Security Update for .NET Core SDK (May 2019)

high Nessus Plugin ID 125225
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.

Synopsis

The remote Windows host is affected by a .NET Core SDK vulnerability.

Description

The Microsoft .NET Core SDK installation on the remote host is version 1.x < 1.1.14, 2.1.x < 2.1.507 or 2.1.604, 2.2.x < 2.2.107 or 2.2.204.
It is, therefore, affected by a denial of service (DoS) vulnerability when .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.

Solution

Refer to vendor documentation.

See Also

http://www.nessus.org/u?75f23c84

http://www.nessus.org/u?bc7b707c

http://www.nessus.org/u?d238d2f5

http://www.nessus.org/u?f495ef09

http://www.nessus.org/u?cdcee111

Plugin Details

Severity: High

ID: 125225

File Name: smb_nt_ms19_may_dotnet_core_sdk.nasl

Version: 1.3

Type: local

Agent: windows

Family: Windows

Published: 5/16/2019

Updated: 6/3/2021

Dependencies: microsoft_dotnet_core_sdk_win.nbin

Configuration: Enable paranoid mode

Risk Information

CVSS Score Source: CVE-2019-0980

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

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

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

Vulnerability Information

CPE: cpe:/a:microsoft:.net_core

Required KB Items: installed_sw/.NET Core SDK Windows, Settings/ParanoidReport

Exploit Ease: No known exploits are available

Patch Publication Date: 5/14/2019

Vulnerability Publication Date: 5/14/2019

Reference Information

CVE: CVE-2019-0820, CVE-2019-0980, CVE-2019-0981, CVE-2019-0982

BID: 108245, 108207, 108208

IAVA: 2019-A-0149-S