Spoofing attack in Microsoft .NET Core - CVE-2022-34716

Vulnerability identifier: #VU66307

CSH Severity: Medium

CVSS v4: 8.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2022-34716

CWE-ID: CWE-451

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to incorrect processing of user-supplied data in the .NET. A remote attacker can spoof page content.

Microsoft .NET Core
rh-dotnet31-dotnet (Red Hat package)
dotnet3.1 (Red Hat package)
rh-dotnet60-dotnet (Red Hat package)
dotnet6.0 (Red Hat package)
dotnet-targeting-pack-3.1
dotnet-runtime-3.1
dotnet-hostfxr-3.1
dotnet-apphost-pack-3.1
aspnetcore-targeting-pack-3.1
aspnetcore-runtime-3.1
dotnet3.1
dotnet-templates-3.1
dotnet-sdk-3.1-source-built-artifacts
dotnet-sdk-3.1
aspnetcore-runtime-6.0
aspnetcore-targeting-pack-6.0
dotnet-apphost-pack-6.0
dotnet-host
dotnet-hostfxr-6.0
dotnet-runtime-6.0
dotnet-targeting-pack-6.0
dotnet6.0
dotnet
dotnet-sdk-6.0
dotnet-sdk-6.0-source-built-artifacts
dotnet-templates-6.0
netstandard-targeting-pack-2.1
Anolis OS
Red Hat CodeReady Linux Builder for x86_64
Red Hat Enterprise Linux for x86_64
Red Hat CodeReady Linux Builder for IBM z Systems
Red Hat CodeReady Linux Builder for ARM 64
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for IBM z Systems
Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Fedora
IBM Robotic Process Automation

Install updates from vendor's website.

rh-dotnet31-dotnet (Red Hat package) - update to 3.1.422-1.el7_9
dotnet3.1 (Red Hat package) - update to 3.1.422-1.el8_6
rh-dotnet60-dotnet (Red Hat package) - update to 6.0.108-1.el7_9
dotnet6.0 (Red Hat package) - addressed in versions 6.0.108-1.el8_6, 6.0.108-1.el9_0
dotnet-targeting-pack-3.1 - update to 3.1.28-1.0.1
dotnet-runtime-3.1 - update to 3.1.28-1.0.1
dotnet-hostfxr-3.1 - update to 3.1.28-1.0.1
dotnet-apphost-pack-3.1 - update to 3.1.28-1.0.1
aspnetcore-targeting-pack-3.1 - update to 3.1.28-1.0.1
aspnetcore-runtime-3.1 - update to 3.1.28-1.0.1
dotnet3.1 - addressed in versions 3.1.422-1.fc35, 3.1.422-1.fc36
dotnet-templates-3.1 - update to 3.1.422-1.0.1
dotnet-sdk-3.1-source-built-artifacts - update to 3.1.422-1.0.1
dotnet-sdk-3.1 - update to 3.1.422-1.0.1
aspnetcore-runtime-6.0 - update to 6.0.8-1.0.1
aspnetcore-targeting-pack-6.0 - update to 6.0.8-1.0.1
dotnet-apphost-pack-6.0 - update to 6.0.8-1.0.1
dotnet-host - update to 6.0.8-1.0.1
dotnet-hostfxr-6.0 - update to 6.0.8-1.0.1
dotnet-runtime-6.0 - update to 6.0.8-1.0.1
dotnet-targeting-pack-6.0 - update to 6.0.8-1.0.1
dotnet6.0 - addressed in versions 6.0.108-1.fc35, 6.0.108-1.fc36, 6.0.108-3.fc37, 6.0.109-1.fc37
dotnet - update to 6.0.108-1.0.1
dotnet-sdk-6.0 - update to 6.0.108-1.0.1
dotnet-sdk-6.0-source-built-artifacts - update to 6.0.108-1.0.1
dotnet-templates-6.0 - update to 6.0.108-1.0.1
netstandard-targeting-pack-2.1 - update to 6.0.108-1.0.1
IBM Robotic Process Automation - update to 21.0.5

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-34716

• Spoofing attack in Microsoft .NET
• Red Hat Enterprise Linux 7 update for .NET Core 3.1
• Red Hat Enterprise Linux 7 update for .NET 6.0
• Red Hat Enterprise Linux 9 update for .NET 6.0
• Red Hat Enterprise Linux 8 update for .NET 6.0
• Red Hat Enterprise Linux 8 update for .NET Core 3.1
• Spoofing attack in IBM Robotic Process Automation
• Fedora 36 update for dotnet6.0
• Fedora 35 update for dotnet6.0
• Fedora 36 update for dotnet3.1
• Fedora 35 update for dotnet3.1
• Fedora 37 update for dotnet6.0
• Fedora 37 update for dotnet6.0
• Anolis OS update for dotnet3.1
• Anolis OS update for dotnet6.0