Security Updates for Internet Explorer (August 2020)

high Nessus Plugin ID 139498

Synopsis

The Internet Explorer installation on the remote host is affected by multiple vulnerabilities.

Description

The Internet Explorer installation on the remote host is missing security updates. It is, therefore, affected by multiple vulnerabilities :

- A remote code execution vulnerability exists in the way that the MSHTML engine improperly validates input. An attacker could execute arbitrary code in the context of the current user. (CVE-2020-1567)

- A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer. The vulnerability could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user.
(CVE-2020-1380, CVE-2020-1570)

Solution

Microsoft has released the following security updates to address this issue:
-KB4571729
-KB4571687
-KB4571703
-KB4571730

See Also

https://support.microsoft.com/en-us/help/4571729/windows-7-update

http://www.nessus.org/u?fc565208

https://support.microsoft.com/en-us/help/4571703/windows-8-1-update

http://www.nessus.org/u?87c93762

Plugin Details

Severity: High

ID: 139498

File Name: smb_nt_ms20_aug_internet_explorer.nasl

Version: 1.10

Type: local

Agent: windows

Published: 8/11/2020

Updated: 1/26/2022

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

Risk Information

VPR

Risk Factor: High

Score: 8.9

CVSS v2

Risk Factor: High

Base Score: 7.6

Temporal Score: 6.6

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

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

CVSS Score Source: CVE-2020-1567

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 7.2

Vector: CVSS:3.0/AV:N/AC:H/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: 8/11/2020

Vulnerability Publication Date: 8/11/2020

CISA Known Exploited Dates: 5/3/2022

Reference Information

CVE: CVE-2020-1380, CVE-2020-1567, CVE-2020-1570

MSKB: 4571729, 4571687, 4571703, 4571730

MSFT: MS20-4571729, MS20-4571687, MS20-4571703, MS20-4571730

IAVA: 2020-A-0375-S, 2021-A-0431-S, 2021-A-0429-S