-----BEGIN PGP SIGNED MESSAGE-----
AUSCERT External Security Bulletin Redistribution
Microsoft Security Bulletin MS16-116: Security Update in OLE
Automation for VBScript Scripting Engine (3188724)
14 September 2016
AusCERT Security Bulletin Summary
Product: Microsoft Windows
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
CVE Names: CVE-2016-3375
- --------------------------BEGIN INCLUDED TEXT--------------------
Microsoft Security Bulletin MS16-116: Security Update in OLE Automation for
VBScript Scripting Engine (3188724)
This security update resolves a vulnerability in Microsoft Windows. The
vulnerability could allow remote code execution if an attacker successfully
convinces a user of an affected system to visit a malicious or compromised
website. Note that you must install two updates to be protected from the
vulnerability discussed in this bulletin: The update in this bulletin,
MS16-116, and the update in MS16-104.
The security update affects all supported releases of Microsoft Windows and is
rated Critical on client operating systems and Moderate on servers.
Windows Server 2008
Windows Server 2008 R2
Windows Server 2012
Windows Server 2012 R2
Windows RT 8.1
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core
Windows Server 2012 (Server Core installation)
Windows Server 2012 R2 (Server Core installation)
Scripting Engine Memory Corruption Vulnerability - CVE-2016-3375
A remote code execution vulnerability exists in the way that the Microsoft OLE
Automation mechanism and the VBScript Scripting Engine in Internet Explorer
access objects in memory. The vulnerability could corrupt memory in a way that
could allow an attacker to execute arbitrary code in the context of the
current user. An attacker who successfully exploited the vulnerability could
gain the same user rights as the current user. If the current user is logged
on with administrative user rights, the attacker could take control of an
affected system. An attacker could then install programs; view, change, or
delete data; or create new accounts with full user rights.
An attacker could host a specially crafted website that is designed to exploit
the vulnerability through Internet Explorer, and then convince a user to view
the website. The attacker could also take advantage of compromised websites,
or websites that accept or host user-provided content or advertisements, by
adding specially crafted content that could exploit the vulnerability. In all
cases, however, an attacker would have no way to force users to view the
attacker-controlled content. Instead, an attacker would have to convince users
to take action, typically via an enticement in email or instant message, or by
getting them to open an email attachment.
The update, in conjunction with the Internet Explorer update in MS16-104,
addresses the vulnerability by modifying how the Microsoft OLE Automation
mechanism and the VBScript Scripting Engine in Internet Explorer handle
objects in memory.
The following table contains links to the standard entry for each
vulnerability in the Common Vulnerabilities and Exposures list:
Vulnerability title CVE number Publicly disclosed Exploited
Scripting Engine Memory Corruption Vulnerability CVE-2016-3375 No No
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to firstname.lastname@example.org
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
Australian Computer Emergency Response Team
The University of Queensland
Internet Email: email@example.com
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
-----BEGIN PGP SIGNATURE-----
-----END PGP SIGNATURE-----