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  ZDI-10-015: Microsoft Windows RLE Video Decompressor Remote Code Execution Vulnerability

From:MICROSOFT <secure_(at)_microsoft.com>
Date:10.02.2010
Subject:Microsoft Security Bulletin MS10-013 - Critical Vulnerability in Microsoft DirectShow Could Allow Remote Code Execution (977935)

Microsoft Security Bulletin MS10-013 - Critical
Vulnerability in Microsoft DirectShow Could Allow Remote Code Execution (977935)
Published: February 09, 2010

Version: 1.0
General Information
Executive Summary

This security update resolves a privately reported vulnerability in Microsoft DirectShow. The vulnerability could allow remote code execution if a user opened a specially crafted AVI 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.

This security update is rated Critical for all supported editions of Microsoft Windows except for all supported Itanium-based editions of Windows Server 2003, Windows Server 2008, and Windows Server 2008 R2, for which this security update is rated Important. For more information, see the subsection, Affected and Non-Affected Software, in this section.

The security update addresses the vulnerability by correcting the way that DirectShow opens AVI files. 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 immediately 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 DirectShow Component Maximum Security Impact Aggregate Severity Rating Bulletins Replaced by this Update
Microsoft Windows 2000

Microsoft Windows 2000 Service Pack 4


AVI Filter
(KB977914)


Remote Code Execution


Critical


MS09-038

Microsoft Windows 2000 Service Pack 4


Quartz
(KB975560)

Quartz in DirectX 9.0[1]
(KB975560)


Remote Code Execution


Critical


MS09-028
Windows XP

Windows XP Service Pack 2 and Windows XP Service Pack 3


AVI Filter
(KB977914)


Remote Code Execution


Critical


MS09-038

Windows XP Service Pack 2 and Windows XP Service Pack 3


Quartz
(KB975560)


Remote Code Execution


Critical


MS09-028
Windows XP Professional x64 Edition

Windows XP Professional x64 Edition Service Pack 2


AVI Filter
(KB977914)


Remote Code Execution


Critical


MS09-038

Windows XP Professional x64 Edition Service Pack 2


Quartz
(KB975560)


Remote Code Execution


Critical


MS09-028
Windows Server 2003

Windows Server 2003 Service Pack 2


AVI Filter
(KB977914)


Remote Code Execution


Critical


MS09-038

Windows Server 2003 Service Pack 2


Quartz
(KB975560)


Remote Code Execution


Critical


MS09-028
Windows Server 2003 x64 Edition

Windows Server 2003 x64 Edition Service Pack 2


AVI Filter
(KB977914)


Remote Code Execution


Critical


MS09-038

Windows Server 2003 x64 Edition Service Pack 2


Quartz
(KB975560)


Remote Code Execution


Critical


MS09-028
Windows Server 2003 for Itanium-based Systems

Windows Server 2003 with SP2 for Itanium-based Systems


AVI Filter
(KB977914)


Remote Code Execution


Important


MS09-038

Windows Server 2003 with SP2 for Itanium-based Systems


Quartz
(KB975560)


Remote Code Execution


Important


MS09-028
Windows Vista

Windows Vista, Windows Vista Service Pack 1 and Windows Vista Service Pack 2


Quartz
(KB975560)


Remote Code Execution


Critical


None
Windows Vista x64 Edition

Windows Vista x64 Edition, Windows Vista x64 Edition Service Pack 1, and Windows Vista x64 Edition Service Pack 2


Quartz
(KB975560)


Remote Code Execution


Critical


None
Windows Server 2008

Windows Server 2008 for 32-bit Systems and Windows Server 2008 for 32-bit Systems Service Pack 2


Quartz**
(KB975560)


Remote Code Execution


Critical


None
Windows Server 2008 for x64-based Systems

Windows Server 2008 for x64-based Systems and Windows Server 2008 for x64-based Systems Service Pack 2


Quartz**
(KB975560)


Remote Code Execution


Critical


None
Windows Server 2008 for Itanium-based Systems

Windows Server 2008 for Itanium-based Systems and Windows Server 2008 for Itanium-based Systems Service Pack 2


Quartz
(KB975560)


Remote Code Execution


Important


None
Windows 7

Windows 7 for 32-bit Systems


Quartz
(KB975560)


Remote Code Execution


Critical


None
Windows 7 for x64-based Systems

Windows 7 for x64-based Systems


Quartz
(KB975560)


Remote Code Execution


Critical


None
Windows Server 2008 R2 for x64-based Systems

Windows Server 2008 R2 for x64-based Systems


Quartz**
(KB975560)


Remote Code Execution


Critical


None
Windows Server 2008 R2 for Itanium-based Systems

Windows Server 2008 R2 for Itanium-based Systems


Quartz
(KB975560)


Remote Code Execution


Important


None

**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 MSDN articles, Server Core and Server Core for Windows Server 2008 R2. 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.

Notes for DirectX

[1]The update for DirectX 9.0 also applies to DirectX 9.0a, DirectX 9.0b, and DirectX 9.0c on Microsoft Windows 2000.
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Frequently Asked Questions (FAQ) Related to This Security Update

Where are the file information details?
Refer to the reference tables in the Security Update Deployment section for the location of the file information details.

Why do two updates apply to the same affected operating system in several cases?
This bulletin addresses a vulnerability that is present in two different components. Two update packages with different KB numbers are available, one for each affected component. KB977914 addresses the vulnerability in the AVI Filter. KB975560 addresses the vulnerability in DirectX. On affected operating systems where both components these are present, both updates need to be installed.

On supported editions of Microsoft Windows 2000, Windows XP, and Windows Server 2003, customers need to apply both update packages KB977914 and KB975560, as both apply to their environment. On other affected operating systems, customers only need to apply security update package KB975560.

I am using an older release of the software discussed in this security bulletin. What should I do?
The affected software listed in this bulletin have been tested to determine which releases are affected. Other releases are past their support life cycle. For more information about the product lifecycle, visit the Microsoft Support Lifecycle Web site.

It should be a priority for customers who have older releases of the software to migrate to supported releases to prevent potential exposure to vulnerabilities. To determine the support lifecycle for your software release, see Select a Product for Lifecycle Information. For more information about service packs for these software releases, see Lifecycle Supported Service Packs.

Customers who require custom support for older software must contact their Microsoft account team representative, their Technical Account Manager, or the appropriate Microsoft partner representative for custom support options. Customers without an Alliance, Premier, or Authorized Contract can contact their local Microsoft sales office. For contact information, visit the Microsoft Worldwide Information Web site, select the country in the Contact Information list, and then click Go to see a list of telephone numbers. When you call, ask to speak with the local Premier Support sales manager. For more information, see the Microsoft Support Lifecycle Policy FAQ.
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Vulnerability Information

Severity Ratings and Vulnerability Identifiers

The following severity ratings assume the potential maximum impact of the vulnerability. For information regarding the likelihood, within 30 days of this security bulletin's release, of the exploitability of the vulnerability in relation to its severity rating and security impact, please see the Exploitability Index in the February bulletin summary. For more information, see Microsoft Exploitability Index.
Vulnerability Severity Rating and Maximum Security Impact by Affected Software
Affected Software DirectShow Heap Overflow Vulnerability - CVE-2010-0250 Aggregate Severity Rating
AVI Filter

AVI Filter on Microsoft Windows 2000 Service Pack 4


Critical
Remote Code Execution


Critical

AVI Filter on Windows XP Service Pack 2 and Windows XP Service Pack 3


Critical
Remote Code Execution


Critical

AVI Filter on Windows XP Professional x64 Edition Service Pack 2


Critical
Remote Code Execution


Critical

AVI Filter on Windows Server 2003 Service Pack 2


Critical
Remote Code Execution


Critical

AVI Filter on Windows Server 2003 x64 Edition Service Pack 2


Critical
Remote Code Execution


Critical

AVI Filter on Windows Server 2003 with SP2 for Itanium-based Systems


Important
Remote Code Execution


Important
Quartz

Quartz on Microsoft Windows 2000 Service Pack 4


Critical
Remote Code Execution


Critical

Quartz on Windows XP Service Pack 2 and Windows XP Service Pack 3


Critical
Remote Code Execution


Critical

Quartz on Windows XP Professional x64 Edition Service Pack 2


Critical
Remote Code Execution


Critical

Quartz on Windows Server 2003 Service Pack 2


Critical
Remote Code Execution


Critical

Quartz on Windows Server 2003 x64 Edition Service Pack 2


Critical
Remote Code Execution


Critical

Quartz on Windows Server 2003 with SP2 for Itanium-based Systems


Important
Remote Code Execution


Important

Quartz on Windows Vista, Windows Vista Service Pack 1, and Windows Vista Service Pack 2


Critical
Remote Code Execution


Critical

Quartz on Windows Vista x64 Edition, Windows Vista x64 Edition Service Pack 1, and Windows Vista x64 Edition Service Pack 2


Critical
Remote Code Execution


Critical

Quartz on Windows Server 2008 for 32-bit Systems and Windows Server 2008 for 32-bit Systems Service Pack 2**


Critical
Remote Code Execution


Critical

Quartz on Windows Server 2008 for x64-based Systems and Windows Server 2008 for x64-based Systems Service Pack 2**


Critical
Remote Code Execution


Critical

Quartz on Windows Server 2008 for Itanium-based Systems and Windows Server 2008 for Itanium-based Systems Service Pack 2


Important
Remote Code Execution


Important

Quartz on Windows 7 for 32-bit Systems


Critical
Remote Code Execution


Critical

Quartz on Windows 7 for x64-based Systems


Critical
Remote Code Execution


Critical

Quartz on Windows Server 2008 R2 for x64-based Systems


Critical
Remote Code Execution


Critical

Quartz on Windows Server 2008 R2 for Itanium-based Systems


Important
Remote Code Execution


Important

**Server Core installation not affected. The vulnerabilities addressed by this update do not affect supported editions of Windows Server 2008 and Windows Server 2008 R2 when installed using the Server Core installation option. For more information on this installation option, see the MSDN articles, Server Core and Server Core for Windows Server 2008 R2. 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.
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DirectShow Heap Overflow Vulnerability - CVE-2010-0250

A remote code execution vulnerability exists in the way that Microsoft DirectShow parses AVI media files. This vulnerability could allow remote code execution if a user opened a specially crafted AVI 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.

To view this vulnerability as a standard entry in the Common Vulnerabilities and Exposures list, see CVE-2010-0250.

Mitigating Factors for DirectShow Heap Overflow Vulnerability - CVE-2010-0250

Mitigation refers to a setting, common configuration, or general best-practice, existing in a default state, that could reduce the severity of exploitation of a vulnerability. The following mitigating factors may be helpful in your situation:


In a Web-based attack scenario, an attacker could host a Web site that contains a Web page that is used to exploit this vulnerability. In addition, compromised Web sites and Web sites that accept or host user-provided content or advertisements could contain specially crafted content that could exploit this vulnerability. In all cases, however, 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. After they click the link, they would be prompted to perform several actions. An attack could only occur after they performed these actions.


The vulnerability cannot be exploited automatically through e-mail. For an attack to be successful, a user must open an attachment that is sent in an e-mail message.


An attacker who successfully exploited this vulnerability 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.
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Workarounds for DirectShow Heap Overflow Vulnerability - CVE-2010-0250

Microsoft has not identified any workarounds for this vulnerability.
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FAQ for DirectShow Heap Overflow Vulnerability - CVE-2010-0250

What is the scope of the vulnerability?
This is a remote code execution vulnerability. An attacker who successfully exploited this vulnerability 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.

What causes the vulnerability?
The Microsoft DirectShow component does not properly handle specially crafted AVI files.

What is DirectX?
Microsoft DirectX is a feature of the Windows operating system. It is used for streaming media on Microsoft Windows operating systems to enable graphics and sound when playing games or watching video.

What is DirectShow?
DirectX consists of a set of low-level Application Programming Interfaces (APIs) used by Windows programs for multimedia support. Within DirectX, the DirectShow technology performs client-side audio and video sourcing, manipulation and rendering.

Microsoft DirectShow is used for streaming media on Microsoft Windows operating systems. DirectShow is used for high-quality capture and playback of multimedia streams. It automatically detects and uses video and audio acceleration hardware when available, but also supports systems without acceleration hardware. DirectShow is also integrated with other DirectX technologies. Some examples of applications that use DirectShow include DVD players, video editing applications, AVI to ASF converters, MP3 players, and digital video capture applications

What is an AVI media file?
Audio Video Interleave (AVI) is a multimedia container format that uses the Resource Interchange File Format (RIFF). AVI is defined by Microsoft. The .avi file format is a common format for audio and video data on a computer.

Audio content or video content that is compressed with a wide variety of codecs can be stored in an .avi container file and played in Windows Media Player, if the appropriate codecs are installed on the computer.

What might an attacker use the vulnerability to do?
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.

How could an attacker exploit the vulnerability?
This vulnerability requires that a user open a specially crafted AVI file or receive specially crafted streaming content from a Web site or any application that delivers Web content.

In a Web-based attack scenario, an attacker would have to host a Web site that contains specially crafted content that is used to attempt to exploit this vulnerability. In addition, compromised Web sites and Web sites that accept or host user-provided content could contain specially crafted content that could exploit this vulnerability. An attacker would have no way to force users to visit a specially crafted Web site. Instead, an attacker would have to convince them to visit the Web site, typically by getting them to click a link in an e-mail message or Instant Messenger message that takes them to the attacker's site.

In an e-mail attack scenario, an attacker could exploit the vulnerability by sending a media file with a specially crafted AVI file embedded in it to the user and by convincing the user to open the file.

What systems are primarily at risk from the vulnerability?
Workstations and terminal servers are primarily at risk. Servers could be at more risk if users who should not have sufficient administrative permissions are given the ability to log on to servers and to run programs. However, best practices strongly discourage allowing this.

What does the update do?
The update addresses the issue by correcting the way that DirectShow opens AVI files.

When this security bulletin was issued, had this vulnerability been publicly disclosed?
No. Microsoft received information about this vulnerability through responsible disclosure.

When this security bulletin was issued, had Microsoft received any reports that this vulnerability was being exploited?
No. Microsoft had not received any information to indicate that this vulnerability had been publicly used to attack customers when this security bulletin was originally issued.

Other Information
Acknowledgments

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


TippingPoint and the Zero Day Initiative for reporting the DirectShow Heap Overflow Vulnerability (CVE-2010-0250)

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.

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.

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.

Revisions


V1.0 (February 9, 2010): Bulletin published.

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