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Microsoft security alert.

May 12, 2009

Advisory overview

Qualys Vulnerability R&D Lab has released new vulnerability checks in the Qualys Cloud Platform to protect organizations against 14 vulnerabilities that were fixed in 1 bulletins announced today by Microsoft. Customers can immediately audit their networks for these and other new vulnerabilities by accessing their Qualys subscription. Visit our blog to see how to prioritize remediation.

Non-Qualys customers can audit their network for these and other vulnerabilities by signing up for a Qualys Free Trial, or by trying our FreeScan service.

Vulnerability details

Microsoft has released 1 security bulletins to fix newly discovered flaws in their software. Qualys has released the following checks for these new vulnerabilities:

  • Microsoft Office PowerPoint Could Allow Remote Code Execution (MS09-017)

    Severity
    Urgent 5
    Qualys ID
    110094
    Vendor Reference
    MS09-017
    CVE Reference
    CVE-2009-0220, CVE-2009-0221, CVE-2009-0222, CVE-2009-0223, CVE-2009-0224, CVE-2009-0225, CVE-2009-0226, CVE-2009-0227, CVE-2009-0556, CVE-2009-1128, CVE-2009-1129, CVE-2009-1130, CVE-2009-1131, CVE-2009-1137
    CVSS Scores
    Base 9.3 / Temporal 7.3
    Description
    Microsoft PowerPoint is a presentation program developed by Microsoft. It is part of the Microsoft Office Suite.

    Previously Microsoft has identified this as a zero day vulnerability in Microsoft PowerPoint.

    The application is prone to the following vulnerabilities that are caused due to the way it handles specially crafted PowerPoint files.

    - A file format vulnerability exists in the way that PowerPoint reads paragraph formatting data from specially crafted PowerPoint 4.0 files. (CVE-2009-0220)

    - Multiple integer overflow and memory corruption vulnerabilities exist in the way PowerPoint reads an invalid record type in a specially crafted PowerPoint file allowing memory corruption and code execution. (CVE-2009-0221, CVE-2009-0224)

    - Multiple file format vulnerabilities exist in the way PowerPoint reads sound data from specially crafted PowerPoint 4.0 files. (CVE-2009-0222, CVE-2009-0223, CVE-2009-0226, CVE-2009-0227, CVE-2009-1137)

    - Multiple PP7 memory corruption vulnerabilities exists in the way PowerPoint reads sound data from specially crafted PowerPoint 95 files and older PowerPoint 95 formatted files. (CVE-2009-0225, CVE-2009-1128, CVE-2009-1129)

    - A memory corruption vulnerability exists in the way PowerPoint accesses an invalid object in memory when parsing a specially crafted PowerPoint file. (CVE-2009-0556)

    - A heap corruption vulnerability exists in the way PowerPoint reads a malformed structure value in a specially crafted PowerPoint file. (CVE-2009-1130)

    - A data out of bounds vulnerability exists in the way Microsoft Office PowerPoint reads data that is too large in a specially crafted PowerPoint file. (CVE-2009-1131)

    Microsoft has released a security update that addresses these vulnerabilities by modifying the way that PowerPoint handles conditions that could cause memory corruption when opening specially crafted PowerPoint files.

    Affected Software:
    Microsoft Office PowerPoint 2000
    Microsoft Office PowerPoint 2002
    Microsoft Office PowerPoint 2003
    Microsoft Office PowerPoint 2007
    Microsoft Office PowerPoint Viewer 2003
    Microsoft Office PowerPoint Viewer 2007
    Microsoft Office Compatibility Pack

    Consequence
    Successful exploitation of this vulnerability allows an attacker to cause memory corruption and run arbitrary code as the logged-on user. If a user is logged on with administrative user rights, an attacker could take complete control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.
    Solution
    Patch:
    Following are links for downloading patches to fix the vulnerabilities:

    Microsoft Office 2000 Service Pack 3 (Microsoft Office PowerPoint 2000 Service Pack 3)

    Microsoft Office XP Service Pack 3 (Microsoft Office PowerPoint 2002 Service Pack 3)

    Microsoft Office 2003 Service Pack 3 (Microsoft Office PowerPoint 2003 Service Pack 3)

    2007 Microsoft Office System Service Pack 1 (Microsoft Office PowerPoint 2007 Service Pack 1)

    2007 Microsoft Office System Service Pack 2 (Microsoft Office PowerPoint 2007 Service Pack 2)

    PowerPoint Viewer 2003

    PowerPoint Viewer 2007 Service Pack 1 and PowerPoint Viewer 2007 Service Pack 2

    Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats Service Pack 1

    Microsoft Office Compatibility Pack for Word, Excel, and PowerPoint 2007 File Formats Service Pack 2

    Refer to Microsoft Security Bulletin MS09-017 for further details.

    Workarounds:
    Workaround for all CVE-IDs:
    Avoid opening Office files received from un-trusted sources.

    Workarounds for CVE-2009-0221, CVE-2009-0224, CVE-2009-0556, CVE-2009-1130:
    1) Use the Microsoft Office Isolated Conversion Environment (MOICE) when opening files from unknown or un-trusted sources because it protects Office 2003 installations by more securely opening Word, Excel, and PowerPoint binary format files.

    Impact of workaround: Office 2003 and earlier formatted documents that are converted to the 2007 Microsoft Office System Open XML format by MOICE lose their macro functionality. Documents protected with passwords and Digital Rights Management cannot be converted.

    2) Microsoft Office File Block policy should be used to block the opening of Office 2003 and earlier documents from unknown or untrusted sources.

    Impact of workaround: If File Block policy is configured without special "exempt directory" configuration (see KB922848), Office 2003 files or earlier versions will not open in Office 2003 or 2007 Microsoft Office System.

    Workaround for CVE-2009-0220, CVE-2009-0222, CVE-2009-0223, CVE-2009-0226, CVE-2009-0227, CVE-2009-1137:
    Restrict access to pp4x322.dll in Microsoft Office PowerPoint 2000 or Microsoft Office PowerPoint 2002

    Impact of workaround: It will prevent PowerPoint 4.0 files from being opened

    Workaround for CVE-2009-0225, CVE-2009-1128, CVE-2009-1129:
    Restrict access to pp7x32.dll in Microsoft Office PowerPoint 2000 or Microsoft Office PowerPoint 2002

    Impact of workaround: It will prevent PowerPoint 95 files from being opened

    Details on the workarounds can be found at MS09-017.

These new vulnerability checks are included in Qualys vulnerability signature 1.22.209-2. Each Qualys account is automatically updated with the latest vulnerability signatures as they become available. To view the vulnerability signature version in your account, from the Qualys Help menu, select the About tab.

Selective Scan Instructions Using Qualys

To perform a selective vulnerability scan, configure a scan profile to use the following options:

  1. Ensure access to TCP ports 135 and 139 are available.
  2. Enable Windows Authentication (specify Authentication Records).
  3. Enable the following Qualys IDs:
    • 110094
  4. If you would like the scan to return the Windows Hostname, also include QID 82044 and ensure access to UDP port 137 is available.
  5. If you would like to be notified if Qualys is unable to log on to a host (if Authentication fails), also include QID 105015.

In addition, prior to running a scan for these new vulnerabilities, you can estimate your exposure to these new threats by running the Risk Analysis Report, available from the Qualys Vulnerability Management Reports tab.

Access for Qualys Customers

Technical Support

For more information, customers may contact Qualys Technical Support.

About Qualys

The Qualys Cloud Platform and its integrated suite of security and compliance applications provides organizations of all sizes with a global view of their security and compliance solutions, while drastically reducing their total cost of ownership. Qualys solutions include: continuous monitoring, vulnerability management, policy compliance, PCI compliance, security assessment questionnaire, web application scanning, web application firewall, malware detection and SECURE Seal for security testing of web sites.