm](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.linux-arm)               |  \u003c= 7.0.15 | 7.0.16\n[Microsoft.AspNetCore.App.Runtime.linux-arm64](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.linux-arm64)           |  \u003c= 7.0.15 | 7.0.16\n[Microsoft.AspNetCore.App.Runtime.linux-musl-arm](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.linux-musl-arm)     |  \u003c= 7.0.15 | 7.0.16\n[Microsoft.AspNetCore.App.Runtime.linux-musl-arm64](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.linux-musl-arm64) |  \u003c= 7.0.15 | 7.0.16\n[Microsoft.AspNetCore.App.Runtime.linux-musl-x64](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.linux-musl-x64)     |  \u003c= 7.0.15 | 7.0.16\n[Microsoft.AspNetCore.App.Runtime.linux-x64](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.linux-x64)               |  \u003c= 7.0.15 | 7.0.16\n[Microsoft.AspNetCore.App.Runtime.osx-arm64](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.osx-arm64)               |  \u003c= 7.0.15 | 7.0.16\n[Microsoft.AspNetCore.App.Runtime.osx-x64](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.osx-x64)                   |  \u003c= 7.0.15 | 7.0.16\n[Microsoft.AspNetCore.App.Runtime.win-arm](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.win-arm)                   |  \u003c= 7.0.15 | 7.0.16\n[Microsoft.AspNetCore.App.Runtime.win-arm64](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.win-arm64)               |  \u003c= 7.0.15 | 7.0.16\n[Microsoft.AspNetCore.App.Runtime.win-x64](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.win-x64)                   |  \u003c= 7.0.15 | 7.0.16\n[Microsoft.AspNetCore.App.Runtime.win-x86](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.win-x86)                   |  \u003c= 7.0.15 | 7.0.16\n\n### ASP.NET 8.0\nPackage name | Affected version | Patched version\n------------ | ---------------- | -------------------------\n[Microsoft.AspNetCore.App.Runtime.linux-arm](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.linux-arm)               |  \u003c= 8.0.1 | 8.0.2\n[Microsoft.AspNetCore.App.Runtime.linux-arm64](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.linux-arm64)           |  \u003c= 8.0.1 | 8.0.2\n[Microsoft.AspNetCore.App.Runtime.linux-musl-arm](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.linux-musl-arm)     |  \u003c= 8.0.1 | 8.0.2\n[Microsoft.AspNetCore.App.Runtime.linux-musl-arm64](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.linux-musl-arm64) |  \u003c= 8.0.1 | 8.0.2\n[Microsoft.AspNetCore.App.Runtime.linux-musl-x64](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.linux-musl-x64)     |  \u003c= 8.0.1 | 8.0.2\n[Microsoft.AspNetCore.App.Runtime.linux-x64](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.linux-x64)               |  \u003c= 8.0.1 | 8.0.2\n[Microsoft.AspNetCore.App.Runtime.osx-arm64](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.osx-arm64)               |  \u003c= 8.0.1 | 8.0.2\n[Microsoft.AspNetCore.App.Runtime.osx-x64](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.osx-x64)                   |  \u003c= 8.0.1 | 8.0.2\n[Microsoft.AspNetCore.App.Runtime.win-arm](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.win-arm)                   |  \u003c= 8.0.1 | 8.0.2\n[Microsoft.AspNetCore.App.Runtime.win-arm64](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.win-arm64)               |  \u003c= 8.0.1 | 8.0.2\n[Microsoft.AspNetCore.App.Runtime.win-x64](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.win-x64)                   |  \u003c= 8.0.1 | 8.0.2\n[Microsoft.AspNetCore.App.Runtime.win-x86](https://www.nuget.org/packages/Microsoft.AspNetCore.App.Runtime.win-x86)                   |  \u003c= 8.0.1 | 8.0.2\n\n## Advisory FAQ\n\n### How do I know if I am affected?\n\nIf you have a runtime or SDK with a version listed, or an affected package listed in [affected software](#affected-software) or [affected packages](#affected-packages) , you\u0027re exposed to the vulnerability.\n\n### How do I fix the issue?\n\n* To fix the issue please install the latest version of .NET 8.0 or .NET 7.0 or .NET 6.0. If you have installed one or more .NET SDKs through Visual Studio, Visual Studio will prompt you to update Visual Studio, which will also update your .NET  SDKs.\n* If you have .NET 6.0 or greater installed, you can list the versions you have installed by running the `dotnet --info` command. You will see output like the following;\n\n```\n.NET Core SDK (reflecting any global.json):\n\n Version:   6.0.200\n Commit:    8473146e7d\n\nRuntime Environment:\n\n OS Name:     Windows\n OS Version:  10.0.18363\n OS Platform: Windows\n RID:         win10-x64\n Base Path:   C:\\Program Files\\dotnet\\sdk\\6.0.300\\\n\nHost (useful for support):\n\n  Version: 6.0.5\n  Commit:  8473146e7d\n\n.NET Core SDKs installed:\n\n  6.0.200 [C:\\Program Files\\dotnet\\sdk]\n\n.NET Core runtimes installed:\n\n  Microsoft.AspNetCore.App 6.0.5 [C:\\Program Files\\dotnet\\shared\\Microsoft.AspNetCore.App]\n  Microsoft.NETCore.App 6.0.5 [C:\\Program Files\\dotnet\\shared\\Microsoft.NETCore.App]\n  Microsoft.WindowsDesktop.App 6.0.5 [C:\\Program Files\\dotnet\\shared\\Microsoft.WindowsDesktop.App]\n\nTo install additional .NET Core runtimes or SDKs:\n  https://aka.ms/dotnet-download\n```\n\n* If you\u0027re using .NET 8.0, you should download and install .NET 8.0.2  Runtime or .NET 8.0.102 SDK (for Visual Studio 2022 v17.8) from https://dotnet.microsoft.com/download/dotnet-core/8.0.\n* If you\u0027re using .NET 7.0, you should download and install Runtime 7.0.16 or SDK 7.0.116 (for Visual Studio 2022 v17.4) from https://dotnet.microsoft.com/download/dotnet-core/7.0.\n* If you\u0027re using .NET 6.0, you should download and install Runtime 6.0.27 or SDK 6.0.419 from https://dotnet.microsoft.com/download/dotnet-core/6.0.\n\n.NET 6.0, .NET 7.0 and, .NET 8.0 updates are also available from Microsoft Update. To access this either type \"Check for updates\" in your Windows search, or open Settings, choose Update \u0026 Security and then click Check for Updates.\n\nOnce you have installed the updated runtime or SDK, restart your apps for the update to take effect.\n\nAdditionally, if you\u0027ve deployed [self-contained applications](https://docs.microsoft.com/dotnet/core/deploying/#self-contained-deployments-scd) targeting any of the impacted versions, these applications are also vulnerable and must be recompiled and redeployed.\n\n## Other Information\n\n### Reporting Security Issues\n\nIf you have found a potential security issue in .NET 8.0 or .NET 7.0 or .NET 6.0, please email details to secure@microsoft.com. Reports may qualify for the Microsoft .NET Core \u0026 .NET 5 Bounty. Details of the Microsoft .NET Bounty Program including terms and conditions are at \u003chttps://aka.ms/corebounty\u003e.\n\n### Support\n\nYou can ask questions about this issue on GitHub in the .NET GitHub organization. The main repos are located at https://github.com/dotnet/runtime and https://github.com/dotnet/aspnet/. The Announcements repo (https://github.com/dotnet/Announcements) will contain this bulletin as an issue and will include a link to a discussion issue. You can ask questions in the linked discussion issue.\n\n### Disclaimer\n\nThe information provided in this advisory is provided \"as is\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.\n\n### External Links\n\n[CVE-2024-21386]( https://www.cve.org/CVERecord?id=CVE-2024-21386)\n\n### Revisions\n\nV1.0 (February 13, 2024): Advisory published.\n\n_Version 1.0_\n\n_Last Updated 2024-02-13_",
  "id": "GHSA-g74q-5xw3-j7q9",
  "modified": "2024-03-19T18:00:01Z",
  "published": "2024-02-13T19:49:43Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/dotnet/aspnetcore/security/advisories/GHSA-g74q-5xw3-j7q9"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-21386"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/dotnet/aspnetcore"
    },
    {
      "type": "WEB",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21386"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [],
  "summary": "Microsoft Security Advisory CVE-2024-21386: .NET Denial of Service Vulnerability"
}

cve-2024-21386

Vulnerability from cvelistv5

Published

2024-02-13 18:02

Modified

2024-10-09 01:49

Severity ?

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C

References

▼	URL	Tags
	https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21386	vendor-advisory

Impacted products

Vendor

Product

Version

▼

Microsoft

ASP.NET Core 6.0

Version: 6.0 < 6.0.27
cpe:2.3:a:microsoft:asp.net_core:6.0:*:*:*:*:*:*:*

Microsoft	ASP.NET Core 7.0	Version: 7.0.0 < 7.0.16 cpe:2.3:a:microsoft:asp.net_core:7.0:::::::*
Microsoft	ASP.NET Core 8.0	Version: 1.0.0 < 8.0.2 cpe:2.3:a:microsoft:asp.net_core:8.0:::::::*
Microsoft	Microsoft Visual Studio 2022 version 17.4	Version: 17.4.0 < 17.4.16 cpe:2.3:a:microsoft:visual_studio_2022:17.4:::::::*
Microsoft	Microsoft Visual Studio 2022 version 17.6	Version: 17.6.0 < 17.6.12 cpe:2.3:a:microsoft:visual_studio:2022:::::::*
Microsoft	Microsoft Visual Studio 2022 version 17.8	Version: 17.8.0 < 17.8.7 cpe:2.3:a:microsoft:visual_studio:2022:::::::*

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
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            "other": {
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                "id": "CVE-2024-21386",
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                "role": "CISA Coordinator",
                "timestamp": "2024-02-21T20:15:43.069264Z",
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}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

Action not permitted

ghsa-g74q-5xw3-j7q9

Vulnerability from github

Microsoft Security Advisory CVE-2024-21386: .NET Denial of Service Vulnerability

Executive summary

Announcement

Mitigation factors

Affected software

Affected Packages

ASP.NET 6.0

ASP.NET 7.0

ASP.NET 8.0

Advisory FAQ

How do I know if I am affected?

How do I fix the issue?

Other Information

Reporting Security Issues

Support

Disclaimer

External Links

Revisions

cve-2024-21386

Vulnerability from cvelistv5

Tags

Sightings

Nomenclature