Security Updates for Internet Explorer (July 2020)

high Nessus Plugin ID 138467

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 :

- An information disclosure vulnerability exists when Skype for Business is accessed via Internet Explorer. An attacker who exploited the vulnerability could cause the user to place a call without additional consent, leading to information disclosure of the user profile. For the vulnerability to be exploited, a user must click a specially crafted URL that prompts the Skype app.
(CVE-2020-1432)

- A remote code execution vulnerability exists in the way that the VBScript engine handles objects in memory. 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-2020-1403)

Solution

Microsoft has released the following security updates to address this issue:
-KB4565541
-KB4565524
-KB4565479
-KB4565536

See Also

https://support.microsoft.com/en-us/help/4565541/windows-8-1-kb4565541

http://www.nessus.org/u?d3552b4f

http://www.nessus.org/u?542e5e22

http://www.nessus.org/u?9e9e22c7

Plugin Details

Severity: High

ID: 138467

File Name: smb_nt_ms20_jul_internet_explorer.nasl

Version: 1.4

Type: local

Agent: windows

Published: 7/14/2020

Updated: 8/14/2020

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

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: High

Base Score: 7.6

Temporal Score: 5.6

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

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

CVSS Score Source: CVE-2020-1403

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:microsoft:windows

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Ease: No known exploits are available

Patch Publication Date: 7/14/2020

Vulnerability Publication Date: 7/14/2020

Reference Information

CVE: CVE-2020-1403, CVE-2020-1432

MSKB: 4565541, 4565524, 4565479, 4565536

MSFT: MS20-4565541, MS20-4565524, MS20-4565479, MS20-4565536

IAVA: 2020-A-0313-S