Detections
Analytics

KB5000853: Windows 8.1 and Windows Server 2012 R2 March 2021 Security Update

critical Nessus Plugin ID 147229

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Synopsis

The remote Windows host is affected by multiple vulnerabilities.

Description

The remote Windows host is missing security update 5000853 or cumulative update 5000848. It is, therefore, affected by multiple vulnerabilities :

 - A remote code execution vulnerability. An attacker can exploit this to bypass authentication and execute unauthorized arbitrary commands. (CVE-2021-26861, CVE-2021-26877, CVE-2021-26881, CVE-2021-26893, CVE-2021-26894, CVE-2021-26895, CVE-2021-26897)

 - An elevation of privilege vulnerability. An attacker can exploit this to gain elevated privileges.
 (CVE-2021-1640, CVE-2021-26862, CVE-2021-26868, CVE-2021-26872, CVE-2021-26873, CVE-2021-26875, CVE-2021-26878, CVE-2021-26882, CVE-2021-26898, CVE-2021-26899, CVE-2021-26901, CVE-2021-27077)

 - A denial of service (DoS) vulnerability. An attacker can exploit this issue to cause the affected component to deny system or application services. (CVE-2021-26879, CVE-2021-26886, CVE-2021-26896, CVE-2021-27063)

 - An information disclosure vulnerability. An attacker can exploit this to disclose potentially sensitive information. (CVE-2021-24107, CVE-2021-26869, CVE-2021-26884)

 - An memory corruption vulnerability exists. An attacker can exploit this to corrupt the memory and cause unexpected behaviors within the system/application.
 (CVE-2021-26411)

Solution

Apply Security Only update KB5000853 or Cumulative Update KB5000848.

See Also

http://www.nessus.org/u?be16b68e

http://www.nessus.org/u?5ff1e9b3

Plugin Details

Severity: Critical

ID: 147229

File Name: smb_nt_ms21_mar_5000848.nasl

Version: 1.12

Type: local

Agent: windows

Published: 3/9/2021

Updated: 6/17/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 10.0

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 8.7

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

CVSS Score Source: CVE-2021-26897

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

Vulnerability Information

CPE: cpe:/o:microsoft:windows_8, cpe:/o:microsoft:windows_server_2012:r2

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/8/2021

Vulnerability Publication Date: 3/8/2021

CISA Known Exploited Vulnerability Due Dates: 11/17/2021

Exploitable With

CANVAS (CANVAS)

Core Impact

Reference Information

CVE: CVE-2021-1640, CVE-2021-24107, CVE-2021-26411, CVE-2021-26861, CVE-2021-26862, CVE-2021-26868, CVE-2021-26869, CVE-2021-26872, CVE-2021-26873, CVE-2021-26875, CVE-2021-26877, CVE-2021-26878, CVE-2021-26879, CVE-2021-26881, CVE-2021-26882, CVE-2021-26884, CVE-2021-26886, CVE-2021-26893, CVE-2021-26894, CVE-2021-26895, CVE-2021-26896, CVE-2021-26897, CVE-2021-26898, CVE-2021-26899, CVE-2021-26901, CVE-2021-27063, CVE-2021-27077

IAVA: 2021-A-0130-S, 2021-A-0134-S

MSFT: MS21-5000848, MS21-5000853

MSKB: 5000848, 5000853