Microsoft Security Advisory CVE-2023-36038: .NET Denial of Service Vulnerability #52043
Labels
announcement
This issue is an announcement about important functionality change (prevents auto-closing)
Security
Microsoft Security Advisory CVE-2023-36038: .NET Denial of Service Vulnerability
Executive summary
Microsoft is releasing this security advisory to provide information about a vulnerability in ASP.NET Core 8.0 RC2. This advisory also provides guidance on what developers can do to update their applications to address this vulnerability.
A vulnerability exists in ASP.NET IIS where a remote unauthenticated user can issue specially crafted requests to a .NET application which may result in denial of service.
Announcement
Announcement for this issue can be found at dotnet/announcements#286
Mitigation factors
This vulnerability only affects ASP.NET Core applications hosted in IIS. ASP.NET Core applications hosted by Kestrel are not affected.
Affected software
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, you're exposed to the vulnerability.
How do I fix the issue?
dotnet --info
command. You will see output like the following;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-2023-36038
Revisions
V1.0 (November 14, 2023): Advisory published.
Version 1.0
Last Updated 2023-11-14
The text was updated successfully, but these errors were encountered: