Security Update for Microsoft .NET Core (July 2023)

high Nessus Plugin ID 178193

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_Jul_11 advisory.

- .NET and Visual Studio Elevation of Privilege Vulnerability (CVE-2023-33127)

- ASP.NET and Visual Studio Security Feature Bypass Vulnerability (CVE-2023-33170)

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.

See Also

https://dotnet.microsoft.com/download/dotnet/6.0

https://dotnet.microsoft.com/download/dotnet/7.0

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-33127

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-33170

https://support.microsoft.com/help/5028705

https://support.microsoft.com/help/5028706

http://www.nessus.org/u?a31bd8f7

http://www.nessus.org/u?85349fa0

Plugin Details

Severity: High

ID: 178193

File Name: smb_nt_ms23_jul_dotnet_core.nasl

Version: 1.2

Type: local

Agent: windows

Family: Windows

Published: 7/12/2023

Updated: 8/11/2023

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

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-2023-33170

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.1

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/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: 7/11/2023

Vulnerability Publication Date: 7/11/2023

Reference Information

CVE: CVE-2023-33127, CVE-2023-33170

IAVA: 2023-A-0340-S