Security Update for Microsoft ASP.NET Core (DoS) (May 2019)

high Nessus Plugin ID 125164
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.


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


The Microsoft ASP.NET Core installation on the remote host is version 2.1.x < 2.1.11, 2.2.x < 2.2.5. It is, therefore, affected by a denial of service (DoS) vulnerability when ASP.NET Core improperly handles web requests. An unauthenticated, remote attacker could exploit this issue, via sending a specially crafted requests to the .NET Core application, to cause the application to stop responding.


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

See Also

Plugin Details

Severity: High

ID: 125164

File Name: smb_nt_ms19_may_aspdotnet_core.nasl

Version: 1.4

Type: local

Agent: windows

Family: Windows

Published: 5/16/2019

Updated: 10/30/2019

Dependencies: microsoft_asp_dotnet_core_win.nbin

Risk Information

CVSS Score Source: CVE-2019-0980


Risk Factor: Low

Score: 3.6


Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

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


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

Vulnerability Information

CPE: cpe:/a:microsoft:aspnet_core

Required KB Items: installed_sw/ASP .NET Core Windows

Exploit Ease: No known exploits are available

Patch Publication Date: 5/14/2019

Vulnerability Publication Date: 5/14/2019

Reference Information

CVE: CVE-2019-0980, CVE-2019-0981, CVE-2019-0982

BID: 108207, 108208