KB4601319: Windows 10 version 2004 Feb 2021 Security Update

critical Nessus Plugin ID 146345
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 host is missing one or more security updates.

Description

The remote Windows host is missing security update 4601319.
It is, therefore, affected by multiple vulnerabilities :

- An information disclosure vulnerability. An attacker can exploit this to disclose potentially sensitive information. (CVE-2021-1734, CVE-2021-24076, CVE-2021-24079, CVE-2021-24084, CVE-2021-24106)

- A denial of service (DoS) vulnerability. An attacker can exploit this issue to cause the affected component to deny system or application services. (CVE-2021-24075, CVE-2021-24080, CVE-2021-24086, CVE-2021-24098)

- A remote code execution vulnerability. An attacker can exploit this to bypass authentication and execute unauthorized arbitrary commands. (CVE-2021-1722, CVE-2021-24074, CVE-2021-24077, CVE-2021-24081, CVE-2021-24083, CVE-2021-24088, CVE-2021-24091, CVE-2021-24093, CVE-2021-24094)

- An elevation of privilege vulnerability. An attacker can exploit this to gain elevated privileges.
(CVE-2021-1698, CVE-2021-1727, CVE-2021-1732, CVE-2021-24096, CVE-2021-24102, CVE-2021-24103, CVE-2021-25195)

- A security feature bypass vulnerability exists. An attacker can exploit this and bypass the security feature and perform unauthorized actions compromising the integrity of the system/application. (CVE-2021-1731, CVE-2021-24082)

Solution

Microsoft has released KB4601319 to address this issue.

See Also

https://support.microsoft.com/en-us/help/4601319

Plugin Details

Severity: Critical

ID: 146345

File Name: smb_nt_ms21_feb_4601319.nasl

Version: 1.8

Type: local

Agent: windows

Published: 2/9/2021

Updated: 6/3/2021

Dependencies: smb_check_rollup.nasl, smb_hotfixes.nasl, ms_bulletin_checks_possible.nasl

Risk Information

CVSS Score Source: CVE-2021-24094

VPR

Risk Factor: Critical

Score: 9.8

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.4

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

Temporal Vector: E:H/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:microsoft:windows

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/9/2021

Vulnerability Publication Date: 2/9/2021

Exploitable With

Metasploit (Win32k ConsoleControl Offset Confusion)

Reference Information

CVE: CVE-2021-1698, CVE-2021-1722, CVE-2021-1727, CVE-2021-1731, CVE-2021-1732, CVE-2021-1734, CVE-2021-24074, CVE-2021-24075, CVE-2021-24076, CVE-2021-24077, CVE-2021-24078, CVE-2021-24079, CVE-2021-24080, CVE-2021-24081, CVE-2021-24082, CVE-2021-24083, CVE-2021-24084, CVE-2021-24086, CVE-2021-24088, CVE-2021-24091, CVE-2021-24093, CVE-2021-24094, CVE-2021-24096, CVE-2021-24098, CVE-2021-24102, CVE-2021-24103, CVE-2021-24106, CVE-2021-25195

MSKB: 4601319

MSFT: MS21-4601319

IAVA: 2021-A-0072-S, 2021-A-0093-S