Microsoft App Installer Security Updates (December 2021)

high Nessus Plugin ID 159064

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Synopsis

The app installer installation on the remote host is missing a security update.

Description

The app installer installation on the remote host is missing a security update. It is, therefore, affected by a session spoofing vulnerability. An attacker can exploit this if the user opens a specially crafted attachment. This will allow the attacker to perform actions with the privileges of the user.

Solution

Microsoft has released an update to address this issue.

Plugin Details

Severity: High

ID: 159064

File Name: smb_nt_ms21_dec_app_installer.nasl

Version: 1.5

Type: local

Agent: windows

Family: Windows : Microsoft Bulletins

Published: 3/18/2022

Updated: 3/27/2024

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 8.9

CVSS v2

Risk Factor: Medium

Base Score: 6

Temporal Score: 5.2

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

CVSS Score Source: CVE-2021-43890

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.8

Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:R/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_10, cpe:/a:microsoft:app_installer

Required KB Items: SMB/Registry/Enumerated, WMI/Windows App Store/Enumerated

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 12/14/2021

Vulnerability Publication Date: 12/14/2021

CISA Known Exploited Vulnerability Due Dates: 12/29/2021

Reference Information

CVE: CVE-2021-43890

Detections

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