Security Updates for Microsoft Excel Products (September 2019)

High Nessus Plugin ID 128645

Synopsis

The Microsoft Excel Products are affected by multiple vulnerabilities.

Description

The Microsoft Excel Products are missing security updates.
It is, therefore, affected by multiple vulnerabilities :

- A remote code execution vulnerability exists in Microsoft Excel software 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-2019-1297)

- An information disclosure vulnerability exists when Microsoft Excel improperly discloses the contents of its memory. An attacker who exploited the vulnerability could use the information to compromise the users computer or data. (CVE-2019-1263)

Solution

Microsoft has released the following security updates to address this issue:
-KB4475566
-KB4475574
-KB4475579 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?68e0aa81

http://www.nessus.org/u?ecb6d437

http://www.nessus.org/u?e3c5160f

Plugin Details

Severity: High

ID: 128645

File Name: smb_nt_ms19_sep_excel.nasl

Version: 1.8

Type: local

Agent: windows

Published: 2019/09/10

Updated: 2020/01/30

Dependencies: 27524, 13855, 93232, 57033

Risk Information

Risk Factor: High

CVSS Score Source: CVE-2019-1297

CVSS v2.0

Base Score: 9.3

Temporal Score: 6.9

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 8.8

Temporal Score: 7.7

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

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

Vulnerability Information

CPE: cpe:/a:microsoft:excel

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Ease: No known exploits are available

Patch Publication Date: 2019/09/10

Vulnerability Publication Date: 2019/09/10

Reference Information

CVE: CVE-2019-1263, CVE-2019-1297

MSKB: 4475566, 4475574, 4475579

MSFT: MS19-4475566, MS19-4475574, MS19-4475579