Qualys Vulnerability R&D Lab has released new vulnerability checks in the Qualys Cloud Platform to protect organizations against 15 vulnerabilities that were fixed in 6 bulletins announced today by Microsoft. Customers can immediately audit their networks for these and other new vulnerabilities by accessing their Qualys subscription. Visit Qualys Security Blog to prioritize remediation.
Microsoft has released 6 security bulletins to fix newly discovered flaws in their software. Qualys has released the following checks for these new vulnerabilities:
All supported releases of Microsoft Windows.
An elevation of privilege vulnerability exists in the WINS Server, due to improperly processing crafted packets over the loopback interface.
Refer to Microsoft Security Bulletin MS11-070 for further details.
The vulnerability occurs when specific Windows components incorrectly restrict the path used for loading external libraries. (CVE-2011-1991)
Windows XP Service Pack 3
Windows XP Professional x64 Edition Service Pack 2
Windows Server 2003 Service Pack 2
Windows Server 2003 x64 Edition Service Pack 2
Windows Server 2003 with SP2 for Itanium-based Systems
Windows Vista Service Pack 2
Windows Vista x64 Edition Service Pack 2
Windows Server 2008 for 32-bit Systems Service Pack 2
Windows Server 2008 for x64-based Systems Service Pack 2
Windows Server 2008 for Itanium-based Systems Service Pack 2
Windows 7 for 32-bit Systems and Windows 7 for 32-bit Systems Service Pack 1
Windows 7 for x64-based Systems and Windows 7 for x64-based Systems Service Pack 1
Windows Server 2008 R2 for x64-based Systems and Windows Server 2008 R2 for x64-based Systems Service Pack 1
Windows Server 2008 R2 for Itanium-based Systems and Windows Server 2008 R2 for Itanium-based Systems Service Pack 1
Windows Embedded Systems:- For additional information regarding security updates for embedded systems, refer to the following MSDN blog(s):
Refer to Microsoft Security Bulletin MS11-071 for further details.
Microsoft Excel is vulnerable to multiple remote code execution vulnerabilities.
This security update is rated Important for all supported editions of Microsoft Excel 2003, Microsoft Excel 2007, Microsoft Office 2007, Microsoft Excel 2010, Microsoft Office 2010, Microsoft Office 2004 for Mac, Microsoft Office 2008 for Mac, and Microsoft Office for Mac 2011; Open XML File Format Converter for Mac; and all supported versions of Microsoft Excel Viewer, Microsoft Office Compatibility Pack, Microsoft Excel Services installed on SharePoint Server 2007, Microsoft Excel Services installed on SharePoint Server 2010, and Microsoft Excel Web App 2010.
Note: Previously this was an iDefense Exclusive vulnerability with ID:635312
For a complete list of patch download links, please refer to Microsoft Security Bulletin MS11-072.
The vulnerability occurs in the core parsing code of Excel, and this code can not be disabled; however, it is possible to disable the opening of the older binary format files and use MOICE to convert the file to the newer XML-based format.
Refer to Microsoft Security Bulletin MS11-073 for further details.
1) Avoid opening Office files received from un-trusted sources.
2) Use Microsoft Office File Block policy to block the opening of Office 2003 and earlier documents from unknown or untrusted sources and locations. For more information on how to apply file block Policy, refer to cc179230.
Impact of workaround #2:
IFor Microsoft Office 2007, users who have configured the File Block policy and have not configured a special exempt directory or have not moved files to a trusted location will be unable to open Office 2003 files or earlier versions. (see KB922850)
3) Disable loading of libraries from WebDAV and remote network shares.
4) Disable the WebClient service.
Impact of workaround #5:
When the WebClient service is disabled, Web Distributed Authoring and Versioning (WebDAV) requests are not transmitted. In addition, any services that explicitly depend on the Web Client service will not start, and an error message will be logged in the System log.
5) Block TCP ports 139 and 445 at the firewall.
Impact of workaround #6:
Several Windows services use the affected ports. Blocking connectivity to the ports may cause various applications or services to not function.
Microsoft has released a security update that addresses the vulnerabilities by modifying the way Microsoft SharePoint validates and sanitizes user input, parses malicious XML and XSL files, and handles script contained inside specific request parameters.
This security update is rated Important for Microsoft Office Groove 2007, Microsoft SharePoint Workspace 2010, Microsoft Office Forms Server 2007, Microsoft Office SharePoint Server 2007, Microsoft Office SharePoint Server 2010, Microsoft Office Groove Data Bridge Server 2007, Microsoft Office Groove Management Server 2007, Microsoft Groove Server 2010, Microsoft SharePoint Services 2.0, Microsoft SharePoint Services 3.0, Microsoft SharePoint Foundation 2010, Microsoft Office Web Apps 2010, and Microsoft Word Web App 2010.
For a complete list of patch download links, please refer to Microsoft Security Bulletin MS11-074.
1) Enable Internet Explorer 8 and Internet Explorer 9 XSS filter in the Local intranet security zone
Impact of workaround #1: Internal sites not previously flagged as being XSS risks could be flagged.
These new vulnerability checks are included in Qualys vulnerability signature 1.28.217-3. 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.
To perform a selective vulnerability scan, configure a scan profile to use the following options:
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.
For more information, customers may contact Qualys Technical Support.
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.