Detections
Analytics

KB5000803: Windows Security Update (March 2021)

critical Nessus Plugin ID 147222

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Synopsis

The remote Windows host is affected by multiple vulnerabilities.

Description

The remote Windows host is missing security update 5000803.
It is, therefore, affected by multiple vulnerabilities :

 - 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)

 - An elevation of privilege vulnerability. An attacker can exploit this to gain elevated privileges.
 (CVE-2021-1640, CVE-2021-26862, CVE-2021-26864, CVE-2021-26865, CVE-2021-26866, CVE-2021-26868, CVE-2021-26872, CVE-2021-26873, CVE-2021-26875, CVE-2021-26878, CVE-2021-26880, CVE-2021-26882, CVE-2021-26891, CVE-2021-26898, CVE-2021-26899, CVE-2021-26901, CVE-2021-27077)

 - 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)

 - 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)

 - 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-2021-26892)

Solution

Apply Cumulative Update KB5000803.

See Also

http://www.nessus.org/u?41f8ea83

Plugin Details

Severity: Critical

ID: 147222

File Name: smb_nt_ms21_mar_5000803.nasl

Version: 1.14

Type: local

Agent: windows

Published: 3/9/2021

Updated: 2/3/2023

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, 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

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-2021-26864, CVE-2021-26865, CVE-2021-26866, 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-2021-26880, CVE-2021-26881, CVE-2021-26882, CVE-2021-26884, CVE-2021-26886, CVE-2021-26891, CVE-2021-26892, 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-0129-S, 2021-A-0130-S, 2021-A-0131-S, 2021-A-0134-S

MSFT: MS21-5000803

MSKB: 5000803