Security Update for Microsoft ASP.NET Core (DoS) (August 2020)

high Nessus Plugin ID 139496

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Synopsis

The Microsoft ASP.NET Core installations on the remote host contain vulnerable packages.

Description

The Microsoft ASP.NET Core installation on the remote host is version 2.1.x < 2.1.21, or 3.1.x < 3.1.7. It is, therefore, affected by a denial of service (DoS) vulnerability when ASP.NET Core improperly handles web requests. An unauthenticated, remote attacker can exploit this issue, via sending a specially crafted requests to the ASP.NET Core application to cause the application to stop responding.

Solution

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

Plugin Details

Severity: High

ID: 139496

File Name: smb_nt_ms20_aug_aspdotnet_core.nasl

Version: 1.8

Type: local

Agent: windows

Family: Windows

Published: 8/11/2020

Updated: 12/5/2022

Configuration: Enable thorough checks

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2020-1597

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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:U/RL:O/RC:C

Vulnerability Information

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

Required KB Items: installed_sw/ASP .NET Core Windows

Exploit Ease: No known exploits are available

Patch Publication Date: 8/11/2020

Vulnerability Publication Date: 8/11/2020

Reference Information

CVE: CVE-2020-1597

IAVA: 2020-A-0354-S

Detections

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