Objavljena je revizija sigurnosnog upozorenja oznake MS11-074, a vezane uz propuste Microsoft SharePoint i Windows SharePoint servisa. Spomenuti propusti napadaču omogućuju otkrivanje osjetljivih informacija, izvođenje XSS napada te dobivanje većih ovlasti.

Microsoft Security Bulletin MS11-074 - Important
Vulnerabilities in Microsoft SharePoint Could Allow Elevation of Privilege (2451858)

Published: Tuesday, September 13, 2011 | Updated: Wednesday, September 21, 2011

Version: 1.2
General Information
Executive Summary

This security update resolves five privately reported vulnerabilities and one publicly disclosed vulnerability in Microsoft SharePoint and Windows SharePoint Services. The most severe vulnerabilities could allow elevation of privilege if a user clicked on a specially crafted URL or visited a specially crafted Web site. For the most severe vulnerabilities, Internet Explorer 8 and Internet Explorer 9 users browsing to a SharePoint site in the Internet Zone are at a reduced risk because, by default, the XSS Filter in Internet Explorer 8 and Internet Explorer 9 helps to block the attacks in the Internet Zone. The XSS Filter in Internet Explorer 8 and Internet Explorer 9, however, is not enabled by default in the Intranet Zone.

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 more information, see the subsection, Affected and Non-Affected Software, in this section.

The security update addresses the vulnerabilities by modifying the way that Microsoft SharePoint validates and sanitizes user input, parses malicious XML and XSL files, and handles script contained inside of specific request parameters. For more information about the vulnerabilities, see the Frequently Asked Questions (FAQ) subsection for the specific vulnerability entry under the next section, Vulnerability Information.

Recommendation. Customers can configure automatic updating to check online for updates from Microsoft Update by using the Microsoft Update service. Customers who have automatic updating enabled and configured to check online for updates from Microsoft Update typically will not need to take any action because this security update will be downloaded and installed automatically. Customers who have not enabled automatic updating need to check for updates from Microsoft Update and install this update manually. For information about specific configuration options in automatic updating in supported editions of Windows XP and Windows Server 2003, see Microsoft Knowledge Base Article 294871. For information about automatic updating in supported editions of Windows Vista, Windows Server 2008, Windows 7, and Windows Server 2008 R2, see Understanding Windows automatic updating.

For administrators and enterprise installations, or end users who want to install this security update manually, Microsoft recommends that customers apply the update at the earliest opportunity using update management software, or by checking for updates using the Microsoft Update service.

See also the section, Detection and Deployment Tools and Guidance, later in this bulletin.

Known Issues. Microsoft Knowledge Base Article 2451858 documents the currently known issues that customers may experience when installing this security update. The article also documents recommended solutions for these issues. When currently known issues and recommended solutions pertain only to specific releases of this software, this article provides links to further articles.
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Affected and Non-Affected Software

The following software have been tested to determine which versions or editions are affected. Other versions or editions are either past their support life cycle or are not affected. To determine the support life cycle for your software version or edition, visit Microsoft Support Lifecycle.

Affected Software

Microsoft Office
Software	Maximum Security Impact	Aggregate Severity Rating	Bulletins Replaced by this Update
Microsoft Office Groove 2007 Service Pack 2
(KB2552997)	Information Disclosure	Important	MS11-016
Microsoft SharePoint Workspace 2010 and Microsoft SharePoint Workspace 2010 Service Pack 1 (32-bit editions)
(KB2566445)	Information Disclosure	Important	None
Microsoft SharePoint Workspace 2010 and Microsoft SharePoint Workspace 2010 Service Pack 1 (64-bit editions)
(KB2566445)	Information Disclosure	Important	None

Microsoft Server Software 
Software	Update Package 	Maximum Security Impact	Aggregate Severity Rating	Bulletins Replaced by this Update
Microsoft Forms Server
Microsoft Office Forms Server 2007 Service Pack 2 (32-bit editions)
(KB2553005)	Not applicable	Elevation of Privilege	Important	None
Microsoft Office Forms Server 2007 Service Pack 2 (64-bit editions)
(KB2553005)	Not applicable	Elevation of Privilege	Important	None
Microsoft SharePoint Server
Microsoft Office SharePoint Server 2007 Service Pack 2 (32-bit editions)[1]	Microsoft Office SharePoint Server 2007 Service Pack 2 (coreserver) (32-bit editions)
(KB2508964)

Microsoft Office SharePoint Server 2007 Service Pack 2 (oserver) (32-bit editions)
(KB2553001)

Microsoft Office SharePoint Server 2007 Service Pack 2 (sserverx) (32-bit editions)
(KB2553002)

Microsoft Office SharePoint Server 2007 Service Pack 2 (dlc) (32-bit editions)
(KB2553003)	Elevation of Privilege	Important	KB2345212 in MS10-072 replaced by KB2508964


No bulletin replaced by KB2553001



No bulletin replaced by KB255002



KB2433089 in MS10-104 replaced by KB2553003
Microsoft Office SharePoint Server 2007 Service Pack 2 (64-bit editions)[1]	Microsoft Office SharePoint Server 2007 Service Pack 2 (coreserver) (64-bit editions)
(KB2508964)

Microsoft Office SharePoint Server 2007 Service Pack 2 (oserver) (64-bit editions)
(KB2553001)

Microsoft Office SharePoint Server 2007 Service Pack 2 (sserverx) (64-bit editions)
(KB2553002)

Microsoft Office SharePoint Server 2007 Service Pack 2 (dlc) (64-bit editions)
(KB2553003)	Elevation of Privilege	Important	KB2345212 in MS10-072 replaced by KB2508964


No bulletin replaced by KB2553001



No bulletin replaced by KB255002



KB2433089 in MS10-104 replaced by KB2553003
Microsoft Office SharePoint Server 2010 and Microsoft Office SharePoint Server 2010 Service Pack 1	Microsoft Office SharePoint Server 2010 and Microsoft Office SharePoint Server 2010 Service Pack 1 (osrchwfe)
(KB2494022)

Microsoft Office SharePoint Server 2010 and Microsoft Office SharePoint Server 2010 Service Pack 1 (osrv)
(KB2560885)

Microsoft Office SharePoint Server 2010 and Microsoft Office SharePoint Server 2010 Service Pack 1 (pplwfe)
(KB2560890)

Microsoft Office SharePoint Server 2010 and Microsoft Office SharePoint Server 2010 Service Pack 1 (ppsmawfe)
(KB2566456)

Microsoft Office SharePoint Server 2010 and Microsoft Office SharePoint Server 2010 Service Pack 1 (dlc)
(KB2566954)

Microsoft Office SharePoint Server 2010 and Microsoft Office SharePoint Server 2010 Service Pack 1 (ppsmamui)
(KB2566958)

Microsoft Office SharePoint Server 2010 and Microsoft Office SharePoint Server 2010 Service Pack 1 (wosrv)
(KB2566960)	Elevation of Privilege	Important	None
Microsoft Groove Server
Microsoft Office Groove Data Bridge Server 2007 Service Pack 2
(KB2552999)	Not applicable	Elevation of Privilege	Important	None
Microsoft Office Groove Management Server 2007 Service Pack 2
(KB2552998)	Not applicable	Elevation of Privilege	Important	None
Microsoft Groove Server 2010 and Microsoft Groove Server 2010 Service Pack 1
(KB2508965)	Not applicable	Elevation of Privilege	Important	MS10-072
Windows SharePoint Services and Microsoft SharePoint Foundation
Microsoft Windows SharePoint Services 2.0
(KB2494007)	Not applicable	Elevation of Privilege	Important	None
Microsoft Windows SharePoint Services 3.0 Service Pack 2 (32-bit versions)
(KB2493987)	Not applicable	Elevation of Privilege	Important	MS10-072
Microsoft Windows SharePoint Services 3.0 Service Pack 2 (64-bit versions)
(KB2493987)	Not applicable	Elevation of Privilege	Important	MS10-072
Microsoft SharePoint Foundation 2010 and Microsoft SharePoint Foundation 2010 Service Pack 1
(KB2494001)	Not applicable	Elevation of Privilege	Important	MS10-072

[1]For supported editions of Microsoft Office SharePoint Server 2007, in addition to security update packages for Microsoft Office SharePoint 2007 (KB2508964, KB2553001, KB2553002, and KB2553003), customers also need to install the security update for Microsoft Windows SharePoint Services 3.0 (KB2493987) to be protected from the vulnerabilities described in this bulletin.

Microsoft Office Web Apps 
Software	Component 	Maximum Security Impact	Aggregate Severity Rating	Bulletins Replaced by this Update
Microsoft Office Web Apps 2010 and Microsoft Office Web Apps 2010 Service Pack 1
(KB2566449)	Not applicable	Information Disclosure	Important	MS11-022
Microsoft Office Web Apps 2010 and Microsoft Office Web Apps 2010 Service Pack 1	Microsoft Word Web App 2010 and Microsoft Word Web App 2010 Service Pack 1
(KB2566450)	Information Disclosure	Important	MS10-079

Non-Affected Software 
Office and Other Software
Microsoft Office SharePoint Portal Server 2003 Service Pack 3
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Frequently Asked Questions (FAQ) Related to This Security Update
Vulnerability Information
Severity Ratings and Vulnerability Identifiers
XSS in SharePoint Calendar Vulnerability - CVE-2011-0653
HTML Sanitization Vulnerability - CVE-2011-1252
Editform Script Injection Vulnerability - CVE-2011-1890
Contact Details Reflected XSS Vulnerability - CVE-2011-1891
SharePoint Remote File Disclosure Vulnerability - CVE-2011-1892
SharePoint XSS Vulnerability - CVE-2011-1893
Update Information
Detection and Deployment Tools and Guidance
Security Update Deployment
Other Information
Acknowledgments

Microsoft thanks the following for working with us to help protect customers:

    Andrew Connell of Critical Path Training, LLC for reporting the XSS in SharePoint Calendar Vulnerability (CVE-2011-0653)
    David Feldman of Raytheon for reporting the XSS in SharePoint Calendar Vulnerability (CVE-2011-0653)
    Adi Cohen of IBM Rational Application Security for reporting HTML Sanitization Vulnerability (CVE-2011-1252)
    Trend Micro for working with us on HTML Sanitization Vulnerability (CVE-2011-1252)
    Pedro Jimenez of ITT for reporting the Editform Script Injection Vulnerability (CVE-2011-1890)
    Seeker automatic application security testing solution for reporting the Contact Details Reflected XSS Vulnerability (CVE-2011-1891)
    Nicolas Grégoire of Agarri for reporting the SharePoint Remote File Disclosure Vulnerability (CVE-2011-1892)
    Jim LaValley of LaValley Consulting, LLC for reporting the SharePoint XSS Vulnerability (CVE-2011-1893)
    Irene Abezgauz of Seeker for working with us on a defense-in-depth update to help improve the handling of cross-application redirects in Microsoft SharePoint

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Microsoft Active Protections Program (MAPP)

To improve security protections for customers, Microsoft provides vulnerability information to major security software providers in advance of each monthly security update release. Security software providers can then use this vulnerability information to provide updated protections to customers via their security software or devices, such as antivirus, network-based intrusion detection systems, or host-based intrusion prevention systems. To determine whether active protections are available from security software providers, please visit the active protections Web sites provided by program partners, listed in Microsoft Active Protections Program (MAPP) Partners.
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Support

    Customers in the U.S. and Canada can receive technical support from Security Support or 1-866-PCSAFETY. There is no charge for support calls that are associated with security updates. For more information about available support options, see Microsoft Help and Support.
    International customers can receive support from their local Microsoft subsidiaries. There is no charge for support that is associated with security updates. For more information about how to contact Microsoft for support issues, visit the International Support Web site.

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Disclaimer

The information provided in the Microsoft Knowledge Base is provided "as is" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.
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Revisions

    V1.0 (September 13, 2011): Bulletin published.
    V1.1 (September 13, 2011): Added update link and package information for the Microsoft Office SharePoint Server 2010 and Microsoft Office SharePoint Server 2010 Service Pack 1 (pplwfe) (KB2560890) update. This is an informational change only. There were no changes to the security update files or detection logic.
    V1.2 (September 21, 2011): Removed erroneous reference to Microsoft Knowledge Base Article 2553001 in the deployment reference table for Microsoft Groove Server 2007. This is an informational change only. There were no changes to the security update files or detection logic.