copyright | disclaimer | privacy | contact  
Australia's Leading Computer Emergency Response Team
Search this site

On this site

 > About AusCERT
 > Membership
 > Contact Us
 > PKI Services
 > Publications
 > Sec. Bulletins
 > Conferences
 > News & Media
 > Services
 > Web Log
 > Site Map
 > Site Help
 > Member login


ESB-2014.2336 - [Win] Microsoft VBScript Scripting Engine: Execute arbitrary code/commands - Remote with user interaction

Date: 09 December 2014

Click here for printable version
Click here for PGP verifiable version
Hash: SHA1

             AUSCERT External Security Bulletin Redistribution

          Vulnerability in VBScript Scripting Engine Could Allow
                      Remote Code Execution (3016711)
                              9 December 2014


        AusCERT Security Bulletin Summary

Product:           Microsoft VBScript Scripting Engine
Publisher:         Microsoft
Operating System:  Windows
Impact/Access:     Execute Arbitrary Code/Commands -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2014-6363  

Original Bulletin:

- --------------------------BEGIN INCLUDED TEXT--------------------

Microsoft Security Bulletin MS14-084 - Critical

Vulnerability in VBScript Scripting Engine Could Allow Remote Code Execution 

Published: December 9, 2014

Version: 1.0

Executive Summary 

This security update resolves a privately reported vulnerability in the 
VBScript scripting engine in Microsoft Windows. The vulnerability could allow 
remote code execution if a user visits a specially crafted website. An attacker
who successfully exploited this vulnerability could gain the same user rights 
as the current user. If the current user is logged on with administrative user 
rights, an attacker who successfully exploited this vulnerability could take 
complete control of an affected system. An attacker could then install 
programs; view, change, or delete data; or create new accounts with full user 

Affected Software

Windows Server 2003
Windows Server 2008
Windows 7
Windows Server 2008 R2

Vulnerability Information

VBScript Memory Corruption Vulnerability - CVE-2014-6363

A remote code execution vulnerability exists in the way that the VBScript 
engine, when rendered in Internet Explorer, handles objects in memory. In a 
web-based attack scenario, an attacker could host a specially crafted website
that is designed to exploit this vulnerability through Internet Explorer and
then convince a user to view the website. An attacker could also embed an 
ActiveX control marked "safe for initialization" in an application or 
Microsoft Office document that hosts the IE rendering engine. The attacker
could also take advantage of compromised websites and websites that accept 
or host user-provided content or advertisements. These websites could 
contain specially crafted content that could exploit this vulnerability.

- --------------------------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
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
Qld 4072

Internet Email:
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.