Security Bulletin

Microsoft Security Bulletin MS05-025 - Critical

Cumulative Security Update for Internet Explorer (883939)

Published: June 14, 2005 | Updated: July 06, 2005

Version: 1.2

Summary

Who should read this document: Customers who use Microsoft Windows

Impact of Vulnerability: Remote Code Execution

Maximum Severity Rating: Critical

Recommendation: Customers should apply the update immediately.

Security Update Replacement This update replaces the update that is included with Microsoft Security Bulletin MS05-020. That update is also a cumulative update.

Caveats: Microsoft Knowledge Base Article 883939 documents the currently known issues that customers may experience when they install this security update. The article also documents recommended solutions for these issues. For more information, see Microsoft Knowledge Base Article 883939.

This update does include hotfixes that have been released since the release of MS04-004 or MS04-025, but they will only be installed on systems that need them. Customers who have received hotfixes from Microsoft or from their support providers since the release of MS04-004 or MS04-025 should review the “I have received a hotfix from Microsoft or my support provider since the release of MS04-004. Is that hotfix included in this security update?” question in the FAQ section of this bulletin to determine how you can make sure that the necessary hotfixes are installed. Microsoft Knowledge Base Article 883939 also documents this in more detail.

Tested Software and Security Update Download Locations:

Affected Software:

  • Microsoft Windows 2000 Service Pack 3 and Microsoft Windows 2000 Service Pack 4
  • Microsoft Windows XP Service Pack 1 and Microsoft Windows XP Service Pack 2
  • Microsoft Windows XP 64-Bit Edition Service Pack 1 (Itanium)
  • Microsoft Windows XP 64-Bit Edition Version 2003 (Itanium)
  • Microsoft Windows XP Professional x64 Edition
  • Microsoft Windows Server 2003
  • Microsoft Windows Server 2003 Service Pack 1
  • Microsoft Windows Server 2003 for Itanium-based Systems
  • Microsoft Windows Server 2003 with SP1 for Itanium-based Systems
  • Microsoft Windows Server 2003 x64 Edition
  • Microsoft Windows 98, Microsoft Windows 98 Second Edition (SE), and Microsoft Windows Millennium Edition (ME)

Tested Microsoft Windows Components:

Affected Components:

  • Internet Explorer 5.01 Service Pack 3 on Microsoft Windows 2000 Service Pack 3: Download the update
  • Internet Explorer 5.01 Service Pack 4 on Microsoft Windows 2000 Service Pack 4: Download the update
  • Internet Explorer 6 Service Pack 1 on Microsoft Windows 2000 Service Pack 3, on Microsoft Windows 2000 Service Pack 4, or on Microsoft Windows XP Service Pack 1: Download the update
  • Internet Explorer 6 for Microsoft Windows XP Service Pack 2: Download the update
  • Internet Explorer 6 Service Pack 1 for Microsoft Windows XP 64-Bit Edition Service Pack 1 (Itanium): Download the update
  • Internet Explorer 6 for Microsoft Windows Server 2003 and Microsoft Windows Server 2003 Service Pack 1: Download the update
  • Internet Explorer 6 for Microsoft Windows XP 64-Bit Edition Version 2003 (Itanium), Microsoft Windows Server 2003 for Itanium-based Systems and Microsoft Windows Server 2003 with SP1 for Itanium-based Systems: Download the update
  • Internet Explorer 6 for Microsoft Windows Server 2003 x64 Edition, and Microsoft Windows XP Professional x64 Edition: Download the update
  • Internet Explorer 5.5 Service Pack 2 on Microsoft Windows Millennium Edition – Review the FAQ section of this bulletin for details about this version.
  • Internet Explorer 6 Service Pack 1 on Microsoft Windows 98, on Microsoft Windows 98 SE, or on Microsoft Windows Millennium Edition – Review the FAQ section of this bulletin for details about this version.

The software in this list has been tested to determine whether the versions are affected. Other versions either no longer include security update support or may not be affected. To determine the support life cycle for your product and version, visit the Microsoft Support Lifecycle Web site.

General Information

Executive Summary

Executive Summary:

This update resolves two newly-discovered, publicly and privately reported vulnerabilities. Each vulnerability is documented in this bulletin in its own “Vulnerability Details” section of this bulletin.

If a user is logged on with administrative user rights, an attacker who successfully exploited the most severe of these vulnerabilities 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.

We recommend that customers apply the update immediately.

Severity Ratings and Vulnerability Identifiers:

Vulnerability Identifiers Impact of Vulnerability Internet Explorer 5.01 Service Pack 3 and Service Pack 4 Internet Explorer 5.5 Service Pack 2 on Windows ME Internet Explorer 6 Service Pack 1 (All supported operating system versions earlier than Windows Server 2003) Internet Explorer 6 for Windows Server 2003 and Windows Server 2003 Service Pack 1 Internet Explorer 6 for Windows XP Service Pack 2
PNG Image Rendering Memory Corruption Vulnerability - CAN-2005-1211 Remote Code Execution Critical Critical Critical Critical Critical
XML Redirect Information Disclosure Vulnerability - CAN-2002-0648 Information Disclosure Moderate Moderate Moderate Low Moderate
Aggregate Severity of All Vulnerabilities Critical Critical Critical Critical Critical

This assessment is based on the types of systems that are affected by the vulnerability, their typical deployment patterns, and the effect that exploiting the vulnerability would have on them.

Note The severity ratings for non x86 operating system versions map to the x86 operating versions as follows:

  • The Internet Explorer 6 Service Pack 1 for Microsoft Windows XP 64-Bit Edition Service Pack 1 (Itanium) severity rating is the same as the Internet Explorer 6 Service Pack 1 (All supported operating system versions earlier than Windows Server 2003) severity rating.
  • The Internet Explorer 6 for Microsoft Windows XP 64-Bit Edition Version 2003 (Itanium) and Windows XP Professional x64 Edition severity rating is the same as the Internet Explorer 6 for Microsoft Windows XP Service Pack 2 severity rating.
  • The Internet Explorer 6 for Microsoft Windows Server 2003 for Itanium-based Systems and Windows Server 2003 x64 Edition severity rating is the same as the Internet Explorer 6 for Windows Server 2003 severity rating.

Why does this update address several reported security vulnerabilities?
This update contains support for several vulnerabilities because the modifications that are required to address these issues are located in related files. Instead of having to install several updates that are almost the same, customers can install only this update.

What updates does this release replace?
This security update replaces several prior security updates. The most recent security bulletin ID and affected operating systems are listed in the following table.

Bulletin ID Internet Explorer 5.01 Service Pack 3 and Service Pack 4 Internet Explorer 5.5 Service Pack 2 on Windows ME Internet Explorer 6 Service Pack 1 (All versions earlier than Windows Server 2003) Internet Explorer 6 for Windows Server 2003 (including 64-Bit Edition) Internet Explorer 6 for Windows XP Service Pack 2
MS05-020 Replaced Replaced Replaced Replaced Replaced

What are the known issues that customers may experience when they install this security update?
Microsoft Knowledge Base Article 883939 documents the currently known issues that customers may experience when they install this security update. The article also documents recommended solutions for these issues. For more information, see Microsoft Knowledge Base Article 883939.

Known issues since original release of the bulletin:

I have received a hotfix from Microsoft or my support provider since the release of MS04-004. Is that hotfix included in this security update?
Yes. When you install the security update that is intended for systems running Internet Explorer 6 Service Pack 1 on Microsoft Windows 2000 Service Pack 3, on Microsoft Windows 2000 Service Pack 4, or on Microsoft Windows XP Service Pack 1, the installer checks to see if one or more of the files that are being updated on your system have previously been updated by a Microsoft hotfix. However, the installer only detects hotfixes that were released since Microsoft Security Bulletin MS04-038 and Internet Explorer Update Rollup 873377 or Internet Explorer Update Rollup 889669. See Microsoft Knowledge Base Article 883939 for additional information if you have to apply a hotfix that was released before Microsoft Security Bulletin MS04-038 on a system that has the MS05-025 update installed.

For Internet Explorer 6 for Microsoft Windows XP Service Pack 2, Windows Server 2003, and Windows 64-Bit Edition Version 2003 (Itanium), this security update contains hotfixes that were included with or after MS04-025, as well as fixes for all the security issues that are addressed in this update. However, the hotfix versions of the files that were included in this security update are only installed if you have previously installed an Internet Explorer hotfix to update any of the files that are listed in the “Security Update Information” section of this bulletin.

For Internet Explorer 5.01, Internet Explorer 5.5 SP2, and Internet Explorer 6 for Windows XP, the MS05-025 security updates contain hotfixes that were included after MS04-004 up to and including the cumulative updates in MS05-025. The hotfix versions of the files that are included in this security update are installed regardless of whether you have previously installed an Internet Explorer hotfix to update any of the files that are listed in the “Security Update Information” section of this bulletin.

Does this update contain any security-related changes to functionality?
Yes. Besides the changes that are listed in the “Vulnerability Details” section of this bulletin and in addition to changes introduced in previous Internet Explorer Bulletins, this update includes improvements to the Internet Explorer Pop-up Blocker. The Pop-up Blocker was first included in Windows XP Service Pack 2 and is also included in Windows Server 2003 Service Pack 1. For more information about the Pop-up Blocker, see to the product documentation.

The rendering of various image file formats, including GIF and BMP, has been made more robust to help prevent Internet Explorer from closing unexpectedly when it receives an invalidly-formed image.

A change was made to Internet Explorer for Windows XP Service Pack 2 and Windows Server 2003 Service Pack 1 so that it does not render the XBM image file format. This update adds this change to all other supported versions of Internet Explorer. This change has been made to help prevent the Internet Explorer process from closing unexpectedly when users view invalidly-formed images. The XBM format is no longer supported by Internet Explorer.

Additionally, this update sets the kill bit for older versions of the Microsoft DigWebX ActiveX control that is used in MSN. This control implements support for features that are available on the MSN Tech & Gadgets Web site. This includes the View & Organize feature and the Edit & Create feature. This control was also used by MSN Photomail to download photos from MSN. Older versions of this control have been found to contain a security vulnerability. To help protect customers who have this control installed, this update prevents older versions of this control from running in Internet Explorer. It does this by setting the kill bit for the older versions of this control that are no longer supported. For more information about kill bits, see Microsoft Knowledge Base Article 240797. The older class identifiers (CLSIDs) for this ActiveX control are:

  • {FF2BBC4A-6881-4294-BE0C-17535B1FCCFA}
  • {72770C4F-967D-4517-982B-92D6B9015649}
  • {0519F3C1-0ED3-4EF1-98F5-CC3FB10218C7}
  • {05E6787D-82D9-4D24-91DD-97FE8D199501}
  • {13FA0C3E-6B1C-4D8B-88CD-6DA8E1CA7653}

Does this update contain any other changes to functionality?
Yes. Besides the changes that are listed in the “Vulnerability Details” section of this bulletin, also included are non-security-related changes that were introduced in previous Internet Explorer Bulletins.

This update sets the kill bit for the Microsoft MsnPUpld ActiveX control. Internet Explorer no longer supports this control and this update prevents this control from running in Internet Explorer. For more information about kill bits, see Microsoft Knowledge Base Article 240797. The CLSIDs for this ActiveX control are:

  • {C3DFA998-A486-11d4-AA25-00C04F72DAEB}
  • {F107317A-A488-11d4-AA25-00C04F72DAEB}

How does the extended support for Windows 98, Windows 98 Second Edition, and Windows Millennium Edition affect the release of security updates for these operating systems?
Microsoft will only release security updates for critical security issues. Non-critical security issues are not offered during this support period. For more information about the Microsoft Support Lifecycle policies for these operating systems, visit the following Web site.

For more information about severity ratings, visit the following Web site.

Are Windows 98, Windows 98 Second Edition, or Windows Millennium Edition critically affected by one or more of the vulnerabilities that are addressed in this security bulletin?
Yes. Windows 98, Windows 98 Second Edition, and Windows Millennium Edition are critically affected by the vulnerabilities that are addressed in this security bulletin. Critical security updates for these platforms are available, are provided as part of this security bulletin, and can be downloaded only from the Windows Update Web site. For more information about severity ratings, visit the following Web site.

Note Updates for localized versions of Microsoft Windows Millennium Edition that are not supported by Windows Update are available for download at the following download locations:

I am still using Windows XP, but extended security update support ended on September 30th, 2004. What should I do?

The original version of Windows XP, generally known as Windows XP Gold or Windows XP Release to Manufacturing (RTM) version, reached the end of its extended security update support life cycle on September 30, 2004.

It should be a priority for customers who have this operating system version to migrate to supported operating system versions to prevent potential exposure to vulnerabilities. For more information about the Windows Service Pack Product Lifecycle, visit the Microsoft Support Lifecycle Web site. For more information about the Windows Product Lifecycle, visit the Microsoft Support Lifecycle Web site.

For more information, see the Windows Operating System Product Support Lifecycle FAQ.

Extended security update support for Microsoft Windows NT Workstation 4.0 Service Pack 6a and Windows 2000 Service Pack 2 ended on June 30, 2004. Extended security update support for Microsoft Windows NT Server 4.0 Service Pack 6a ended on December 31, 2004. I’m still using one of these operating systems, what should I do?

Windows NT Workstation 4.0 Service Pack 6a, Windows NT Server 4.0 Service Pack 6a, and Windows 2000 Service Pack 2 have reached the end of their life cycles. It should be a priority for customers who have these operating system versions to migrate to supported versions to prevent potential exposure to vulnerabilities. For more information about the Windows Product Lifecycle, visit the following Microsoft Support Lifecycle Web site. For more information about the extended security update support period for these operating system versions, visit the Microsoft Product Support Services Web site.

Customers who require additional support for Windows NT 4.0 SP6a 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, 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 Windows Operating System Product Support Lifecycle FAQ.

Why are the command line installation switches different for Windows 2000 and Windows XP operating systems for this release when compared to MS04-025: Cumulative Security Update for Internet Explorer?
Starting with Microsoft Security Bulletin MS04-038, the packages for Windows 2000 and Windows XP Service Pack 1 use a new installation technology, Update.exe. Therefore, the installation options are different from previous releases. Also, as part of the change to the Update.exe installation technology, the Knowledge Base Article number of this update will no longer be displayed in the About Internet Explorer dialog box in Internet Explorer. For more information about the command line switches that are that are available for this release, see the “Security Update Information” section of this bulletin. For more information about Update.exe, visit the following Microsoft Web site.

Can I use the Microsoft Baseline Security Analyzer (MBSA) to determine whether this update is required?
Yes. MBSA will determine whether this update is required. For more information about MBSA, visit the MBSA Web site.

Note This release includes an update for Internet Explorer 6 Service Pack 1 that is designed for Windows 2000 and Windows XP Service Pack 1. If you are still managing Windows NT 4.0 systems in your enterprise and are using MBSA, a software updates scan will show that this update is applicable on Windows NT 4.0 systems. However, the security update is only intended for the supported operating systems that are mentioned in the “Affected Software” section of this bulletin.

Can I use Systems Management Server (SMS) to determine whether this update is required?
Yes. SMS can help detect and deploy this security update. For information about SMS, visit the SMS Web site.

Note This release includes a package for Internet Explorer 6 Service Pack 1 designed for Windows 2000 and Windows XP Service Pack 1. This package uses the Update.exe installation technology that is discussed in the “Why are the command line installation switches different for Windows 2000 and Windows XP operating systems for this release when compared to MS04-025: Cumulative Security Update for Internet Explorer?” question in the FAQ section of this bulletin. If you are still managing Windows NT 4.0 systems in your enterprise by using SMS, a software updates scan will show that this update as applicable on Windows NT 4.0 systems. However, these packages are designed to only enable installation on the supported operating systems that are mentioned in the “Affected Software” section of this bulletin. For more information, see Microsoft Knowledge Base Article 899950 and the “Extended security update support for Microsoft Windows NT 4.0 Workstation Service Pack 6a and Windows 2000 Service Pack 2 ended on June 30, 2004. Extended security update support for Microsoft Windows NT 4.0 Server Service Pack 6a ended on December 31, 2004. I’m still using one of these operating systems, what should I do?” question in the FAQ section of this bulletin.

Vulnerability Details

PNG Image Rendering Memory Corruption Vulnerability - CAN-2005-1211

A remote code execution vulnerability exists in Internet Explorer because of the way that it handles PNG images. An attacker could exploit the vulnerability by constructing a malicious PNG image that could potentially allow remote code execution if a user visited a malicious Web site or viewed a malicious e-mail message. An attacker who successfully exploited this vulnerability could take complete control of an affected system.

Mitigating Factors for PNG Image Rendering Memory Corruption Vulnerability - CAN-2005-1211:

  • In a Web-based attack scenario, an attacker would have to host a Web site that contains a Web page that is used to exploit this vulnerability. An attacker could also try to compromise a Web site and have it display malicious content. An attacker would have no way to force users to visit a Web site. Instead, an attacker would have to persuade them to visit the Web site, typically by getting them to click a link that takes them to the attacker's site or to a site that has been compromised by the attacker.
  • 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.

Workarounds for PNG Image Rendering Memory Corruption Vulnerability - CAN-2005-1211:

Microsoft has tested the following workarounds. While these workarounds will not correct the underlying vulnerability, they help block known attack vectors. When a workaround reduces functionality, it is identified in the following section.

  • Read e-mail messages in plain text format if you are using Outlook 2002 or a later version, or Outlook Express 6 SP1 or a later version, to help protect yourself from the HTML e-mail attack vector.

    Microsoft Outlook 2002 users who have applied Office XP Service Pack 1 or a later version and Microsoft Outlook Express 6 users who have applied Internet Explorer 6 Service Pack 1 or a later version can enable this setting and view e-mail messages that are not digitally signed or e-mail messages that are not encrypted in plain text only.

    Digitally signed e-mail messages or encrypted e-mail messages are not affected by the setting and may be read in their original formats. For more information about how to enable this setting in Outlook 2002, see Microsoft Knowledge Base Article 307594.

    For information about this setting in Outlook Express 6, see Microsoft Knowledge Base Article 291387.

    Impact of Workaround: E-mail messages that are viewed in plain text format will not contain pictures, specialized fonts, animations, or other rich content. Additionally:

    • The changes are applied to the preview pane and to open messages.
    • Pictures become attachments so that they are not lost.
    • Because the message is still in Rich Text or HTML format in the store, the object model (custom code solutions) may behave unexpectedly.
  • Disable PNG image rendering in Internet Explorer

    To unregister Pngfilt.dll, follow these steps:

    1. Click Start, click Run, type "regsvr32 /u pngfilt.dll" (without the quotation marks), and then click OK.
    2. A dialog box appears to confirm that the unregistration process has succeeded. Click OK to close the dialog box.
    3. Close Internet Explorer, and reopen it for the changes to take effect.

    To re-register Pngfilt.dll, use "regsvr32 pngfilt.dll" (without the quotation marks).

  • Block PNG image rendering in Internet Explorer by using a Software Restriction Policy

    To block PNG image rendering in Internet Explorer you can create a Software Restriction Policy. To create this policy, use a registry script or create a Group Policy setting to block the loading of the Pngfilt.dll.

    Note Using Registry Editor incorrectly can cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk. For information about how to edit the registry, view the "Changing Keys And Values" Help topic in Registry Editor (Regedit.exe) or view the "Add and Delete Information in the Registry" and "Edit Registry Data" Help topics in Regedt32.exe.

    We recommend that you back up the registry before you edit it.

    Use the following .reg file to un-register the PNG image rendering library in Internet Explorer. You can copy the following text, paste it into a text editor such as Notepad, and then save the file with the .reg file name extension.

    [HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Safer\CodeIdentifiers]

    "TransparentEnabled"=dword:00000002 [HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\Safer\CodeIdentifiers\0\Paths\{09687f8a-0ca9-4639-b294-a3f5b2be8fc6}]

    "LastModified"=hex(b):50,09,1f,b1,04,4a,c5,01

    "Description"="Block pngfilt.dll"

    "SaferFlags"=dword:00000000

    "ItemData"=hex(2):25,00,77,00,69,00,6e,00,64,00,69,00,72,00,25,00,5c,00,73,00,\

    79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,70,00,6e,00,67,00,66,00,69,\

    00,6c,00,74,00,2e,00,64,00,6c,00,6c,00,00,00

Impact of Workaround: PNG images are not rendered in Internet Explorer.

FAQ for PNG Image Rendering Memory Corruption Vulnerability - CAN-2005-1211:

What is the scope of the vulnerability?
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.

What causes the vulnerability?
An unchecked buffer in the PNG image rendering library in Internet Explorer.

What is PNG?
PNG stands for Portable Network Graphics. The Portable Network Graphics (PNG) format was designed to replace the older and simpler GIF format and, to some extent, the much more complex TIFF format. For more information about PNG, visit the following Web site.

What might an attacker use the vulnerability to do?
An attacker who successfully exploited this vulnerability could take complete control of the affected system.

How could an attacker exploit the vulnerability?
An attacker could exploit this vulnerability by creating a malicious Web page or an HTML e-mail message and then persuading the user to visit the page or to view the HTML e-mail message. If the user visited the page or viewed the e-mail message, the attacker could access information from other Web sites, could access local files in predetermined locations on the system, or could cause malicious code to run in the security context of the locally logged on user.

What systems are primarily at risk from the vulnerability?
This vulnerability requires that a user is logged on and reading e-mail or visiting Web sites for any malicious action to occur. Therefore, any systems where e-mail is read or where Internet Explorer is used frequently, such as workstations or terminal servers, are at the most risk from this vulnerability. Systems that are not typically used to read e-mail or to visit Web sites, such as most server systems, are at a reduced risk.

What does the update do?
The update removes the vulnerability by modifying the way that Internet Explorer validates the length of a message before it passes the message to the allocated buffer.

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 and had not seen any examples of proof of concept code published when this security bulletin was originally issued.

XML Redirect Information Disclosure Vulnerability - CAN-2002-0648

An information disclosure vulnerability exists in Internet Explorer because of the way that it handles certain requests to display XML content. An attacker could exploit the vulnerability by constructing a malicious Web page that could potentially lead to information disclosure if a user visited a malicious Web site or viewed a malicious e-mail message. An attacker who successfully exploited this vulnerability could read XML data from another Internet Explorer domain. However, user interaction is required to exploit this vulnerability.

Mitigating Factors for XML Redirect Information Disclosure Vulnerability - CAN-2002-0648:

  • In a Web-based attack scenario, an attacker would have to host a Web site that contains a Web page that is used to exploit this vulnerability. An attacker could also try to compromise a Web site and have it display malicious content. An attacker would have no way to force users to visit a Web site. Instead, an attacker would have to persuade them to visit the Web site, typically by getting them to click a link that takes them to the attacker's site or to a site that has been compromised by the attacker.
  • An attacker who successfully exploited this vulnerability could gain access to XML on a system other than that of the attacker’s Web site.
  • By default, Outlook Express 6, Outlook 2002, and Outlook 2003 open HTML e-mail messages in the Restricted sites zone. Additionally, Outlook 2000 opens HTML e-mail messages in the Restricted sites zone if the Outlook E-mail Security Update has been applied. Outlook Express 5.5 Service Pack 2 opens HTML e-mail messages in the Restricted sites zone if Microsoft Security Bulletin MS04-018 has been applied. The Restricted sites zone helps reduce attacks that could try to exploit this vulnerability.
  • The vulnerability could not 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 or click a link in an e-mail message.
  • By default, Internet Explorer on Windows Server 2003 runs in a restricted mode that is known as Enhanced Security Configuration. This mode mitigates this vulnerability. See the FAQ section of this vulnerability for more information about Internet Explorer Enhanced Security Configuration.

The risk of attack from the HTML e-mail vector can be significantly reduced if you meet all the following conditions:

  • Apply the update that is included with Microsoft Security Bulletin MS03-040 or a later Cumulative Security Update for Internet Explorer.
  • Use Microsoft Outlook Express 6 or a later version in its default configuration.
  • Use Microsoft Outlook 2000 Service Pack 2 or a later version in its default configuration.

Workarounds for XML Redirect Information Disclosure Vulnerability - CAN-2002-0648:

Microsoft has tested the following workarounds. While these workarounds will not correct the underlying vulnerability, they help block known attack vectors. When a workaround reduces functionality, it is identified in the following section.

  • Set Internet and Local intranet security zone settings to “High” to prompt before running Active Scripting in these zones.

    You can help protect against this vulnerability by changing your settings for the Internet security zone to prompt before running Active Scripting. You can do this by setting your browser security to High.

    To raise the browsing security level in Microsoft Internet Explorer, follow these steps:

    1. On the Internet Explorer Tools menu, click Internet Options.
    2. In the Internet Options dialog box, click the Security tab, and then click the Internet icon.
    3. Under Security level for this zone, move the slider to High. This sets the security level for all Web sites you visit to High.

    Note If no slider is visible, click Default Level, and then move the slider to High.

    Note Setting the level to High may cause some Web sites to work incorrectly. If you have difficulty using a Web site after you change this setting, and you are sure the site is safe to use, you can add that site to your list of trusted sites. This will allow the site to work correctly even with the high security setting. See the “Restrict Web sites to only your trusted Web sites” workaround for information about how you can add sites to the Trusted sites zone.

    Alternatively, you can change your settings to prompt before running Active Scripting only. To do this, follow these steps:

    1. In Internet Explorer, click Internet Options on the Tools menu.
    2. Click the Security tab.
    3. Click Internet, and then click Custom Level.
    4. Under Settings, in the Scripting section, under Active Scripting, click Prompt, and then click OK.
    5. Click Local intranet, and then click Custom Level.
    6. Under Settings, in the Scripting section, under Active Scripting, click Prompt.
    7. Click OK two times to return to Internet Explorer.

    Impact of Workaround: There are side effects to prompting before running Active Scripting. Many Web sites that are on the Internet or on an intranet use Active Scripting to provide additional functionality. Prompting before running Active Scripting controls is a global setting that affects all Internet and intranet sites. You will be prompted frequently when you enable this workaround. For each prompt, if you feel you trust the site that you are visiting, click Yes to run Active Scripting. If you do not want to be prompted for all these sites, use the "Restrict Web sites to only your trusted Web sites" workaround.

  • Restrict Web sites to only your trusted Web sites.

    After you set Internet Explorer to require a prompt before it runs Active Scripting in the Internet zone and in the Local intranet zone, you can add sites that you trust to Internet Explorer's Trusted sites zone. This will allow you to continue to use trusted Web sites exactly as you do today, while helping to protect you from this attack on untrusted sites. We recommend that you add only sites that you trust to the Trusted sites zone.

    To do this, follow these steps:

    1. In Internet Explorer, click Tools, click Internet Options, and then click the Security tab.
    2. In the Select a Web content zone to specify its current security settings box, click Trusted Sites, and then click Sites.
    3. If you want to add sites that do not require an encrypted channel, click to clear the Require server verification (https:) for all sites in this zone check box.
    4. In the Add this Web site to the zone box, type the URL of a site that you trust, and then click Add.
    5. Repeat these steps for each site that you want to add to the zone.
    6. Click OK two times to accept the changes and return to Internet Explorer.

    Add any sites that you trust not to take malicious action on your computer. One in particular that you may want to add is "*.windowsupdate.microsoft.com" (without the quotation marks). This is the site that will host the update, and it requires an ActiveX control to install the update.

  • Install the update that is described in Microsoft Security Bulletin MS04-018 if you are using Outlook Express 5.5 SP2.

    Outlook Express 5.5 Service Pack 2 opens HTML e-mail messages in the Restricted sites zone if Microsoft Security Bulletin MS04-018 has been installed.

    Customers who use one or more of these products could be at a reduced risk from an e-mail-borne attack that tries to exploit this vulnerability unless the user clicks a malicious link in the e-mail message.

  • Read e-mail messages in plain text format if you are using Outlook 2002 or a later version, or Outlook Express 6 SP1 or a later version, to help protect yourself from the HTML e-mail attack vector.

    Microsoft Outlook 2002 users who have applied Office XP Service Pack 1 or a later version and Microsoft Outlook Express 6 users who have applied Internet Explorer 6 Service Pack 1 or a later version can enable this setting and view e-mail messages that are not digitally signed or e-mail messages that are not encrypted in plain text only.

    Digitally signed e-mail messages or encrypted e-mail messages are not affected by the setting and may be read in their original formats. For more information about how to enable this setting in Outlook 2002, see Microsoft Knowledge Base Article 307594.

    For information about this setting in Outlook Express 6, see Microsoft Knowledge Base Article 291387.

    Impact of Workaround: E-mail messages that are viewed in plain text format will not contain pictures, specialized fonts, animations, or other rich content. Additionally:

    • The changes are applied to the preview pane and to open messages.
    • Pictures become attachments so that they are not lost.
    • Because the message is still in Rich Text or HTML format in the store, the object model (custom code solutions) may behave unexpectedly.

FAQ for XML Redirect Information Disclosure Vulnerability - CAN-2002-0648:

What is the scope of the vulnerability?
An attacker who successfully exploited this vulnerability could gain access to XML on a system other than that of the attacker’s Web site.

What causes the vulnerability?
Internet Explorer does not properly check to make sure that the XML data source is not redirected.

What is XML?
Extensible Markup Language, or XML, is a data format that provides a way for disparate applications to share data. Data for a wide variety of purposes can be stored as XML data and used by other programs. Internet Explorer provides features that allow it to display and use XML data. For more information about XML, visit the following Web site.

What might an attacker use the vulnerability to do?
An attacker who successfully exploited this vulnerability could gain access to XML on a system other than that of the attacker’s Web site.

How could an attacker exploit the vulnerability?
An attacker could exploit this vulnerability by creating a malicious Web page or an HTML e-mail message and then persuading the user to visit the page or to view the HTML e-mail message. If the user visited the page or viewed the e-mail message, the attacker could access local files on the system or could access information from other Web sites on the user’s behalf. The vulnerability could not be exploited automatically through e-mail. For an attack to be successful, a user must click a malicious link that is sent in an e-mail message.

What systems are primarily at risk from the vulnerability?
This vulnerability requires that a user is logged on and reading e-mail or visiting Web sites for any malicious action to occur. Therefore, any systems where e-mail is read or where Internet Explorer is used frequently, such as workstations or terminal servers, are at the most risk from this vulnerability. Systems that are not typically used to read e-mail or to visit Web sites, such as most server systems, are at a reduced risk.

I am running Internet Explorer on Windows Server 2003. Does this mitigate this vulnerability?
Yes. By default, Internet Explorer on Windows Server 2003 runs in a restricted mode that is known as Enhanced Security Configuration. This mode mitigates this vulnerability.

What is Internet Explorer Enhanced Security Configuration?
Internet Explorer Enhanced Security Configuration is a group of preconfigured Internet Explorer settings that reduce the likelihood of a user or of an administrator downloading and running malicious Web content on a server. Internet Explorer Enhanced Security Configuration reduces this risk by modifying many security-related settings. This includes the settings on the Security tab and on the Advanced tab in the Internet Options dialog box. Some of the important modifications include the following:

  • The security level for the Internet zone is set to High. This setting disables scripts, ActiveX controls, Microsoft Java Virtual Machine (MSJVM), and file downloads.
  • Automatic detection of intranet sites is disabled. This setting assigns all intranet Web sites and all Universal Naming Convention (UNC) paths that are not explicitly listed in the Local intranet zone to the Internet zone.
  • Install On Demand and non-Microsoft browser extensions are disabled. This setting prevents Web pages from automatically installing components and prevents non-Microsoft extensions from running.
  • Multimedia content is disabled. This setting prevents music, animations, and video clips from running.

What does the update do?
The update removes the vulnerability by blocking Internet Explorer from receiving redirected data from a domain that is different from the page that hosts a particular XML reference.

When this security bulletin was issued, had this vulnerability been publicly disclosed?
Yes.

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 and had not seen any examples of proof of concept code published when this security bulletin was originally issued.

How does this vulnerability relate to the “XML File Reading via Redirect” vulnerability that is corrected by MS02-047?
This update addresses a newly reported variation of the originally reported vulnerability. This newly-reported variation was not addressed as part of MS02-047. MS02-047 helps protect against the vulnerability that is discussed in that bulletin, but does not address this new variation.

Security Update Information

Affected Software:

For additional information about how to determine which version of Internet Explorer you are running, see Microsoft Knowledge Base Article 164539. For information about the specific security update for your affected software, click the appropriate link:

Internet Explorer 6 for Windows Server 2003 (all versions), Windows XP 64-Bit Edition Version 2003 (Itanium), Microsoft Windows Server 2003 x64 Edition, and for Microsoft Windows XP Professional x64 Edition

Prerequisites
This security update requires Internet Explorer 6 on Windows Server 2003 or Windows Server 2003 Service Pack 1, Windows XP 64-Bit Edition, Version 2003, Microsoft Windows Server 2003 x64 Edition, or on Microsoft Windows XP Professional x64 Edition

Inclusion in Future Service Packs:
The update for this issue will be included in future Service Pack or Update Rollup

Installation Information

This security update supports the following setup switches.

Supported Security Update Installation Switches
Switch Description
/help Displays the command-line options
/passive Unattended Setup mode. No user interaction is required, but installation status is displayed. If a restart is required at the end of Setup, a dialog box will be presented to the user with a timer warning that the computer will restart in 30 seconds.
/quiet Quiet mode. This is the same as unattended mode, but no status or error messages are displayed.
Restart Options
/norestart Does not restart when installation has completed
/forcerestart Restarts the computer after installation and force other applications to close at shutdown without saving open files first.
/warnrestart[:x] Presents a dialog box with a timer warning the user that the computer will restart in x seconds. (The default setting is 30 seconds.) Intended for use with the /quiet switch or the /passive switch.
/promptrestart Display a dialog box prompting the local user to allow a restart
Special Options
/overwriteoem Overwrites OEM files without prompting
/nobackup Does not back up files needed for uninstall
/forceappsclose Forces other programs to close when the computer shuts down
/log:path Allows the redirection of installation log files
/integrate:path Integrates the update into the Windows source files. These files are located at the path that is specified in the switch.
/extract[:path] Extracts files without starting the Setup program
/ER Enables extended error reporting
/verbose Enables verbose logging. During installation, creates %Windir%\CabBuild.log. This log details the files that are copied. Using this switch may cause the installation to proceed more slowly.

Note You can combine these switches into one command. For backward compatibility, the security update also supports many of the setup switches that the earlier version of the Setup program uses. For more information about the supported installation switches, see Microsoft Knowledge Base Article 262841. For more information about the Update.exe installer, visit the Microsoft TechNet Web site.

Deployment Information

To install the security update without any user intervention, use the following command at a command prompt for Windows Server 2003:

Windowsserver2003-kb883939-x86-enu /quiet

Note Use of the /quiet switch will suppress all messages. This includes suppressing failure messages. Administrators should use one of the supported methods to verify the installation was successful when they use the /quiet switch. Administrators should also review the KB883939.log file for any failure messages when they use this switch.

To install the security update without forcing the system to restart, use the following command at a command prompt for Windows Server 2003:

Windowsserver2003-kb883939-x86-enu /norestart

For information about how to deploy this security update by using Software Update Services, visit the Software Update Services Web site.

Restart Requirement

You must restart your system after you apply this security update.

Removal Information

To remove this update, use the Add or Remove Programs tool in Control Panel.

System administrators can also use the Spuninst.exe utility to remove this security update. The Spuninst.exe utility is located in the %Windir%\$NTUninstallKB883939$\Spuninst folder.

Supported Spuninst.exe Switches
Switch Description
/help Displays the command-line options
/passive Unattended Setup mode. No user interaction is required, but installation status is displayed. If a restart is required at the end of Setup, a dialog box will be presented to the user with a timer warning that the computer will restart in 30 seconds.
/quiet Quiet mode. This is the same as unattended mode, but no status or error messages are displayed.
Restart Options
/norestart Does not restart when installation has completed
/forcerestart Restarts the computer after installation and force other applications to close at shutdown without saving open files first.
/warnrestart[:x] Presents a dialog box with a timer warning the user that the computer will restart in x seconds. (The default setting is 30 seconds.) Intended for use with the /quiet switch or the /passive switch.
/promptrestart Display a dialog box prompting the local user to allow a restart
Special Options
/forceappsclose Forces other programs to close when the computer shuts down
/log:path Allows the redirection of installation log files

File Information

The English version of this security update has the file attributes that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

Windows Server 2003, Web Edition; Windows Server 2003, Standard Edition; Windows Server 2003, Datacenter Edition; Windows Server 2003, Enterprise Edition; Windows Small Business Server 2003; Windows Server 2003, Web Edition with SP1; Windows Server 2003, Standard Edition with SP1; Windows Server 2003, Enterprise Edition with SP1; and Windows Server 2003, Datacenter Edition with SP1:

File Name Version Date Time Size Folder
Browseui.dll 6.0.3790.327 07-May-2005 02:09 1,057,792 RTMGDR
Cdfview.dll 6.0.3790.327 07-May-2005 02:09 147,968 RTMGDR
Digest.dll 6.0.3790.327 07-May-2005 02:09 59,904 RTMGDR
Iepeers.dll 6.0.3790.327 07-May-2005 02:09 238,080 RTMGDR
Inseng.dll 6.0.3790.327 07-May-2005 02:09 73,216 RTMGDR
Mshtml.dll 6.0.3790.327 07-May-2005 02:09 2,931,712 RTMGDR
Mshtmled.dll 6.0.3790.327 07-May-2005 02:09 454,144 RTMGDR
Msrating.dll 6.0.3790.327 07-May-2005 02:09 135,680 RTMGDR
Pngfilt.dll 5.2.3790.327 07-May-2005 02:09 40,448 RTMGDR
Shdocvw.dll 6.0.3790.327 07-May-2005 02:09 1,397,248 RTMGDR
Shlwapi.dll 6.0.3790.327 07-May-2005 02:09 287,232 RTMGDR
Urlmon.dll 6.0.3790.327 07-May-2005 02:09 518,656 RTMGDR
Wininet.dll 6.0.3790.327 07-May-2005 02:09 625,664 RTMGDR
Browseui.dll 6.0.3790.327 07-May-2005 02:03 1,058,304 RTMQFE
Cdfview.dll 6.0.3790.327 07-May-2005 02:03 147,456 RTMQFE
Digest.dll 6.0.3790.327 07-May-2005 02:03 59,904 RTMQFE
Iepeers.dll 6.0.3790.327 07-May-2005 02:03 238,592 RTMQFE
Inseng.dll 6.0.3790.327 07-May-2005 02:04 73,216 RTMQFE
Mshtml.dll 6.0.3790.327 07-May-2005 02:04 2,932,224 RTMQFE
Mshtmled.dll 6.0.3790.327 07-May-2005 02:04 454,144 RTMQFE
Msrating.dll 6.0.3790.327 07-May-2005 02:04 135,680 RTMQFE
Pngfilt.dll 5.2.3790.327 07-May-2005 02:04 40,448 RTMQFE
Shdocvw.dll 6.0.3790.327 07-May-2005 02:04 1,398,272 RTMQFE
Shlwapi.dll 6.0.3790.327 07-May-2005 02:04 287,232 RTMQFE
Urlmon.dll 6.0.3790.327 07-May-2005 02:04 518,656 RTMQFE
Wininet.dll 6.0.3790.327 07-May-2005 02:04 627,200 RTMQFE
Iepeers.dll 6.0.3790.2440 07-May-2005 02:19 253,440 SP1GDR
Mshtml.dll 6.0.3790.2440 08-May-2005 18:30 3,108,864 SP1GDR
Pngfilt.dll 5.2.3790.2440 07-May-2005 02:19 42,496 SP1GDR
Shdocvw.dll 6.0.3790.2440 07-May-2005 02:19 1,503,232 SP1GDR
Shlwapi.dll 6.0.3790.2440 07-May-2005 02:19 321,024 SP1GDR
Iepeers.dll 6.0.3790.2440 07-May-2005 02:21 253,440 SP1QFE
Mshtml.dll 6.0.3790.2440 07-May-2005 02:21 3,108,864 SP1QFE
Pngfilt.dll 5.2.3790.2440 07-May-2005 02:21 42,496 SP1QFE
Shdocvw.dll 6.0.3790.2440 07-May-2005 02:21 1,503,232 SP1QFE
Shlwapi.dll 6.0.3790.2440 07-May-2005 02:21 321,024 SP1QFE

Windows Server, 2003 Enterprise Edition for Itanium-based Systems; Windows Server 2003, Datacenter Edition for Itanium-based Systems; Windows Server 2003, Enterprise Edition with SP1 for Itanium-based Systems; Windows Server 2003, Datacenter Edition with SP1 for Itanium-based Systems, and Windows XP 64-Bit Edition Version 2003 (Itanium):

File Name Version Date Time Size CPU Folder
Browseui.dll 6.0.3790.327 08-May-2005 18:36 2,536,960 IA-64 RTMGDR
Cdfview.dll 6.0.3790.327 08-May-2005 18:36 303,616 IA-64 RTMGDR
Digest.dll 6.0.3790.327 08-May-2005 18:36 141,312 IA-64 RTMGDR
Iepeers.dll 6.0.3790.327 08-May-2005 18:36 674,816 IA-64 RTMGDR
Inseng.dll 6.0.3790.327 08-May-2005 18:36 217,600 IA-64 RTMGDR
Mshtml.dll 6.0.3790.327 08-May-2005 18:36 8,231,936 IA-64 RTMGDR
Mshtmled.dll 6.0.3790.327 08-May-2005 18:36 1,409,024 IA-64 RTMGDR
Msrating.dll 6.0.3790.327 08-May-2005 18:36 387,584 IA-64 RTMGDR
Pngfilt.dll 5.2.3790.327 08-May-2005 18:36 105,984 IA-64 RTMGDR
Shdocvw.dll 6.0.3790.327 08-May-2005 18:36 3,369,472 IA-64 RTMGDR
Shlwapi.dll 6.0.3790.327 08-May-2005 18:36 738,816 IA-64 RTMGDR
Urlmon.dll 6.0.3790.327 08-May-2005 18:36 1,289,216 IA-64 RTMGDR
Wininet.dll 6.0.3790.327 08-May-2005 18:36 1,504,768 IA-64 RTMGDR
Wbrowseui.dll 6.0.3790.327 08-May-2005 18:36 1,057,792 x86 RTMGDR\WOW
Wcdfview.dll 6.0.3790.327 08-May-2005 18:36 147,968 x86 RTMGDR\WOW
Wiepeers.dll 6.0.3790.327 08-May-2005 18:36 238,080 x86 RTMGDR\WOW
Winseng.dll 6.0.3790.327 08-May-2005 18:36 73,216 x86 RTMGDR\WOW
Wmshtml.dll 6.0.3790.327 08-May-2005 18:36 2,931,712 x86 RTMGDR\WOW
Wmshtmled.dll 6.0.3790.327 08-May-2005 18:36 454,144 x86 RTMGDR\WOW
Wmsrating.dll 6.0.3790.327 08-May-2005 18:36 135,680 x86 RTMGDR\WOW
Wpngfilt.dll 5.2.3790.327 08-May-2005 18:36 40,448 x86 RTMGDR\WOW
Wshdocvw.dll 6.0.3790.327 08-May-2005 18:36 1,397,248 x86 RTMGDR\WOW
Wshlwapi.dll 6.0.3790.327 08-May-2005 18:36 287,232 x86 RTMGDR\WOW
Wurlmon.dll 6.0.3790.327 08-May-2005 18:36 518,656 x86 RTMGDR\WOW
Wwdigest.dll 6.0.3790.327 08-May-2005 18:36 59,904 x86 RTMGDR\WOW
Wwininet.dll 6.0.3790.327 08-May-2005 18:36 625,664 x86 RTMGDR\WOW
Browseui.dll 6.0.3790.327 08-May-2005 18:37 2,538,496 IA-64 RTMQFE
Cdfview.dll 6.0.3790.327 08-May-2005 18:37 303,616 IA-64 RTMQFE
Digest.dll 6.0.3790.327 08-May-2005 18:37 141,312 IA-64 RTMQFE
Iepeers.dll 6.0.3790.327 08-May-2005 18:37 677,888 IA-64 RTMQFE
Inseng.dll 6.0.3790.327 08-May-2005 18:37 217,600 IA-64 RTMQFE
Mshtml.dll 6.0.3790.327 08-May-2005 18:37 8,233,984 IA-64 RTMQFE
Mshtmled.dll 6.0.3790.327 08-May-2005 18:37 1,409,024 IA-64 RTMQFE
Msrating.dll 6.0.3790.327 08-May-2005 18:37 387,584 IA-64 RTMQFE
Pngfilt.dll 5.2.3790.327 08-May-2005 18:37 105,984 IA-64 RTMQFE
Shdocvw.dll 6.0.3790.327 08-May-2005 18:37 3,373,568 IA-64 RTMQFE
Shlwapi.dll 6.0.3790.327 08-May-2005 18:37 738,816 IA-64 RTMQFE
Urlmon.dll 6.0.3790.327 08-May-2005 18:37 1,289,216 IA-64 RTMQFE
Wininet.dll 6.0.3790.327 08-May-2005 18:37 1,507,840 IA-64 RTMQFE
Wbrowseui.dll 6.0.3790.327 08-May-2005 18:37 1,058,304 x86 RTMQFE\WOW
Wcdfview.dll 6.0.3790.327 08-May-2005 18:37 147,456 x86 RTMQFE\WOW
Wiepeers.dll 6.0.3790.327 08-May-2005 18:37 238,592 x86 RTMQFE\WOW
Winseng.dll 6.0.3790.327 08-May-2005 18:37 73,216 x86 RTMQFE\WOW
Wmshtml.dll 6.0.3790.327 08-May-2005 18:37 2,932,224 x86 RTMQFE\WOW
Wmshtmled.dll 6.0.3790.327 08-May-2005 18:37 454,144 x86 RTMQFE\WOW
Wmsrating.dll 6.0.3790.327 08-May-2005 18:37 135,680 x86 RTMQFE\WOW
Wpngfilt.dll 5.2.3790.327 08-May-2005 18:37 40,448 x86 RTMQFE\WOW
Wshdocvw.dll 6.0.3790.327 08-May-2005 18:37 1,398,272 x86 RTMQFE\WOW
Wshlwapi.dll 6.0.3790.327 08-May-2005 18:37 287,232 x86 RTMQFE\WOW
Wurlmon.dll 6.0.3790.327 08-May-2005 18:37 518,656 x86 RTMQFE\WOW
Wwdigest.dll 6.0.3790.327 08-May-2005 18:37 59,904 x86 RTMQFE\WOW
Wwininet.dll 6.0.3790.327 08-May-2005 18:37 627,200 x86 RTMQFE\WOW
Iepeers.dll 6.0.3790.2440 08-May-2005 18:35 717,824 IA-64 SP1GDR
Mshtml.dll 6.0.3790.2440 08-May-2005 18:35 9,283,072 IA-64 SP1GDR
Pngfilt.dll 5.2.3790.2440 08-May-2005 18:35 116,736 IA-64 SP1GDR
Shdocvw.dll 6.0.3790.2440 08-May-2005 18:35 3,658,752 IA-64 SP1GDR
Shlwapi.dll 6.0.3790.2440 08-May-2005 18:35 823,296 IA-64 SP1GDR
Wiepeers.dll 6.0.3790.2440 08-May-2005 18:35 253,440 x86 SP1GDR\WOW
Wmshtml.dll 6.0.3790.2440 08-May-2005 18:35 3,108,864 x86 SP1GDR\WOW
Wpngfilt.dll 5.2.3790.2440 08-May-2005 18:35 42,496 x86 SP1GDR\WOW
Wshdocvw.dll 6.0.3790.2440 08-May-2005 18:35 1,503,232 x86 SP1GDR\WOW
Wshlwapi.dll 6.0.3790.2440 08-May-2005 18:35 321,024 x86 SP1GDR\WOW
Iepeers.dll 6.0.3790.2440 08-May-2005 18:38 717,824 IA-64 SP1QFE
Mshtml.dll 6.0.3790.2440 08-May-2005 18:38 9,283,072 IA-64 SP1QFE
Pngfilt.dll 5.2.3790.2440 08-May-2005 18:38 116,736 IA-64 SP1QFE
Shdocvw.dll 6.0.3790.2440 08-May-2005 18:38 3,658,752 IA-64 SP1QFE
Shlwapi.dll 6.0.3790.2440 08-May-2005 18:38 823,296 IA-64 SP1QFE
Wiepeers.dll 6.0.3790.2440 08-May-2005 18:38 253,440 x86 SP1QFE\WOW
Wmshtml.dll 6.0.3790.2440 08-May-2005 18:38 3,108,864 x86 SP1QFE\WOW
Wpngfilt.dll 5.2.3790.2440 08-May-2005 18:38 42,496 x86 SP1QFE\WOW
Wshdocvw.dll 6.0.3790.2440 08-May-2005 18:38 1,503,232 x86 SP1QFE\WOW
Wshlwapi.dll 6.0.3790.2440 08-May-2005 18:38 321,024 x86 SP1QFE\WOW

Windows Server 2003, Standard x64 Edition; Windows Server 2003, Enterprise x64 Edition; Windows Server 2003, Datacenter x64 Edition, and Windows XP Professional x64:

File Name Version Date Time Size CPU Folder
Iepeers.dll 6.0.3790.2440 08-May-2005 18:29 369,664 x64 SP1GDR
Mshtml.dll 6.0.3790.2440 08-May-2005 18:29 5,932,544 x64 SP1GDR
Pngfilt.dll 5.2.3790.2440 08-May-2005 18:29 64,000 x64 SP1GDR
Shdocvw.dll 6.0.3790.2440 08-May-2005 18:29 2,417,664 x64 SP1GDR
Shlwapi.dll 6.0.3790.2440 08-May-2005 18:29 621,056 x64 SP1GDR
Wiepeers.dll 6.0.3790.2440 08-May-2005 18:29 253,440 x86 SP1GDR\WOW
Wmshtml.dll 6.0.3790.2440 08-May-2005 18:29 3,108,864 x86 SP1GDR\WOW
Wpngfilt.dll 5.2.3790.2440 08-May-2005 18:29 42,496 x86 SP1GDR\WOW
Wshdocvw.dll 6.0.3790.2440 08-May-2005 18:29 1,503,232 x86 SP1GDR\WOW
Wshlwapi.dll 6.0.3790.2440 08-May-2005 18:29 321,024 x86 SP1GDR\WOW
Iepeers.dll 6.0.3790.2440 08-May-2005 18:29 369,664 x64 SP1QFE
Mshtml.dll 6.0.3790.2440 08-May-2005 18:29 5,932,544 x64 SP1QFE
Pngfilt.dll 5.2.3790.2440 08-May-2005 18:29 64,000 x64 SP1QFE
Shdocvw.dll 6.0.3790.2440 08-May-2005 18:29 2,417,664 x64 SP1QFE
Shlwapi.dll 6.0.3790.2440 08-May-2005 18:29 621,056 x64 SP1QFE
Wiepeers.dll 6.0.3790.2440 08-May-2005 18:29 253,440 x86 SP1QFE\WOW
Wmshtml.dll 6.0.3790.2440 08-May-2005 18:29 3,108,864 x86 SP1QFE\WOW
Wpngfilt.dll 5.2.3790.2440 08-May-2005 18:29 42,496 x86 SP1QFE\WOW
Wshdocvw.dll 6.0.3790.2440 08-May-2005 18:29 1,503,232 x86 SP1QFE\WOW
Wshlwapi.dll 6.0.3790.2440 08-May-2005 18:29 321,024 x86 SP1QFE\WOW

Note When you install this security update on Windows Server 2003, the installer checks to see if one or more of the files that are being updated on your system have previously been updated by a Microsoft hotfix. If you have previously installed a hotfix to update an affected file, the installer copies the RTMQFE files to your system. Otherwise, the installer copies the RTMGDR files to your system.

For more information about this behavior, see Microsoft Knowledge Base Article 824994.

For more information about the Update.exe installer, visit the Microsoft TechNet Web site.

For more information about the terminology that appears in this bulletin, such as hotfix, see Microsoft Knowledge Base Article 824684.

Verifying that the Update Has Been Applied

  • Microsoft Baseline Security Analyzer

To verify that a security update has been applied to an affected system, you may be able to use the Microsoft Baseline Security Analyzer (MBSA) tool. MBSA allows administrators to scan local and remote systems for missing security updates and for common security misconfigurations. For more information about MBSA, visit the Microsoft Baseline Security Analyzer Web site.

  • File Version Verification

Note Because there are several versions of Microsoft Windows, the following steps may be different on your computer. If they are, see your product documentation to complete these steps.

  1. Click Start, and then click Search.
  2. In the Search Results pane, click All files and folders under Search Companion.
  3. In the All or part of the file name box, type a file name from the appropriate file information table, and then click Search.
  4. In the list of files, right-click a file name from the appropriate file information table, and then click Properties.

    Note Depending on the version of the operating system or programs installed, some of the files that are listed in the file information table may not be installed.

  5. On the Version tab, determine the version of the file that is installed on your computer by comparing it to the version that is documented in the appropriate file information table.

    Note Attributes other than the file version may change during installation. Comparing other file attributes to the information in the file information table is not a supported method of verifying that the update has been applied. Also, in certain cases, files may be renamed during installation. If the file or version information is not present, use one of the other available methods to verify update installation.

  • Registry Key Verification

You may also be able to verify the files that this security update has installed by reviewing the following registry key:

For Windows Server 2003, Standard x64 Edition; Windows Server 2003, Enterprise x64 Edition; Windows Server 2003, Datacenter x64 Edition:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Updates\Windows Server 2003\SP2\KB883939\Filelist

For Windows XP Professional x64:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Updates\Windows XP Version 2003\SP2\KB883939\Filelist

Note This registry key may not contain a complete list of installed files. Also, this registry key may not be created correctly if an administrator or an OEM integrates or slipstreams the 883939 security update into the Windows installation source files.

Internet Explorer 6 for Windows XP Service Pack 2

Prerequisites
This update requires Internet Explorer 6 on Windows XP Service Pack 2. For more information, see Microsoft Knowledge Base Article 322389.

Inclusion in Future Service Packs:
The update for this issue will be included in a future Service Pack or Update Rollup.

Installation Information

This security update supports the following setup switches.

Supported Security Update Installation Switches
Switch Description
/help Displays the command-line options
/passive Unattended Setup mode. No user interaction is required, but installation status is displayed. If a restart is required at the end of Setup, a dialog box will be presented to the user with a timer warning that the computer will restart in 30 seconds.
/quiet Quiet mode. This is the same as unattended mode, but no status or error messages are displayed.
Restart Options
/norestart Does not restart when installation has completed
/forcerestart Restarts the computer after installation and force other applications to close at shutdown without saving open files first.
/warnrestart[:x] Presents a dialog box with a timer warning the user that the computer will restart in x seconds. (The default setting is 30 seconds.) Intended for use with the /quiet switch or the /passive switch.
/promptrestart Display a dialog box prompting the local user to allow a restart
Special Options
/overwriteoem Overwrites OEM files without prompting
/nobackup Does not back up files needed for uninstall
/forceappsclose Forces other programs to close when the computer shuts down
/log:path Allows the redirection of installation log files
/integrate:path Integrates the update into the Windows source files. These files are located at the path that is specified in the switch.
/extract[:path] Extracts files without starting the Setup program
/ER Enables extended error reporting
/verbose Enables verbose logging. During installation, creates %Windir%\CabBuild.log. This log details the files that are copied. Using this switch may cause the installation to proceed more slowly.

Note You can combine these switches into one command. For backward compatibility, the security update also supports the setup switches that the earlier version of the Setup program uses. For more information about the supported installation switches, see Microsoft Knowledge Base Article 262841. For more information about the Update.exe installer, visit the Microsoft TechNet Web site.

Deployment Information

To install the security update without any user intervention, use the following command at a command prompt for Microsoft Windows XP Service Pack 2:

Windowsxp-kb883939-x86-enu /quiet

Note Use of the /quiet switch will suppress all messages. This includes suppressing failure messages. Administrators should use one of the supported methods to verify the installation was successful when they use the /quiet switch. Administrators should also review the KB883939.log file for any failure messages when they use this switch.

To install the security update without forcing the system to restart, use the following command at a command prompt for Windows XP Service Pack 2:

Windowsxp-kb883939-x86-enu /norestart

For information about how to deploy this security update by using Software Update Services, visit the Software Update Services Web site.

Restart Requirement

You must restart your system after you apply this security update.

Removal Information

To remove this security update, use the Add or Remove Programs tool in Control Panel.

System administrators can also use the Spuninst.exe utility to remove this security update. The Spuninst.exe utility is located in the %Windir%\$NTUninstallKB883939$\Spuninst folder.

Supported Spuninst.exe Switches
Switch Description
/help Displays the command-line options
/passive Unattended Setup mode. No user interaction is required, but installation status is displayed. If a restart is required at the end of Setup, a dialog box will be presented to the user with a timer warning that the computer will restart in 30 seconds.
/quiet Quiet mode. This is the same as unattended mode, but no status or error messages are displayed.
Restart Options
/norestart Does not restart when installation has completed
/forcerestart Restarts the computer after installation and force other applications to close at shutdown without saving open files first.
/warnrestart[:x] Presents a dialog box with a timer warning the user that the computer will restart in x seconds. (The default setting is 30 seconds.) Intended for use with the /quiet switch or the /passive switch.
/promptrestart Display a dialog box prompting the local user to allow a restart
Special Options
/forceappsclose Forces other programs to close when the computer shuts down
/log:path Allows the redirection of installation log files

File Information

The English version of this security update has the file attributes that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

Internet Explorer 6 for Windows XP Service Pack 2:

File Name Version Date Time Size Folder
Browseui.dll 6.0.2900.2668 02-May-2005 20:52 1,019,904 SP2GDR
Cdfview.dll 6.0.2900.2668 02-May-2005 20:52 151,040 SP2GDR
Iedw.exe 5.1.2600.2668 01-May-2005 00:19 18,432 SP2GDR
Iepeers.dll 6.0.2900.2668 02-May-2005 20:52 250,880 SP2GDR
Inseng.dll 6.0.2900.2668 02-May-2005 20:52 96,256 SP2GDR
Mshtml.dll 6.0.2900.2668 02-May-2005 20:52 3,012,608 SP2GDR
Mshtmled.dll 6.0.2900.2668 02-May-2005 20:52 448,512 SP2GDR
Msrating.dll 6.0.2900.2668 02-May-2005 20:52 146,432 SP2GDR
Pngfilt.dll 6.0.2900.2668 02-May-2005 20:52 39,424 SP2GDR
Shdocvw.dll 6.0.2900.2668 02-May-2005 20:52 1,483,776 SP2GDR
Shlwapi.dll 6.0.2900.2668 02-May-2005 20:52 473,600 SP2GDR
Urlmon.dll 6.0.2900.2668 02-May-2005 20:52 607,744 SP2GDR
Wininet.dll 6.0.2900.2668 02-May-2005 20:52 657,920 SP2GDR
Browseui.dll 6.0.2900.2668 02-May-2005 20:57 1,019,904 SP2QFE
Cdfview.dll 6.0.2900.2668 02-May-2005 20:57 151,040 SP2QFE
Iedw.exe 5.1.2600.2668 01-May-2005 00:12 18,432 SP2QFE
Iepeers.dll 6.0.2900.2668 02-May-2005 20:57 250,880 SP2QFE
Inseng.dll 6.0.2900.2668 02-May-2005 20:57 96,256 SP2QFE
Mshtml.dll 6.0.2900.2668 02-May-2005 20:57 3,014,144 SP2QFE
Mshtmled.dll 6.0.2900.2668 02-May-2005 20:57 448,512 SP2QFE
Msrating.dll 6.0.2900.2668 02-May-2005 20:57 146,432 SP2QFE
Pngfilt.dll 6.0.2900.2668 02-May-2005 20:57 39,424 SP2QFE
Shdocvw.dll 6.0.2900.2668 02-May-2005 20:57 1,484,800 SP2QFE
Shlwapi.dll 6.0.2900.2668 02-May-2005 20:57 473,600 SP2QFE
Urlmon.dll 6.0.2900.2668 02-May-2005 20:57 608,256 SP2QFE
Wininet.dll 6.0.2900.2668 02-May-2005 20:57 658,944 SP2QFE

Note When you install this security update on Windows XP Service Pack 2, the installer checks to see if one or more of the files that are being updated on your system have previously been updated by a Microsoft hotfix. If you have previously installed a hotfix to update an affected file, the installer copies the SP2QFE files to your system. If you have not previously installed a hotfix to update an affected file, the installer copies the SP2GDR files to your system.

For more information about this behavior, see Microsoft Knowledge Base Article 824994.

For more information about the Update.exe installer, visit the Microsoft TechNet Web site.

For more information about the terminology that appears in this bulletin, such as hotfix, see Microsoft Knowledge Base Article 824684.

Verifying that the Update Has Been Applied

  • Microsoft Baseline Security Analyzer

To verify that a security update has been applied to an affected system, you may be able to use the Microsoft Baseline Security Analyzer (MBSA) tool. MBSA allows administrators to scan local and remote systems for missing security updates and for common security misconfigurations. For more information about MBSA, visit the Microsoft Baseline Security Analyzer Web site.

  • File Version Verification

Note Because there are several versions of Microsoft Windows, the following steps may be different on your computer. If they are, see your product documentation to complete these steps.

  1. Click Start, and then click Search.
  2. In the Search Results pane, click All files and folders under Search Companion.
  3. In the All or part of the file name box, type a file name from the appropriate file information table, and then click Search.
  4. In the list of files, right-click a file name from the appropriate file information table, and then click Properties.

    Note Depending on the version of the operating system or programs installed, some of the files that are listed in the file information table may not be installed.

  5. On the Version tab, determine the version of the file that is installed on your computer by comparing it to the version that is documented in the appropriate file information table.

    Note Attributes other than the file version may change during installation. Comparing other file attributes to the information in the file information table is not a supported method of verifying that the update has been applied. Also, in certain cases, files may be renamed during installation. If the file or version information is not present, use one of the other available methods to verify update installation.

  • Registry Key Verification

You may also be able to verify the files that this security update has installed by reviewing the following registry key:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Updates\Windows XP\SP3\KB883939\Filelist

Note These registry keys may not contain a complete list of installed files. Also, these registry keys may not be created correctly if an administrator or an OEM integrates or slipstreams the 883939 security update into the Windows installation source files.

Internet Explorer 6 Service Pack 1 for Windows XP Service Pack 1 and Windows 2000 (all versions)

Note For Windows XP 64-Bit Edition Version 2003 (Itanium), this security update is the same as the Windows Server 2003 for Itanium-based Systems security update.

Prerequisites
To install the Internet Explorer 6 Service Pack 1 (SP1) version of this update, you must be running Internet Explorer 6 SP1 (version 6.00.2800.1106) on one of the following versions of Windows:

  • Microsoft Windows 2000 Service Pack 3 or Windows 2000 Service Pack 4
  • Microsoft Small Business Server 2000 Service Pack 1a (SP1a) or Small Business Server 2000 running with Windows 2000 Server Service Pack 4 (SP4).
  • Microsoft Windows XP Service Pack 1
  • Microsoft Windows XP 64-Bit Edition Service Pack 1 (Itanium)

The software that is listed has been tested to determine whether the versions are affected. Other versions either no longer include security update support or may not be affected. To determine the support life cycle for your product and version, visit the Microsoft Support Lifecycle Web site.

For more information about how to obtain the latest service pack, see Microsoft Knowledge Base Article 260910.

Inclusion in Future Service Packs:
The update for this issue will be included in a future Update Rollup or Service Pack for Windows XP.

Note Windows XP Service Pack 2 is also affected and has a separate security update available with this security bulletin.

Installation Information

This security update supports the following setup switches.

Supported Security Update Installation Switches
Switch Description
/help Displays the command-line options
/passive Unattended Setup mode. No user interaction is required, but installation status is displayed. If a restart is required at the end of Setup, a dialog box will be presented to the user with a timer warning that the computer will restart in 30 seconds.
/quiet Quiet mode. This is the same as unattended mode, but no status or error messages are displayed.
Restart Options
/norestart Does not restart when installation has completed
/forcerestart Restarts the computer after installation and force other applications to close at shutdown without saving open files first.
/warnrestart[:x] Presents a dialog box with a timer warning the user that the computer will restart in x seconds. (The default setting is 30 seconds.) Intended for use with the /quiet switch or the /passive switch.
/promptrestart Display a dialog box prompting the local user to allow a restart
Special Options
/overwriteoem Overwrites OEM files without prompting
/nobackup Does not back up files needed for uninstall
/forceappsclose Forces other programs to close when the computer shuts down
/log:path Allows the redirection of installation log files
/extract[:path] Extracts files without starting the Setup program
/ER Enables extended error reporting
/verbose Enables verbose logging. During installation, creates %Windir%\CabBuild.log. This log details the files that are copied. Using this switch may cause the installation to proceed more slowly.

Note You can combine these switches into one command. For backward compatibility, the security update also supports the setup switches that the earlier version of the Setup program uses. For more information about the supported installation switches, see Microsoft Knowledge Base Article 262841. For more information about the Update.exe installer, visit the Microsoft TechNet Web site. For more information about the terminology that appears in this bulletin, such as hotfix, see Microsoft Knowledge Base Article 824684.

Deployment Information

To install the security update without any user intervention, use the following command at a command prompt for Windows XP Service Pack 1:

IE6.0sp1-KB883939-Windows-2000-XP-x86-enu /quiet

Note Use of the /quiet switch will suppress all messages. This includes suppressing failure messages. Administrators should use one of the supported methods to verify the installation was successful when they use the /quiet switch. Administrators should also review the KB883939.log file for any failure messages when they use this switch.

To install the security update without forcing the system to restart, use the following command at a command prompt for Windows 2000 Service Pack 3 and Windows 2000 Service Pack 4:

IE6.0sp1-KB883939-Windows-2000-XP-x86-enu /norestart

For more information about how to deploy this security update with Software Update Services, visit the Software Update Services Web site.

Restart Requirement

You must restart your system after you apply this security update.

Removal Information

To remove this security update, use the Add or Remove Programs tool in Control Panel.

System administrators can also use the Spuninst.exe utility to remove this security update. The Spuninst.exe utility is located in the %Windir%\$NTUninstallKB883939-IE6SP1-20050428.125228$\Spuninst folder.

Supported Spuninst.exe Switches
Switch Description
/help Displays the command-line options
/passive Unattended Setup mode. No user interaction is required, but installation status is displayed. If a restart is required at the end of Setup, a dialog box will be presented to the user with a timer warning that the computer will restart in 30 seconds.
/quiet Quiet mode. This is the same as unattended mode, but no status or error messages are displayed.
Restart Options
/norestart Does not restart when installation has completed
/forcerestart Restarts the computer after installation and force other applications to close at shutdown without saving open files first.
/warnrestart[:x] Presents a dialog box with a timer warning the user that the computer will restart in x seconds. (The default setting is 30 seconds.) Intended for use with the /quiet switch or the /passive switch.
/promptrestart Display a dialog box prompting the local user to allow a restart
Special Options
/forceappsclose Forces other programs to close when the computer shuts down
/log:path Allows the redirection of installation log files

File Information

The English version of this security update has the file attributes that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

Internet Explorer 6 Service Pack 1 on Windows 2000 Service Pack 3, Windows 2000 Service Pack 4, and Windows XP Service Pack 1:

File Name Version Date Time Size Folder
Browseui.dll 6.0.2800.1622 18-Feb-2005 23:09 1,017,856 RTMGDR
Cdfview.dll 6.0.2800.1612 08-Dec-2004 01:43 143,360 RTMGDR
Iepeers.dll 6.0.2800.1496 18-Feb-2005 20:43 236,032 RTMGDR
Inseng.dll 6.0.2800.1469 26-Aug-2004 17:53 69,632 RTMGDR
Mshtml.dll 6.0.2800.1505 27-Apr-2005 17:52 2,698,752 RTMGDR
Msrating.dll 6.0.2800.1623 24-Feb-2005 19:54 132,096 RTMGDR
Pngfilt.dll 6.0.2800.1505 27-Apr-2005 17:53 34,816 RTMGDR
Shdocvw.dll 6.0.2800.1658 27-Apr-2005 21:50 1,338,368 RTMGDR
Shlwapi.dll 6.0.2800.1612 08-Dec-2004 02:11 402,432 RTMGDR
Urlmon.dll 6.0.2800.1485 08-Dec-2004 00:37 495,104 RTMGDR
Wininet.dll 6.0.2800.1505 27-Apr-2005 17:54 574,976 RTMGDR
Browseui.dll 6.0.2800.1622 18-Feb-2005 23:09 1,017,856 RTMQFE
Cdfview.dll 6.0.2800.1612 08-Dec-2004 01:43 143,360 RTMQFE
Iepeers.dll 6.0.2800.1497 18-Feb-2005 20:44 236,544 RTMQFE
Inseng.dll 6.0.2800.1475 24-Sep-2004 22:07 69,632 RTMQFE
Mshtml.dll 6.0.2800.1506 27-Apr-2005 17:49 2,704,384 RTMQFE
Msrating.dll 6.0.2800.1623 24-Feb-2005 19:54 132,096 RTMQFE
Pngfilt.dll 6.0.2800.1506 27-Apr-2005 17:50 38,912 RTMQFE
Shdocvw.dll 6.0.2800.1658 27-Apr-2005 21:50 1,338,368 RTMQFE
Shlwapi.dll 6.0.2800.1612 08-Dec-2004 02:11 402,432 RTMQFE
Urlmon.dll 6.0.2800.1487 13-Dec-2004 17:39 455,168 RTMQFE
Wininet.dll 6.0.2800.1506 27-Apr-2005 17:51 585,216 RTMQFE

Internet Explorer 6 Service Pack 1 on Windows XP 64-Bit Edition Service Pack 1 (Itanium):

File Name Version Date Time Size CPU Folder
Browseui.dll 6.0.2800.1622 19-Feb-2005 00:13 2,869,760 IA-64 RTMGDR
Cdfview.dll 6.0.2800.1612 08-Dec-2004 01:43 319,488 IA-64 RTMGDR
Iepeers.dll 6.0.2800.1496 18-Feb-2005 21:47 783,872 IA-64 RTMGDR
Inseng.dll 6.0.2800.1469 26-Aug-2004 17:53 230,912 IA-64 RTMGDR
Mshtml.dll 6.0.2800.1505 27-Apr-2005 19:02 9,110,528 IA-64 RTMGDR
Msrating.dll 6.0.2800.1623 24-Feb-2005 19:55 422,912 IA-64 RTMGDR
Pngfilt.dll 6.0.2800.1505 27-Apr-2005 19:01 100,864 IA-64 RTMGDR
Shdocvw.dll 6.0.2800.1658 27-Apr-2005 21:52 3,671,552 IA-64 RTMGDR
Shlwapi.dll 6.0.2800.1612 08-Dec-2004 01:40 1,117,696 IA-64 RTMGDR
Urlmon.dll 6.0.2800.1485 07-Dec-2004 20:46 1,442,816 IA-64 RTMGDR
Wininet.dll 6.0.2800.1505 27-Apr-2005 19:02 1,798,656 IA-64 RTMGDR
Wbrowseui.dll 6.0.2800.1622 18-Feb-2005 23:09 1,017,856 x86 RTMGDR\WOW
Wcdfview.dll 6.0.2800.1612 08-Dec-2004 01:43 143,360 x86 RTMGDR\WOW
Wiepeers.dll 6.0.2800.1496 18-Feb-2005 20:43 236,032 x86 RTMGDR\WOW
Winseng.dll 6.0.2800.1469 26-Aug-2004 17:53 69,632 x86 RTMGDR\WOW
Wmshtml.dll 6.0.2800.1505 27-Apr-2005 17:52 2,698,752 x86 RTMGDR\WOW
Wmsrating.dll 6.0.2800.1623 24-Feb-2005 19:54 132,096 x86 RTMGDR\WOW
Wpngfilt.dll 6.0.2800.1505 27-Apr-2005 17:53 34,816 x86 RTMGDR\WOW
Wshdocvw.dll 6.0.2800.1658 27-Apr-2005 21:50 1,338,368 x86 RTMGDR\WOW
Wshlwapi.dll 6.0.2800.1612 08-Dec-2004 02:11 402,432 x86 RTMGDR\WOW
Wurlmon.dll 6.0.2800.1485 08-Dec-2004 00:37 495,104 x86 RTMGDR\WOW
Wwininet.dll 6.0.2800.1505 27-Apr-2005 17:54 574,976 x86 RTMGDR\WOW
Browseui.dll 6.0.2800.1622 19-Feb-2005 00:13 2,869,760 IA-64 RTMQFE
Cdfview.dll 6.0.2800.1612 08-Dec-2004 01:43 319,488 IA-64 RTMQFE
Iepeers.dll 6.0.2800.1497 18-Feb-2005 21:48 784,384 IA-64 RTMQFE
Inseng.dll 6.0.2800.1475 24-Sep-2004 23:03 230,912 IA-64 RTMQFE
Mshtml.dll 6.0.2800.1506 27-Apr-2005 18:57 9,123,840 IA-64 RTMQFE
Msrating.dll 6.0.2800.1623 24-Feb-2005 19:55 422,912 IA-64 RTMQFE
Pngfilt.dll 6.0.2800.1506 27-Apr-2005 18:56 113,664 IA-64 RTMQFE
Shdocvw.dll 6.0.2800.1658 27-Apr-2005 21:52 3,671,552 IA-64 RTMQFE
Shlwapi.dll 6.0.2800.1612 08-Dec-2004 01:40 1,117,696 IA-64 RTMQFE
Urlmon.dll 6.0.2800.1487 13-Dec-2004 17:40 1,435,648 IA-64 RTMQFE
Wininet.dll 6.0.2800.1506 27-Apr-2005 18:58 1,829,376 IA-64 RTMQFE
Wbrowseui.dll 6.0.2800.1622 18-Feb-2005 23:09 1,017,856 x86 RTMQFE\WOW
Wcdfview.dll 6.0.2800.1612 08-Dec-2004 01:43 143,360 x86 RTMQFE\WOW
Wiepeers.dll 6.0.2800.1497 18-Feb-2005 20:44 236,544 x86 RTMQFE\WOW
Winseng.dll 6.0.2800.1475 24-Sep-2004 22:07 69,632 x86 RTMQFE\WOW
Wmshtml.dll 6.0.2800.1506 27-Apr-2005 17:49 2,704,384 x86 RTMQFE\WOW
Wmsrating.dll 6.0.2800.1623 24-Feb-2005 19:54 132,096 x86 RTMQFE\WOW
Wpngfilt.dll 6.0.2800.1506 27-Apr-2005 17:50 38,912 x86 RTMQFE\WOW
Wshdocvw.dll 6.0.2800.1658 27-Apr-2005 21:50 1,338,368 x86 RTMQFE\WOW
Wshlwapi.dll 6.0.2800.1612 08-Dec-2004 02:11 402,432 x86 RTMQFE\WOW
Wurlmon.dll 6.0.2800.1487 13-Dec-2004 17:39 455,168 x86 RTMQFE\WOW
Wwininet.dll 6.0.2800.1506 27-Apr-2005 17:51 585,216 x86 RTMQFE\WOW

Note When you install this security update on Windows XP Service Pack 1 the installer checks to see if one or more of the files that are being updated on your system have previously been updated by a Microsoft hotfix.

If you have previously installed a hotfix to update an affected file, the installer copies the RTMQFE files to your system.

If you have not previously installed a hotfix to update an affected file, the installer copies the RTMGDR files to your system.

Note For more information, see the “I have received a hotfix from Microsoft or my support provider since the release of MS04-004. Is that hotfix included in this security update?” question in the FAQ section of this bulletin. Also, see Microsoft Knowledge Base Article 883939 for more information if you have to apply a hotfix that was released before Microsoft Security Bulletin MS04-038 on a system that has the MS05-020 update installed.

For more information about the terminology that appears in this bulletin, such as hotfix, see Microsoft Knowledge Base Article 824684.

Verifying that the Update Has Been Applied

  • Microsoft Baseline Security Analyzer

To verify that a security update has been applied to an affected system, you may be able to use the Microsoft Baseline Security Analyzer (MBSA) tool. MBSA allows administrators to scan local and remote systems for missing security updates and for common security misconfigurations. For more information about MBSA, visit the Microsoft Baseline Security Analyzer Web site.

  • File Version Verification

Note Because there are several versions of Microsoft Windows, the following steps may be different on your computer. If they are, see your product documentation to complete these steps.

  1. Click Start, and then click Search.
  2. In the Search Results pane, click All files and folders under Search Companion.
  3. In the All or part of the file name box, type a file name from the appropriate file information table, and then click Search.
  4. In the list of files, right-click a file name from the appropriate file information table, and then click Properties.

    Note Depending on the version of the operating system or programs installed, some of the files that are listed in the file information table may not be installed.

  5. On the Version tab, determine the version of the file that is installed on your computer by comparing it to the version that is documented in the appropriate file information table.

    Note Attributes other than the file version may change during installation. Comparing other file attributes to the information in the file information table is not a supported method of verifying that the update has been applied. Also, in certain cases, files may be renamed during installation. If the file or version information is not present, use one of the other available methods to verify update installation.

  • Registry Key Verification

You may also be able to verify the files that this security update has installed by reviewing the following registry key:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Updates\Internet Explorer 6\SP1\KB883939-IE6SP1-20050428.125228\Filelist

Note This registry key may not contain a complete list of installed files. Also, this registry key may not be created correctly when an administrator or an OEM integrates or slipstreams the 883939 security update into the Windows installation source files.

Internet Explorer 5.01 for Windows 2000 (all versions)

Prerequisites
To install the Internet Explorer 5.01 version of this update, you must be running one of the following combinations of Internet Explorer and Windows 2000:

  • Internet Explorer 5.01 Service Pack 3 (version 5.00.3502.1000) on Windows 2000 Service Pack 3 (SP3)
  • Internet Explorer 5.01 Service Pack 4 (version 5.00.3700.1000) on Windows 2000 Service Pack 4 (SP4)

For Small Business Server 2000, this security update requires Small Business Server 2000 Service Pack 1a (SP1a) or Small Business Server 2000 running with Windows 2000 Server Service Pack 4 (SP4).

Note: Versions of Windows and versions of Internet Explorer that are not listed in this article are no longer supported. Although you can install some of the update packages that are described in this article on these unlisted versions of Windows and of Internet Explorer, Microsoft has not tested them to assess whether they are affected by these vulnerabilities. Microsoft has also not tested these versions to confirm that the update that this bulletin describes addresses these vulnerabilities. We recommend that you upgrade to a supported version of Windows and of Internet Explorer, and then install the appropriate update.

The software that is listed has been tested to determine whether the versions are affected. Other versions either no longer include security update support or may not be affected. To determine the support life cycle for your product and version, visit the Microsoft Support Lifecycle Web site.

For more information about how to obtain the latest service pack, see Microsoft Knowledge Base Article 260910.

Inclusion in Future Service Packs: The update for this issue may be included in a future Update Rollup.

Installation Information

This security update supports the following setup switches.

Supported Security Update Installation Switches
Switch Description
/help Displays the command-line options
/passive Unattended Setup mode. No user interaction is required, but installation status is displayed. If a restart is required at the end of Setup, a dialog box will be presented to the user with a timer warning that the computer will restart in 30 seconds.
/quiet Quiet mode. This is the same as unattended mode, but no status or error messages are displayed.
Restart Options
/norestart Does not restart when installation has completed
/forcerestart Restarts the computer after installation and force other applications to close at shutdown without saving open files first.
/warnrestart[:x] Presents a dialog box with a timer warning the user that the computer will restart in x seconds. (The default setting is 30 seconds.) Intended for use with the /quiet switch or the /passive switch.
/promptrestart Display a dialog box prompting the local user to allow a restart
Special Options
/overwriteoem Overwrites OEM files without prompting
/nobackup Does not back up files needed for uninstall
/forceappsclose Forces other programs to close when the computer shuts down
/log:path Allows the redirection of installation log files
/extract[:path] Extracts files without starting the Setup program
/ER Enables extended error reporting
/verbose Enables verbose logging. During installation, creates %Windir%\CabBuild.log. This log details the files that are copied. Using this switch may cause the installation to proceed more slowly.

Note You can combine these switches into one command. For backward compatibility, the security update also supports the setup switches that the earlier version of the Setup program uses. For more information about the supported installation switches, see Microsoft Knowledge Base Article 262841. For more information about the Update.exe installer, visit the Microsoft TechNet Web site. For more information about the terminology that appears in this bulletin, such as hotfix, see Microsoft Knowledge Base Article 824684.

Deployment Information

To install the security update without any user intervention, use the following command at a command prompt for Windows 2000 Service Pack 3:

IE5.01sp3-KB883939-Windows2000sp3-x86-enu /quiet

Note Use of the /quiet switch will suppress all messages. This includes suppressing failure messages. Administrators should use one of the supported methods to verify the installation was successful when they use the /quiet switch. Administrators should also review the KB883939.log file for any failure messages when they use this switch.

To install the security update without forcing the system to restart, use the following command at a command prompt for Windows 2000 Service Pack 4:

IE5.01sp4-KB883939-Windows2000sp4-x86-enu /norestart

For more information about how to deploy this security update with Software Update Services, visit the Software Update Services Web site.

Restart Requirement

You must restart your system after you apply this security update.

Removal Information

To remove this security update, use the Add or Remove Programs tool in Control Panel.

System administrators can also use the Spuninst.exe utility to remove this security update. The Spuninst.exe utility is located in the %Windir%\$NTUninstallKB883939-ie501sp3-20050427.182635$\Spuninst folder for Windows 2000 SP3 and in the %Windir%\$NTUninstallKB883939-ie501sp4-20050427.182731$\Spuninst folder for Windows 2000 SP4.

Supported Spuninst.exe Switches
Switch Description
/help Displays the command-line options
/passive Unattended Setup mode. No user interaction is required, but installation status is displayed. If a restart is required at the end of Setup, a dialog box will be presented to the user with a timer warning that the computer will restart in 30 seconds.
/quiet Quiet mode. This is the same as unattended mode, but no status or error messages are displayed.
Restart Options
/norestart Does not restart when installation has completed
/forcerestart Restarts the computer after installation and force other applications to close at shutdown without saving open files first.
/warnrestart[:x] Presents a dialog box with a timer warning the user that the computer will restart in x seconds. (The default setting is 30 seconds.) Intended for use with the /quiet switch or the /passive switch.
/promptrestart Display a dialog box prompting the local user to allow a restart
Special Options
/forceappsclose Forces other programs to close when the computer shuts down
/log:path Allows the redirection of installation log files

File Information

The English version of this security update has the file attributes that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

Internet Explorer 5.01 Service Pack 3 on Windows 2000 Service Pack 3:

File Name Version Date Time Size
Browseui.dll 5.0.3537.700 08-Dec-2004 06:28 792,336
Inseng.dll 5.0.3533.2600 26-Aug-2004 18:33 74,000
Mshtml.dll 5.0.3541.2700 27-Apr-2005 18:00 2,298,128
Msrating.dll 5.0.3539.2200 22-Feb-2005 21:01 149,776
Pngfilt.dll 5.0.3541.2700 27-Apr-2005 18:00 48,912
Shdocvw.dll 5.0.3537.700 08-Dec-2004 06:27 1,100,048
Shlwapi.dll 5.0.3900.7033 27-Apr-2005 19:25 283,920
Url.dll 5.50.4952.2700 27-Apr-2005 18:33 84,240
Urlmon.dll 5.0.3537.700 08-Dec-2004 06:33 420,624
Wininet.dll 5.0.3539.1800 18-Feb-2005 21:04 450,832

Internet Explorer 5.01 Service Pack 4 on Windows 2000 Service Pack 4:

File Name Version Date Time Size
Browseui.dll 5.0.3828.2700 27-Apr-2005 18:05 792,848
Inseng.dll 5.0.3828.2700 27-Apr-2005 18:08 74,000
Mshtml.dll 5.0.3828.2700 27-Apr-2005 18:07 2,298,128
Msrating.dll 5.0.3828.2700 27-Apr-2005 18:06 149,776
Pngfilt.dll 5.0.3828.2700 27-Apr-2005 18:07 48,912
Shdocvw.dll 5.0.3828.2700 27-Apr-2005 18:05 1,100,048
Shlwapi.dll 5.0.3900.7033 27-Apr-2005 19:25 283,920
Url.dll 5.50.4952.2700 27-Apr-2005 18:33 84,240
Urlmon.dll 5.0.3828.2700 27-Apr-2005 18:07 420,624
Wininet.dll 5.0.3828.2700 27-Apr-2005 18:07 450,832

Verifying that the Update Has Been Applied

  • Microsoft Baseline Security Analyzer

To verify that a security update has been applied to an affected system, you may be able to use the Microsoft Baseline Security Analyzer (MBSA) tool. MBSA allows administrators to scan local and remote systems for missing security updates and for common security misconfigurations. For more information about MBSA, visit the Microsoft Baseline Security Analyzer Web site.

  • File Version Verification

Note Because there are several versions of Microsoft Windows, the following steps may be different on your computer. If they are, see your product documentation to complete these steps.

  1. Click Start, and then click Search.
  2. In the Search Results pane, click All files and folders under Search Companion.
  3. In the All or part of the file name box, type a file name from the appropriate file information table, and then click Search.
  4. In the list of files, right-click a file name from the appropriate file information table, and then click Properties.

    Note Depending on the version of the operating system or programs installed, some of the files that are listed in the file information table may not be installed.

  5. On the Version tab, determine the version of the file that is installed on your computer by comparing it to the version that is documented in the appropriate file information table.

    Note Attributes other than the file version may change during installation. Comparing other file attributes to the information in the file information table is not a supported method of verifying that the update has been applied. Also, in certain cases, files may be renamed during installation. If the file or version information is not present, use one of the other available methods to verify update installation.

  • Registry Key Verification

You may also be able to verify the files that this security update has installed by reviewing the following registry keys:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Updates\Internet Explorer 5.01\SP3\KB883939-IE501SP3-20050427.182635\Filelist

or

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Updates\Internet Explorer 5.01\SP4\KB883939-IE501SP4-20050427.182731\Filelist

Note These registry keys may not contain a complete list of installed files. Also, this registry key may not be created correctly when an administrator or an OEM integrates or slipstreams the 883939 security update into the Windows installation source files.

Other Information

Acknowledgments

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

Obtaining Other Security Updates:

Updates for other security issues are available at the following locations:

Support:

  • Customers in the U.S. and Canada can receive technical support from Microsoft Product Support Services at 1-866-PCSAFETY. There is no charge for support calls that are associated with security updates.
  • 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.

Security Resources:

Software Update Services:

By using Microsoft Software Update Services (SUS), administrators can quickly and reliably deploy the latest critical updates and security updates to Windows 2000 and Windows Server 2003-based servers, and to desktop systems that are running Windows 2000 Professional or Windows XP Professional.

For more information about how to deploy this security update by using Software Update Services, visit the Software Update Services Web site.

Systems Management Server:

Microsoft Systems Management Server (SMS) delivers a highly-configurable enterprise solution for managing updates. By using SMS, administrators can identify Windows-based systems that require security updates and can perform controlled deployment of these updates throughout the enterprise with minimal disruption to end users. For more information about how administrators can use SMS 2003 to deploy security updates, visit the SMS 2003 Security Patch Management Web site. SMS 2.0 users can also use Software Updates Service Feature Pack to help deploy security updates. For information about SMS, visit the SMS Web site.

Note SMS uses the Microsoft Baseline Security Analyzer, the Microsoft Office Detection Tool, and the Enterprise Update Scanning Tool to provide broad support for security bulletin update detection and deployment. Some software updates may not be detected by these tools. Administrators can use the inventory capabilities of the SMS in these cases to target updates to specific systems. For more information about this procedure, visit the following Web site. Some security updates require administrative rights following a restart of the system. Administrators can use the Elevated Rights Deployment Tool (available in the SMS 2003 Administration Feature Pack and in the SMS 2.0 Administration Feature Pack) to install these updates.

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 (June 14, 2005): Bulletin published
  • V1.1 (June 15, 2005): Bulletin revised to provide clarification around mitigating factors for the PNG Image Rendering Memory Corruption Vulnerability.
  • V1.2 (July 6, 2005): Bulletin revised due to a new issue discovered with the security update: "Microsoft Knowledge Base Article 902395: You receive a HTTP 405 response when you click a hyperlink in Internet Explorer 6 that is in a frame and links to a WebDAV folder. “Security Update Information” section revised with updated details for the Windows XP x64 Professional Edition registry key verification information.

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