KB4601363: Windows 7 and Windows Server 2008 R2 February 2021 Security Update

critical Nessus Plugin ID 146342

Synopsis

The remote Windows host is affected by multiple vulnerabilities.

Description

The remote Windows host is missing security update 4601363 or cumulative update 4601347. It is, therefore, affected by multiple vulnerabilities :

- An elevation of privilege vulnerability exists when an attacker establishes a vulnerable Netlogon secure channel connection to a domain controller, using the Netlogon Remote Protocol (MS-NRPC). An attacker who successfully exploited the vulnerability could run a specially crafted application on a device on the network. (Enforcement mode) (CVE-2020-1472)

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

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

- 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-2021-24078, CVE-2021-24083, CVE-2021-24088, CVE-2021-24094)

- An information disclosure vulnerability. An attacker can exploit this to disclose potentially sensitive information. (CVE-2021-1734)

Solution

Apply Security Only update KB4601363 or Cumulative Update KB4601347.

See Also

http://www.nessus.org/u?d1f488e9

http://www.nessus.org/u?3b47172c

Plugin Details

Severity: Critical

ID: 146342

File Name: smb_nt_ms21_feb_4601347.nasl

Version: 1.15

Type: local

Agent: windows

Published: 2/9/2021

Updated: 6/17/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.5

CVSS v2

Risk Factor: High

Base Score: 9.3

Temporal Score: 8.1

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

CVSS Score Source: CVE-2020-1472

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: CVSS:3.0/E:H/RL:O/RC:C

CVSS Score Source: CVE-2021-24094

Vulnerability Information

CPE: cpe:/o:microsoft:windows_7, cpe:/o:microsoft:windows_server_2008:r2

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

CISA Known Exploited Vulnerability Due Dates: 9/21/2020

Reference Information

CVE: CVE-2020-1472, CVE-2021-1722, CVE-2021-1727, CVE-2021-1734, CVE-2021-24074, CVE-2021-24077, CVE-2021-24078, CVE-2021-24080, CVE-2021-24083, CVE-2021-24086, CVE-2021-24088, CVE-2021-24094, CVE-2021-24102, CVE-2021-24103, CVE-2021-25195

CISA-NCAS: AA22-011A

MSFT: MS21-4601347, MS21-4601363

MSKB: 4601347, 4601363