Security Updates for Microsoft Office Compatibility Pack SP3 (October 2017)

High Nessus Plugin ID 103751

Synopsis

Microsoft Office Compatibility Pack SP3 is affected by a remote code execution vulnerability.

Description

Microsoft Office Compatibility Pack SP3 is missing a security update.
It is, therefore, affected by a remote code execution vulnerability :

- A remote code execution vulnerability exists in Microsoft Office 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. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.

Exploitation of the vulnerability requires that a user open a specially crafted file with an affected version of Microsoft Office software. In an email attack scenario, an attacker could exploit the vulnerability by sending the specially crafted file to the user and convincing the user to open the file. In a web-based attack scenario, an attacker could host a website (or leverage a compromised website that accepts or hosts user-provided content) containing a specially crafted file designed to exploit the vulnerability. An attacker would have no way to force users to visit the website. Instead, an attacker would have to convince users to click a link, typically by way of an enticement in an email or instant message, and then convince them to open the specially crafted file.

The security update addresses the vulnerability by correcting how Office handles objects in memory. (CVE-2017-11826)

Solution

Microsoft has released the following security update to address this issue:
-KB3213647

See Also

http://www.nessus.org/u?c16afbdf

Plugin Details

Severity: High

ID: 103751

File Name: smb_nt_ms17_oct_office_compatibility.nasl

Version: 1.7

Type: local

Agent: windows

Published: 2017/10/10

Updated: 2019/11/12

Dependencies: 93232, 13855, 57033

Risk Information

Risk Factor: High

CVSS Score Source: CVE-2017-11826

CVSS v2.0

Base Score: 9.3

Temporal Score: 8.1

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

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

CVSS v3.0

Base Score: 7.8

Temporal Score: 7.5

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

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

Vulnerability Information

CPE: cpe:/a:microsoft:office_compatibility_pack

Required KB Items: SMB/MS_Bulletin_Checks/Possible

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2017/10/10

Vulnerability Publication Date: 2017/10/10

Exploitable With

Core Impact

Reference Information

CVE: CVE-2017-11826

BID: 167045

MSFT: MS17-3213647

IAVA: 2017-A-0291