Security Updates for Microsoft ASP.NET Core (October 2023)

high Nessus Plugin ID 182957

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Synopsis

The Microsoft ASP.NET core installations on the remote host are affected by a denial of service vulnerability.

Description

The version of ASP.NET core installed on the remote host is affected by a denial of service (DoS) vulnerability. The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.

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

Solution

Update ASP.NET Core Runtime to version 6.0.23, 7.0.12, 8.0.0-rc2 or later

Plugin Details

Severity: High

ID: 182957

File Name: smb_nt_ms23_oct_aspdotnet_core.nasl

Version: 1.7

Type: local

Agent: windows

Family: Windows : Microsoft Bulletins

Published: 10/12/2023

Updated: 2/23/2024

Supported Sensors: Frictionless Assessment Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.1

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.4

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

CVSS Score Source: CVE-2023-44487

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 7

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

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

Vulnerability Information

CPE: cpe:/a:microsoft:asp.net_core

Required KB Items: installed_sw/ASP .NET Core Windows

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/10/2023

Vulnerability Publication Date: 10/10/2023

CISA Known Exploited Vulnerability Due Dates: 10/31/2023

Reference Information

CVE: CVE-2023-44487

IAVA: 2023-A-0545-S

IAVB: 2023-B-0083-S

Detections

Analytics