# MA-518.092015: MyCERT Advisory - Microsoft Releases September 2015 Security Bulletin

**Date:** 18 Sep 2015  
**Source:** https://www.mycert.org.my/portal/advisory?id=MA-518.092015  
**Advisory ID:** MA-518.092015

---

#### **1.0 Introduction**
Microsoft has released 12 updates to address vulnerabilities in Microsoft Windows. Exploitation of some of these vulnerabilities could allow an attacker to take control of an affected system. Users and administrators are encouraged to review Microsoft Security Bulletins MS15-094 through MS15-105 and apply the necessary updates.
**2.0 The list of the Important vulnerabilities is as below:2.1    Cumulative Security Update for Internet Explorer (3089548)**
This security update resolves vulnerabilities in Internet Explorer. The most severe of the vulnerabilities could allow remote code execution if a user views a specially crafted webpage using Internet Explorer. An attacker who successfully exploited these vulnerabilities could gain the same user rights as the current user. Customers whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.
**Patch:** <http://go.microsoft.com/fwlink/?LinkId=623623>
**2.2    Cumulative Security Update for Microsoft Edge (3089665)**
This security update resolves vulnerabilities in Microsoft Edge. The most severe of the vulnerabilities could allow remote code execution if a user views a specially crafted webpage using Microsoft Edge. An attacker who successfully exploited these vulnerabilities could gain the same user rights as the current user. Customers whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.
**Patch:** <http://go.microsoft.com/fwlink/?LinkId=623632>
**2.3   Vulnerability in Active Directory Service Could Allow Denial of Service (3072595)**
This security update resolves vulnerabilities in Microsoft Office. The most severe of the vulnerabilities could allow remote code execution if a user opens a specially crafted Microsoft Office file. An attacker who successfully exploited the vulnerabilities could run arbitrary code in the context of the current user. Customers whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.
**Patch:** <http://go.microsoft.com/fwlink/?LinkId=623553>
**2.4    Vulnerabilities in Microsoft Graphics Component Could Allow Remote Code Execution (3089656)**
This security update resolves vulnerabilities in Microsoft Windows, Microsoft Office, and Microsoft Lync. The most severe of the vulnerabilities could allow remote code execution if a user opens a specially crafted document or visits an untrusted webpage that contains embedded OpenType fonts.
**Patch:** <http://go.microsoft.com/fwlink/?LinkId=623625>
**2.5    Vulnerabilities in Windows Journal Could Allow Remote Code Execution (3089669)**
This security update resolves vulnerabilities in Microsoft Windows. The more severe of the vulnerabilities could allow remote code execution if a user opens a specially crafted Journal file. 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.
**Patch**: <http://go.microsoft.com/fwlink/?LinkId=623624>
**2.6    Vulnerabilities in Microsoft Office Could Allow Remote Code Execution (3089664)**
This security update resolves vulnerabilities in Microsoft Office. The most severe of the vulnerabilities could allow remote code execution if a user opens a specially crafted Microsoft Office file. An attacker who successfully exploited the vulnerabilities could run arbitrary code in the context of the current user. Customers whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.
**Patch:** <http://go.microsoft.com/fwlink/?LinkId=623627>
**2.7    **Vulnerability in Windows Media Center Could Allow Remote Code Execution (3087918)**
This security update resolves a vulnerability in Microsoft Windows. The vulnerability could allow remote code execution if Windows Media Center opens a specially crafted Media Center link (.mcl) file that references malicious code. An attacker who successfully exploited this vulnerability could gain the same user rights as the current user. Customers whose accounts are configured to have fewer user rights on the system could be less impacted than those who operate with administrative user rights.
**Patch:**<http://go.microsoft.com/fwlink/?LinkId=623232>
**2.8    Vulnerabilities in .NET Framework Could Allow Elevation of Privilege (3089662)**
This security update resolves vulnerabilities in Microsoft .NET Framework. The most severe of the vulnerabilities could allow elevation of privilege if a user runs a specially crafted .NET application. However, in all cases, an attacker would have no way to force users to run the application; an attacker would have to convince users to do so.
**Patch:** <http://go.microsoft.com/fwlink/?LinkId=623575>
**2.9 **Vulnerabilities in Windows Task Management Could Allow Elevation of Privilege (3089657)**This security update resolves vulnerabilities in Microsoft Windows. The vulnerabilities could allow elevation of privilege if an attacker logs on to a system and runs a specially crafted application.
**Patch** : <http://go.microsoft.com/fwlink/?LinkId=623626>
**2.10Vulnerabilities in Microsoft Exchange Server Could Allow Information Disclosure (3089250)**
This security update resolves vulnerabilities in Microsoft Exchange Server. The most severe of the vulnerabilities could allow information disclosure if Outlook Web Access (OWA) fails to properly handle web requests, and sanitize user input and email content.
**Patch** : <http://go.microsoft.com/fwlink/?LinkId=623628>
**2.11Vulnerabilities in Skype for Business Server and Lync Server Could Allow Elevation of Privilege (3089952)**
This security update resolves vulnerabilities in Skype for Business Server and Microsoft Lync Server. The most severe of the vulnerabilities could allow elevation of privilege if a user clicks a specially crafted URL. An attacker would have to convince users to click a link in an instant messenger or email message that directs them to an affected website by way of a specially crafted URL.
**Patch** :  <http://go.microsoft.com/fwlink/?LinkId=623216>
**2.12 Vulnerability in Windows Hyper-V Could Allow Security Feature Bypass (3091287)**
This security update resolves a vulnerability in Microsoft Windows. The vulnerability could allow security feature bypass if an attacker runs a specially crafted application that could cause Windows Hyper-V to incorrectly apply access control list (ACL) configuration settings. Customers who have not enabled the Hyper-V role are not affected.
**Patch** : <http://go.microsoft.com/fwlink/?LinkId=623539>
**3.0    Recommendation**
Users and administrators are recommended to perform the update immediately. All of the patches could be done almost automatically via the Windows Update application.
The how-to perform of the Windows Update is available at the following URL:
[https://www.mycert.org.my/portal/articles-content?menu=b9f3fdda-c343-4cb4-99a7-a7506cfb13ba&id=62275f48-f209-4440-af1a-c5425c875fa4](https://www.mycert.org.my/portal/articles-content?menu=b9f3fdda-c343-4cb4-99a7-a7506cfb13ba&id=62275f48-f209-4440-af1a-c5425c875fa4
)
Generally, MyCERT advises the users of this software to be updated with the latest security announcements by the vendor and follow best practice security policies to determine which updates should be applied.
For further enquiries, please contact MyCERT through the following channels:
E-mail : [[email protected]](/cdn-cgi/l/email-protection#c1a2b8a3a4b3f8f8f881a2b8a3a4b3b2a4a2b4b3a8b5b8efacb8) or [[email protected]](/cdn-cgi/l/email-protection#b5d8ccd6d0c7c1f5d8ccd6d0c7c19bdac7d29bd8cc) 
Phone : 1-300-88-2999 (monitored during business hours)
Fax : +603 89453442 
Handphone : +60 19 2665850 (24x7 call incident reporting)
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**4.0     References**
- Microsoft Releases September 2015 Security Bulletin
<https://www.us-cert.gov/ncas/current-activity/2015/09/08/Microsoft-Releases-September-2015-Security-Bulletin>
- Microsoft Security Bulletin Summary for September 2015
<https://technet.microsoft.com/en-us/library/security/ms15-sep.aspx>
- September 2015 Security Update Release Summary
<http://blogs.technet.com/b/msrc/archive/2015/09/08/september-2015-security-update-release-summary.aspx>