Security Updates for Microsoft Office Online Server (October 2019)

High Nessus Plugin ID 129885

Synopsis

The Microsoft Office Online Server installation on the remote host is missing a security update.

Description

The Microsoft Office Online Server installation on the remote host is missing a security update. It is, therefore, affected by a remote code execution vulnerability 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.

Solution

Upgrade to the latest version of Office Online Server and apply the KB4475595 patch to address this issue.

See Also

http://www.nessus.org/u?3089fa2a

Plugin Details

Severity: High

ID: 129885

File Name: smb_nt_ms19_oct_office_web.nasl

Version: 1.5

Type: local

Agent: windows

Published: 2019/10/15

Updated: 2020/03/13

Dependencies: 27524, 13855, 93232, 57033, 84669

Risk Information

Risk Factor: High

CVSS Score Source: CVE-2019-1331

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:office_online_server

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Ease: No known exploits are available

Patch Publication Date: 2019/10/08

Vulnerability Publication Date: 2019/10/08

Reference Information

CVE: CVE-2019-1331

MSKB: 4475595

MSFT: MS19-4475595