KB5005607: Windows Server 2012 September 2021 Security Update

high Nessus Plugin ID 153384
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 Windows host is affected by multiple vulnerabilities.

Description

The remote Windows host is missing security update 5005607 or cumulative update 5005623. It is, therefore, affected by multiple vulnerabilities :

- An elevation of privilege vulnerability. An attacker can exploit this to gain elevated privileges.
(CVE-2021-36955, CVE-2021-36963, CVE-2021-36964, CVE-2021-36974, CVE-2021-38628, CVE-2021-38633, CVE-2021-38638, CVE-2021-38639, CVE-2021-38667, CVE-2021-38671, CVE-2021-40447)

- An memory corruption vulnerability exists. An attacker can exploit this to corrupt the memory and cause unexpected behaviors within the system/application.
(CVE-2021-26435)

- An information disclosure vulnerability. An attacker can exploit this to disclose potentially sensitive information. (CVE-2021-36960, CVE-2021-36962, CVE-2021-36969, CVE-2021-36972, CVE-2021-38629, CVE-2021-38635, CVE-2021-38636)

- A remote code execution vulnerability. An attacker can exploit this to bypass authentication and execute unauthorized arbitrary commands. (CVE-2021-36965, CVE-2021-36958)

- A denial of service (DoS) vulnerability. An attacker can exploit this issue to cause the affected component to deny system or application services. (CVE-2021-36961)

- A session spoofing vulnerability exists. An attacker can exploit this to perform actions with the privileges of another user. (CVE-2021-36959)

Solution

Apply Security Only update KB5005607 or Cumulative Update KB5005623.

See Also

http://www.nessus.org/u?e96fa374

http://www.nessus.org/u?adb97de7

Plugin Details

Severity: High

ID: 153384

File Name: smb_nt_ms21_sep_5005623.nasl

Version: 1.3

Type: local

Agent: windows

Published: 9/14/2021

Updated: 9/20/2021

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

Risk Information

CVSS Score Source: CVE-2021-36958

VPR

Risk Factor: Critical

Score: 9.7

CVSS v2

Risk Factor: High

Base Score: 9.3

Temporal Score: 8.1

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

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

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7.5

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/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: 9/14/2021

Vulnerability Publication Date: 9/14/2021

Reference Information

CVE: CVE-2021-26435, CVE-2021-36955, CVE-2021-36958, CVE-2021-36959, CVE-2021-36960, CVE-2021-36961, CVE-2021-36962, CVE-2021-36963, CVE-2021-36964, CVE-2021-36965, CVE-2021-36969, CVE-2021-36972, CVE-2021-36974, CVE-2021-38628, CVE-2021-38629, CVE-2021-38633, CVE-2021-38635, CVE-2021-38636, CVE-2021-38638, CVE-2021-38639, CVE-2021-38667, CVE-2021-38671, CVE-2021-40447

MSKB: 5005607, 5005623

MSFT: MS21-5005607, MS21-5005623

IAVA: 2021-A-0431, 2021-A-0429