Security Updates for Microsoft .NET Framework (December 2018)

critical Nessus Plugin ID 119612

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Synopsis

The Microsoft .NET Framework installation on the remote host is affected by multiple vulnerabilities.

Description

The Microsoft .NET Framework installation on the remote host is missing security updates. It is, therefore, affected by multiple vulnerabilities :

- A remote code execution vulnerability exists when the Microsoft .NET Framework fails to validate input properly. An attacker who successfully exploited this vulnerability could take control of an affected system.
An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.
(CVE-2018-8540)

- A denial of service vulnerability exists when .NET Framework improperly handles special web requests. An attacker who successfully exploited this vulnerability could cause a denial of service against an .NET Framework web application. The vulnerability can be exploited remotely, without authentication. A remote unauthenticated attacker could exploit this vulnerability by issuing specially crafted requests to the .NET Framework application. The update addresses the vulnerability by correcting how the .NET Framework web application handles web requests. (CVE-2018-8517)

Solution

Microsoft has released security updates for Microsoft .NET Framework.

Plugin Details

Severity: Critical

ID: 119612

File Name: smb_nt_ms18_dec_dotnet.nasl

Version: 1.5

Type: local

Agent: windows

Family: Windows : Microsoft Bulletins

Published: 12/13/2018

Updated: 11/1/2019

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2018-8540

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

CPE: cpe:/a:microsoft:.net_framework

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Ease: No known exploits are available

Patch Publication Date: 12/11/2018

Vulnerability Publication Date: 12/11/2018

Reference Information

CVE: CVE-2018-8517, CVE-2018-8540

MSFT: MS18-4470491, MS18-4470492, MS18-4470493, MS18-4470498, MS18-4470499, MS18-4470500, MS18-4470502, MS18-4470600, MS18-4470601, MS18-4470602, MS18-4470622, MS18-4470623, MS18-4470629, MS18-4470630, MS18-4470637, MS18-4470638, MS18-4470639, MS18-4470640, MS18-4470641, MS18-4471321, MS18-4471323, MS18-4471324, MS18-4471327, MS18-4471329

MSKB: 4470491, 4470492, 4470493, 4470498, 4470499, 4470500, 4470502, 4470600, 4470601, 4470602, 4470622, 4470623, 4470629, 4470630, 4470637, 4470638, 4470639, 4470640, 4470641, 4471321, 4471323, 4471324, 4471327, 4471329

Detections

Analytics