Security Update for .NET Core (June 2021) (macOS)

medium Nessus Plugin ID 150707

Synopsis

The remote macOS host is affected by a .NET Core denial of service (DoS) vulnerability.

Description

The Microsoft .NET Core installation on the remote host is version 3.1.x prior to 3.1.16, 5.x prior to 5.0.7. It is, therefore, affected by a denial of service vulnerability. An unauthenticated, remote attacker can exploit this to cause the application to stop responding.

Note that Nessus has not tested for this issue 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-core/3.1

https://dotnet.microsoft.com/download/dotnet/5.0

http://www.nessus.org/u?cf839a13

http://www.nessus.org/u?1c41b94c

Plugin Details

Severity: Medium

ID: 150707

File Name: macos_ms21_jun_dotnet_core.nasl

Version: 1.4

Type: local

Agent: macosx

Published: 6/11/2021

Updated: 5/9/2022

Supported Sensors: Nessus Agent

Risk Information

CVSS Score Source: CVE-2021-1721

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

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

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

Vulnerability Information

CPE: cpe:/a:microsoft:.net_core

Required KB Items: installed_sw/.NET Core MacOS

Exploit Ease: No known exploits are available

Patch Publication Date: 6/8/2021

Vulnerability Publication Date: 6/8/2021

Reference Information

CVE: CVE-2021-1721