Objavljena je revizija sigurnosnog upozorenja s oznakom MS11-009, prvotno objavljenog 8. veljače 2011. U originalnoj preporuci opisan je propust u JScript i VBScript komponentama Microsoft Windows operacijskih sustava koje napadači mogu iskoristiti za otkrivanje osjetljivih informacija.

Microsoft Security Bulletin MS11-009 - Important
Vulnerability in JScript and VBScript Scripting Engines Could Allow Information Disclosure (2475792)

Published: Tuesday, February 08, 2011 | Updated: Tuesday, August 14, 2012

Version: 2.1
General Information
Executive Summary

This security update resolves a privately reported vulnerability in the JScript and VBScript scripting engines. The vulnerability could allow information disclosure if a user visited a specially crafted Web site. An attacker would have no way to force users to visit these Web sites. Instead, an attacker would have to convince users to visit the Web site, typically by getting them to click a link in an e-mail message or Instant Messenger message that takes users to the attacker's Web site.

This security update is rated Important for all supported editions of Windows 7 and Moderate for all supported editions of Windows Server 2008 R2. For more information, see the subsection, Affected and Non-Affected Software, in this section.

The security update addresses the vulnerability by correcting the manner in which the JScript and VBScript scripting engines process scripts in Web pages. For more information about the vulnerability, see the Frequently Asked Questions (FAQ) subsection for the specific vulnerability entry under the next section, Vulnerability Information.

Recommendation. The majority of customers have automatic updating enabled and 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 and install this update manually. For information about specific configuration options in automatic updating, see Microsoft Knowledge Base Article 294871.

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. None
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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
Operating System	Component	Maximum Security Impact	Aggregate Severity Rating	Bulletins Replaced by this Update
Windows 7 for 32-bit Systems and Windows 7 for 32-bit Systems Service Pack 1	JScript 5.8	Information Disclosure	Important	None
Windows 7 for 32-bit Systems and Windows 7 for 32-bit Systems Service Pack 1	VBScript 5.8	Information Disclosure	Important	MS10-022
Windows 7 for x64-based Systems and Windows 7 for x64-based Systems Service Pack 1	JScript 5.8	Information Disclosure	Important	None
Windows 7 for x64-based Systems and Windows 7 for x64-based Systems Service Pack 1	VBScript 5.8	Information Disclosure	Important	MS10-022
Windows Server 2008 R2 for x64-based Systems and Windows Server 2008 R2 for x64-based Systems Service Pack 1	JScript 5.8**	Information Disclosure	Moderate	None
Windows Server 2008 R2 for x64-based Systems and Windows Server 2008 R2 for x64-based Systems Service Pack 1	VBScript 5.8**	Information Disclosure	Moderate	MS10-022
Windows Server 2008 R2 for Itanium-based Systems and Windows Server 2008 R2 for Itanium-based Systems Service Pack 1	JScript 5.8	Information Disclosure	Moderate	None
Windows Server 2008 R2 for Itanium-based Systems and Windows Server 2008 R2 for Itanium-based Systems Service Pack 1	VBScript 5.8	Information Disclosure	Moderate	MS10-022

**Server Core installation not affected. The vulnerabilities addressed by this update do not affect supported editions of Windows Server 2008 or Windows Server 2008 R2 as indicated, when installed using the Server Core installation option. For more information on this installation option, see the TechNet articles, Managing a Server Core Installation and Servicing a Server Core Installation. Note that the Server Core installation option does not apply to certain editions of Windows Server 2008 and Windows Server 2008 R2; see Compare Server Core Installation Options.

Non-Affected Software
Operating System	Component
Windows XP Service Pack 3	JScript 5.7
JScript 5.8
VBScript 5.7
VBScript 5.8
Windows XP Professional x64 Edition Service Pack 2	JScript 5.6
JScript 5.7
JScript 5.8
VBScript 5.6
VBScript 5.7
VBScript 5.8
Windows Server 2003 Service Pack 2	JScript 5.6
JScript 5.7
JScript 5.8
VBScript 5.6
VBScript 5.7
VBScript 5.8
Windows Server 2003 x64 Edition Service Pack 2	JScript 5.6
JScript 5.7
JScript 5.8
VBScript 5.6
VBScript 5.7
VBScript 5.8
Windows Server 2003 with SP2 for Itanium-based Systems	JScript 5.6
JScript 5.7
VBScript 5.6
VBScript 5.7
Windows Vista Service Pack 1 and Windows Vista Service Pack 2	JScript 5.7
JScript 5.8
VBScript 5.7
VBScript 5.8
Windows Vista x64 Edition Service Pack 1 and Windows Vista x64 Edition Service Pack 2	JScript 5.7
JScript 5.8
VBScript 5.7
VBScript 5.8
Windows Server 2008 for 32-bit Systems and Windows Server 2008 for 32-bit Systems Service Pack 2	JScript 5.7
JScript 5.8
VBScript 5.7
VBScript 5.8
Windows Server 2008 for x64-based Systems and Windows Server 2008 for x64-based Systems Service Pack 2	JScript 5.7
JScript 5.8
VBScript 5.7
VBScript 5.8
Windows Server 2008 for Itanium-based Systems and Windows Server 2008 for Itanium-based Systems Service Pack 2	JScript 5.7
VBScript 5.7
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Frequently Asked Questions (FAQ) Related to This Security Update
Vulnerability Information
Severity Ratings and Vulnerability Identifiers
Scripting Engines Information Disclosure Vulnerability - CVE-2011-0031
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:

    Yamata Li of Palo Alto Networks for reporting the Scripting Engines Information Disclosure Vulnerability (CVE-2011-0031)

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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 (February 8, 2011): Bulletin published.
    V2.0 (March 8, 2011): Clarified the Affected Software to include Windows 7 for 32-bit Systems Service Pack 1, Windows 7 for x64-based Systems Service Pack 1, Windows Server 2008 R2 for x64-based Systems Service Pack 1, and Windows Server 2008 R2 for Itanium-based Systems Service Pack 1. See the entry to the section, Frequently Asked Questions (FAQ) Related to This Security Update, that explains this revision.
    V2.1 (August 14, 2012): Clarified that users with Internet Explorer 9 installed on their systems do not need to install this update. See the section, Frequently Asked Questions (FAQ) Related to This Security Update, for more information.