Improper Authentication in ASP.NET Core and Visual Studio - CVE-2025-24070

Vulnerability identifier: #VU105568

CSH Severity: High

CVSS v4: 8.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2025-24070

CWE-ID: CWE-287

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to weak authentication in ASP.NET Core and Visual Studio. A remote attacker can bypass authentication process and gain the privileges of the compromised user.

ASP.NET Core
Visual Studio
Red Hat CodeReady Linux Builder for IBM z Systems
Red Hat CodeReady Linux Builder for ARM 64
Red Hat CodeReady Linux Builder for Power, little endian
Red Hat CodeReady Linux Builder for x86_64
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Ubuntu
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
dotnet-runtime-8.0 (Ubuntu package)
aspnetcore-runtime-8.0 (Ubuntu package)
dotnet-hostfxr-8.0 (Ubuntu package)
dotnet-host-8.0 (Ubuntu package)
dotnet-sdk-8.0 (Ubuntu package)
dotnet8.0 (Red Hat package)
dotnet8 (Ubuntu package)
aspnetcore-runtime-9.0 (Ubuntu package)
dotnet-hostfxr-9.0 (Ubuntu package)
dotnet-runtime-9.0 (Ubuntu package)
dotnet-host-9.0 (Ubuntu package)
dotnet-sdk-9.0 (Ubuntu package)
dotnet9.0 (Red Hat package)
dotnet9 (Ubuntu package)

Install updates from vendor's website.

ASP.NET Core - addressed in versions 8.0.14 8.0.14, 9.0.3 9.0.3
Visual Studio - addressed in versions 17.8.19 17.8.19, 17.10.12 17.10.12, 17.12.6 17.12.6, 17.13.3 17.13.3
dotnet-runtime-8.0 (Ubuntu package) - addressed in versions 8.0.14-0ubuntu1~22.04.1, 8.0.14-0ubuntu1~24.04.1, 8.0.14-0ubuntu1~24.10.1
aspnetcore-runtime-8.0 (Ubuntu package) - addressed in versions 8.0.14-0ubuntu1~22.04.1, 8.0.14-0ubuntu1~24.04.1, 8.0.14-0ubuntu1~24.10.1
dotnet-hostfxr-8.0 (Ubuntu package) - addressed in versions 8.0.14-0ubuntu1~22.04.1, 8.0.14-0ubuntu1~24.04.1, 8.0.14-0ubuntu1~24.10.1
dotnet-host-8.0 (Ubuntu package) - addressed in versions 8.0.14-0ubuntu1~22.04.1, 8.0.14-0ubuntu1~24.04.1, 8.0.14-0ubuntu1~24.10.1
dotnet-sdk-8.0 (Ubuntu package) - addressed in versions 8.0.114-0ubuntu1~22.04.1, 8.0.114-0ubuntu1~24.04.1, 8.0.114-0ubuntu1~24.10.1
dotnet8.0 (Red Hat package) - addressed in versions 8.0.114-1.el8_10, 8.0.114-1.el9_4, 8.0.114-1.el9_5
dotnet8 (Ubuntu package) - addressed in versions 8.0.114-8.0.14-0ubuntu1~22.04.1, 8.0.114-8.0.14-0ubuntu1~24.04.1, 8.0.114-8.0.14-0ubuntu1~24.10.1
aspnetcore-runtime-9.0 (Ubuntu package) - update to 9.0.3-0ubuntu1~24.10.1
dotnet-hostfxr-9.0 (Ubuntu package) - update to 9.0.3-0ubuntu1~24.10.1
dotnet-runtime-9.0 (Ubuntu package) - update to 9.0.3-0ubuntu1~24.10.1
dotnet-host-9.0 (Ubuntu package) - update to 9.0.3-0ubuntu1~24.10.1
dotnet-sdk-9.0 (Ubuntu package) - update to 9.0.104-0ubuntu1~24.10.1
dotnet9.0 (Red Hat package) - addressed in versions 9.0.104-1.el8_10, 9.0.104-1.el9_5
dotnet9 (Ubuntu package) - update to 9.0.104-9.0.3-0ubuntu1~24.10.1

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-24070

• Improper Authentication in Microsoft ASP.NET Core and Visual Studio
• Ubuntu update for dotnet8
• Red Hat Enterprise Linux 9 update for .NET 8.0
• Red Hat Enterprise Linux 8 update for .NET 9.0
• Red Hat Enterprise Linux 9 update for .NET 9.0
• Red Hat Enterprise Linux 9 update for .NET 8.0
• Red Hat Enterprise Linux 8 update for .NET 8.0