| Gói / sản phẩm | Phiên bản bị ảnh hưởng | Phiên bản đã vá |
|---|---|---|
| Microsoft.IdentityModel.JsonWebTokens | ≥ 6.5.0, < 6.34.0≥ 7.0.0-preview, < 7.1.2< 5.7.0 | 6.34.07.1.25.7.0 |
| System.IdentityModel.Tokens.Jwt | ≥ 6.5.0, < 6.34.0≥ 7.0.0-preview, < 7.1.2< 5.7.0 | 6.34.07.1.25.7.0 |
| .net | ≥ 6.0.0, < 6.0.26≥ 7.0.0, < 7.0.15≥ 8.0.0, < 8.0.1 | 6.0.267.0.158.0.1 |
| identity model | ≥ 5.0.0, < 5.7.0≥ 6.0.0, < 6.34.0≥ 7.0.0, < 7.1.2 | 5.7.06.34.07.1.2 |
| visual studio 2022 | ≥ 17.2.0, < 17.2.23≥ 17.4.0, < 17.4.15≥ 17.6.0, < 17.6.11≥ 17.8.0, < 17.8.4 | 17.2.2317.4.1517.6.1117.8.4 |
A Denial of Service vulnerability exists in ASP.NET Core project templates which utilize JWT-based authentication tokens. This vulnerability allows an unauthenticated client to consume arbitrarily large amounts of server memory, potentially triggering an out-of-memory condition on the server and making the server no longer able to respond to legitimate requests.
Announcement for this issue can be found at https://github.com/dotnet/announcements/issues/290
This impacts only .NET Core-based projects that were created using any version of project templates listed in affected software. Other project templates e.g., console applications, MAUI applications, Windows Forms or WPF applications, are not affected.
This impacts only .NET Core-based projects that were created using any version of the below project templates.
If you are you using project templates listed in affected software, you may be exposed to the vulnerability.
If you ever created any of these projects via the dotnet new command or via Visual Studio's File -> New Project gesture, and if you enabled federated authentication at project creation time, your project may be vulnerable. To remediate the vulnerability, use your package manager to update any references you may have to the Microsoft.AspNetCore.Authentication.JwtBearer, Microsoft.AspNetCore.Authentication.OpenIdConnect, and Microsoft.IdentityModel.JsonWebTokens packages to their respective latest versions.
If your project does not reference any of those three packages, you are not exposed to this vulnerability.
To remediate this issue please update to the latest SDK listed below. Simply installing the SDK update is not sufficient to remediate projects already-created / already-deployed projects which existed prior to this update being released.
Bạn đang dùng một trong các sản phẩm này? Quét site để biết có đang lộ phiên bản có lỗ hổng không.
Quét site miễn phídotnet --info command. You will see output like the following;.NET Core SDK (reflecting any global.json):
Version: 7.0.200
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\7.0.300\
Host (useful for support):
Version: 76.0.5
Commit: 8473146e7d
.NET Core SDKs installed:
7.0.200 [C:\Program Files\dotnet\sdk]
.NET Core runtimes installed:
Microsoft.AspNetCore.App 7.0.5 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.NETCore.App 7.0.5 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.WindowsDesktop.App 7.0.5 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
To install additional .NET Core runtimes or SDKs:
https://aka.ms/dotnet-download
.NET 6.0, .NET 7.0, .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.
If you have found a potential security issue in .NET 8.0 or .NET 7.0 or .NET 6.0, please email details to [email protected]. 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.
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.
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.
Morgan Brown, Microsoft Corp.