Microsoft has released two charts that show the severity and exploitable index and the deployment priority. The former interesting for all users while the latter probably only for network administrators.

• Microsoft Security Bulletin MS09-045 – Critical – Vulnerability in JScript Scripting Engine Could Allow Remote Code Execution (971961) – This security update resolves a privately reported vulnerability in the JScript scripting engine that could allow remote code execution if a user opened a specially crafted file or visited a specially crafted Web site and invoked a malformed script. If a 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 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.
• Microsoft Security Bulletin MS09-046 – Critical – Vulnerability in DHTML Editing Component ActiveX Control Could Allow Remote Code Execution (956844) – This security update resolves a privately reported vulnerability in the DHTML Editing Component ActiveX control. An attacker could exploit the vulnerability by constructing a specially crafted Web page. When a user views the Web page, the vulnerability could allow remote code execution. An attacker who successfully exploited this vulnerability could gain the same user rights as the logged-on user. 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.
• Microsoft Security Bulletin MS09-047 – Critical – Vulnerabilities in Windows Media Format Could Allow Remote Code Execution (973812) – This security update resolves two privately reported vulnerabilities in Windows Media Format. Either vulnerability could allow remote code execution if a user opened a specially crafted media file. If a 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 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.
• Microsoft Security Bulletin MS09-048 – Critical – Vulnerabilities in Windows TCP/IP Could Allow Remote Code Execution (967723) – This security update resolves several privately reported vulnerabilities in Transmission Control Protocol/Internet Protocol (TCP/IP) processing. The vulnerabilities could allow remote code execution if an attacker sent specially crafted TCP/IP packets over the network to a computer with a listening service. Firewall best practices and standard default firewall configurations can help protect networks from attacks that originate outside the enterprise perimeter. Best practices recommend that systems that are connected to the Internet have a minimal number of ports exposed.
• Microsoft Security Bulletin MS09-049 – Critical – Vulnerability in Wireless LAN AutoConfig Service Could Allow Remote Code Execution (970710) – This security update resolves a privately reported vulnerability in Wireless LAN AutoConfig Service. The vulnerability could allow remote code execution if a client or server with a wireless network interface enabled receives specially crafted wireless frames. Systems without a wireless card enabled are not at risk from this vulnerability.

The patches can be download and applied by visiting the pages that are linked above or by using any of the update options that are provided by Microsoft operating systems including Windows Update, Automatic Updates or Microsoft Updates. Additional information can be found at the Microsoft Technet page.

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Critical ratings for Windows XP or Windows Server 2003 are usually important or moderate ratings for Windows Vista or Windows Server 2008 thanks to the increased security in those operating systems. Downloads are already available from various official sources including Automatic Updates, Windows Update or Microsoft Update.

• MS09-028 – Vulnerabilities in the Embedded OpenType Font Engine Could Allow Remote Code Execution (961371) – This security update resolves two privately reported vulnerabilities in the Microsoft Windows component, Embedded OpenType (EOT) Font Engine. The vulnerabilities could allow remote code execution. An attacker who successfully exploited either of these vulnerabilities could take complete control of an affected system remotely. 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.
• MS09-029 – Vulnerabilities in Microsoft DirectShow Could Allow Remote Code Execution (971633) – This security update resolves one publicly disclosed vulnerability and two privately reported vulnerabilities in Microsoft DirectShow. The vulnerabilities could allow remote code execution if a user opened a specially crafted QuickTime media file. An attacker who successfully exploited any of these vulnerabilities could gain the same user rights as the local user. 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.
• MS09-030 – Cumulative Security Update of ActiveX Kill Bits (973346) – This security update resolves a privately reported vulnerability that is currently being exploited. The vulnerability in Microsoft Video ActiveX Control could allow remote code execution if a user views a specially crafted Web page with Internet Explorer, instantiating the ActiveX control. This ActiveX control was never intended to be instantiated in Internet Explorer. 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.
• MS09-031 – Vulnerability in Virtual PC and Virtual Server Could Allow Elevation of Privilege (969856) – This security update resolves a privately reported vulnerability in Microsoft Virtual PC and Microsoft Virtual Server. An attacker who successfully exploited this vulnerability could execute arbitrary code and take complete control of an affected guest operating system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.
• MS09-032 -Vulnerability in Microsoft ISA Server 2006 Could Cause Elevation of Privilege (970953) – This security update resolves a privately reported vulnerability in Microsoft Internet Security and Acceleration (ISA) Server 2006. The vulnerability could allow elevation of privilege if an attacker successfully impersonates an administrative user account for an ISA server that is configured for Radius One Time Password (OTP) authentication and authentication delegation with Kerberos Constrained Delegation.
• MS09-033 – Vulnerability in Microsoft Office Publisher Could Allow Remote Code Execution (969516) – This security update resolves a privately reported vulnerability in Microsoft Office Publisher that could allow remote code execution if a user opens a specially crafted Publisher file. 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 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.

It is recommended to install the Microsoft Security Patches as soon as possible to close the security vulnerabilities.

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The easiest way to install the patches is by downloading and installing the security patches at Windows Update which provides access to all security updates even for users who run a non legit version of Windows.

Microsoft did also release a new version of the Windows Malicious Software Removal Tool which is now able to detect two new families of malware (Win32/FakeXPA and Win32/Yektel)

• MS08-070: Vulnerabilities in Visual Basic 6.0 Runtime Extended Files (ActiveX Controls) Could Allow Remote Code Execution (932349) which is rated “Critical”
• MS08-071: Vulnerabilities in GDI Could Allow Remote Code Execution (956802) which is rated “Critical”
• MS08-072: Vulnerabilities in Microsoft Office Word Could Allow Remote Code Execution (957173) which is rated “Critical”
• MS08-073: Cumulative Security Update for Internet Explorer (958215) which is rated “Critical”
• MS08-074: Vulnerabilities in Microsoft Office Excel Could Allow Remote Code Execution (959070) which is rated “Critical”
• MS08-075: Vulnerabilities in Windows Search Could Allow Remote Code Execution (959349) which is rated “Critical”
• MS08-076: Vulnerabilities in Windows Media Components Could Allow Remote Code Execution (959807) which is rated “Important”
• MS08-077: Vulnerability in Microsoft Office SharePoint Server Could Cause Elevation of Privilege (957175) which is rated “Important”

Windows users should install the updates as soon as possible to secure their computer system.

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The vulnerability rated as critical could allow remote code execution in the in Microsoft XML Core Services while the vulnerability rated important could allow remote code execution in Microsoft Server Message Block (SMB) Protocol.

Both security vulnerabilities can be fixed by using Windows Update or by downloading the security updates directly from the Microsoft Download website by following the two links given above in this article.

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All critical vulnerabilities which affect Microsoft Windows, Microsoft Office and Internet Explorer allow Remote Code Execution. The easiest way to patch these security vulnerabilities is by visiting the Windows Update website with Internet Explorer and let a script check the available updates for your system. Please note that you will be asked if you want to install Service Pack 3 Refresh 2 for Windows XP if you use that operating system. My advise would be to not install this version yet and wait for the release version.

All security updates will be displayed and are selected for immediate download and installation. You could follow the link above which leads to the Microsoft website that explains the vulnerabilities and leads to downloads of the patches. This means that you have to make sure to pick the correct downloads for your operating system and software.

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