Security Update for Microsoft .NET 9 Core (January 2025)

high Nessus Plugin ID 214130

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Synopsis

The remote Windows host is affected by a .NET Core vulnerability

Description

The version of Microsoft .NET 9 Core installed on the remote host is prior to 9.0.1. It is, therefore, affected by multiple vulnerabilities as referenced in the vendor advisory.

- .NET Remote Code Execution Vulnerability (CVE-2025-21171)

- .NET and Visual Studio Remote Code Execution Vulnerability (CVE-2025-21172)

- .NET Elevation of Privilege Vulnerability (CVE-2025-21173)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update .NET Core, remove vulnerable packages and refer to vendor advisory.

Plugin Details

Severity: High

ID: 214130

File Name: smb_nt_ms25_jan_dotnet_core.nasl

Version: 1.2

Type: local

Agent: windows

Family: Windows

Published: 1/14/2025

Updated: 3/19/2025

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.6

Temporal Score: 5.6

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2025-21172

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:microsoft:.net_core

Required KB Items: installed_sw/.NET Core Windows

Exploit Ease: No known exploits are available

Patch Publication Date: 1/14/2025

Vulnerability Publication Date: 1/14/2025

Reference Information

CVE: CVE-2025-21171, CVE-2025-21172, CVE-2025-21173

Detections

Analytics