Security Updates for Microsoft Powerpoint Products (September 2017)

This script is Copyright (C) 2017 Tenable Network Security, Inc.


Synopsis :

The Microsoft Powerpoint Products are affected by multiple vulnerabilities.

Description :

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

- 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) that contains 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. Note that the Preview Pane
is not an attack vector for this vulnerability. The
security update addresses the vulnerability by
correcting how Office handles objects in memory.
(CVE-2017-8742, CVE-2017-8743)

See also :

http://www.nessus.org/u?acec2355
http://www.nessus.org/u?8d9bf308
http://www.nessus.org/u?7e2fc194

Solution :

Microsoft has released the following security updates to address this issue:
-KB4011041
-KB3128027
-KB4011069

Risk factor :

High / CVSS Base Score : 9.3
(CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 6.9
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

Family: Windows : Microsoft Bulletins

Nessus Plugin ID: 103136 ()

Bugtraq ID: 100741
100746

CVE ID: CVE-2017-8742
CVE-2017-8743

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