Ubuntu update for dotnet8

1) Improper Authentication

EUVDB-ID: #VU105568

Risk: High

CVSSv4.0: 4.9 [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/E:U/U:Amber]

CVE-ID: CVE-2025-24070

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

Description

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.

Mitigation

Update the affected package dotnet8 to the latest version.

Vulnerable software versions

Ubuntu: 22.04 - 24.10

dotnet9 (Ubuntu package): before 9.0.104-9.0.3-0ubuntu1~24.10.1

dotnet8 (Ubuntu package): before 8.0.114-8.0.14-0ubuntu1~22.04.1

dotnet-sdk-9.0 (Ubuntu package): before 9.0.104-0ubuntu1~24.10.1

dotnet-sdk-8.0 (Ubuntu package): before 8.0.114-0ubuntu1~22.04.1

dotnet-runtime-9.0 (Ubuntu package): before 9.0.3-0ubuntu1~24.10.1

dotnet-runtime-8.0 (Ubuntu package): before 8.0.14-0ubuntu1~22.04.1

dotnet-hostfxr-9.0 (Ubuntu package): before 9.0.3-0ubuntu1~24.10.1

dotnet-hostfxr-8.0 (Ubuntu package): before 8.0.14-0ubuntu1~22.04.1

dotnet-host-9.0 (Ubuntu package): before 9.0.3-0ubuntu1~24.10.1

dotnet-host-8.0 (Ubuntu package): before 8.0.14-0ubuntu1~22.04.1

aspnetcore-runtime-9.0 (Ubuntu package): before 9.0.3-0ubuntu1~24.10.1

aspnetcore-runtime-8.0 (Ubuntu package): before 8.0.14-0ubuntu1~22.04.1

CPE2.3

• cpe:2.3:o:canonical:ubuntu:22.04:*:*:*:*:*:*:*
• cpe:2.3:o:canonical:ubuntu:24.04:*:*:*:*:*:*:*
• cpe:2.3:o:canonical:ubuntu:24.10:*:*:*:*:*:*:*
• cpe:2.3:o:canonical:dotnet9_ubuntu_package:*:*:*:*:*:ubuntu:*:*
• cpe:2.3:o:canonical:dotnet8_ubuntu_package:*:*:*:*:*:ubuntu:*:*
• cpe:2.3:o:canonical:dotnet-sdk-9.0_ubuntu_package:*:*:*:*:*:ubuntu:*:*
• cpe:2.3:o:canonical:dotnet-sdk-8.0_ubuntu_package:*:*:*:*:*:ubuntu:*:*
• cpe:2.3:o:canonical:dotnet-runtime-9.0_ubuntu_package:*:*:*:*:*:ubuntu:*:*
• cpe:2.3:o:canonical:dotnet-runtime-8.0_ubuntu_package:*:*:*:*:*:ubuntu:*:*
• cpe:2.3:o:canonical:dotnet-hostfxr-9.0_ubuntu_package:*:*:*:*:*:ubuntu:*:*
• cpe:2.3:o:canonical:dotnet-hostfxr-8.0_ubuntu_package:*:*:*:*:*:ubuntu:*:*
• cpe:2.3:o:canonical:dotnet-host-9.0_ubuntu_package:*:*:*:*:*:ubuntu:*:*
• cpe:2.3:o:canonical:dotnet-host-8.0_ubuntu_package:*:*:*:*:*:ubuntu:*:*
• cpe:2.3:o:canonical:aspnetcore-runtime-9.0_ubuntu_package:*:*:*:*:*:ubuntu:*:*
• cpe:2.3:o:canonical:aspnetcore-runtime-8.0_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

https://ubuntu.com/security/notices/USN-7345-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.