Detections
Analytics

Security Updates for Outlook (August 2020)

medium Nessus Plugin ID 139505

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Synopsis

The Microsoft Outlook application installed on the remote host is affected by multiple vulnerabilities.

Description

The Microsoft Outlook application installed on the remote host is missing security updates. It is, therefore, affected by multiple vulnerabilities :

 - A remote code execution vulnerability exists in Microsoft Outlook when the software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker could take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.
 (CVE-2020-1483)

 - An information disclosure vulnerability exists when attaching files to Outlook messages. This vulnerability could potentially allow users to share attached files such that they are accessible by anonymous users where they should be restricted to specific users.
 (CVE-2020-1493)

Solution

Microsoft has released the following security updates to address this issue:
-KB4484486
 -KB4484497
 -KB4484475

For Office 365, Office 2016 C2R, or Office 2019, ensure automatic updates are enabled or open any office app and manually perform an update.

See Also

http://www.nessus.org/u?bb58ddc1

http://www.nessus.org/u?e1dd03f9

http://www.nessus.org/u?a2cefe80

Plugin Details

Severity: Medium

ID: 139505

File Name: smb_nt_ms20_aug_outlook.nasl

Version: 1.9

Type: local

Agent: windows

Published: 8/11/2020

Updated: 2/26/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 9.3

Temporal Score: 7.3

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

CVSS Score Source: CVE-2020-1483

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 5

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

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS Score Source: CVE-2020-1493

Vulnerability Information

CPE: cpe:/a:microsoft:outlook

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

Reference Information

CVE: CVE-2020-1483, CVE-2020-1493

IAVA: 2020-A-0360-S

MSFT: MS20-4484475, MS20-4484486, MS20-4484497

MSKB: 4484475, 4484486, 4484497