Security Update for Microsoft .NET Core (August 2023)

high Nessus Plugin ID 179502

Language:

Synopsis

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

Description

The version of tested product installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the 2023_Aug_08 advisory.

- .NET and Visual Studio Remote Code Execution Vulnerability (CVE-2023-35390)

- ASP.NET Core SignalR and Visual Studio Information Disclosure Vulnerability (CVE-2023-35391)

- .NET Core and Visual Studio Denial of Service Vulnerability (CVE-2023-38178)

- .NET and Visual Studio Denial of Service Vulnerability (CVE-2023-38180)

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: 179502

File Name: smb_nt_ms23_aug_dotnet_core.nasl

Version: 1.4

Type: local

Agent: windows

Family: Windows

Published: 8/8/2023

Updated: 9/15/2023

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.4

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

CVSS Score Source: CVE-2023-35391

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7.2

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

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

CVSS Score Source: CVE-2023-35390

Vulnerability Information

CPE: cpe:/a:microsoft:.net_core

Required KB Items: installed_sw/.NET Core Windows

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 8/8/2023

Vulnerability Publication Date: 8/8/2023

CISA Known Exploited Vulnerability Due Dates: 8/30/2023

Reference Information

CVE: CVE-2023-35390, CVE-2023-35391, CVE-2023-38178, CVE-2023-38180

IAVA: 2023-A-0404-S

Detections

Analytics