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Security update for the Kerberos SNAME security feature bypass vulnerability in Windows Server 2008: July 11, 2017

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Summary

A security feature bypass vulnerability exists in Microsoft Windows when Kerberos fails to prevent tampering with the SNAME field during ticket exchange. An attacker who successfully exploited this vulnerability could use it to bypass Extended Protection for Authentication.

To learn more about the vulnerability, go to CVE-2017-8495.

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More Information

Important
 
  • If you install a language pack after you install this update, you must reinstall this update. Therefore, we recommend that you install any language packs that you need before you install this update. For more information, see Add language packs to Windows.

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How to obtain and install the update

Method 1: Windows Update

This update is available through Windows Update. When you turn on automatic updating, this update will be downloaded and installed automatically. For more information about how to turn on automatic updating, see Windows Update: FAQ.

Method 2: Microsoft Update Catalog

To get the stand-alone package for this update, go to the Microsoft Update Catalog website.

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Deployment information

For deployment details for this security update, see the following article in the Microsoft Knowledge Base:

Security update deployment information: July 11, 2017

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More Information

How to obtain help and support for this security update
Help for installing updates: Windows Update: FAQ

Security solutions for IT professionals: TechNet Security Support and Troubleshooting

Help for protecting your Windows-based computer from viruses and malware: Microsoft Secure

Local support according to your country: International Support

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File Information

File hash information
File name SHA1 hash SHA256 hash
Windows6.0-KB4022746-ia64.msu 44793C0AEA6851D6E2511F096BF6F777BE01C5A2 09AD0ACE3D72B4E605FDB19143DEC8DA0AA6E050B6D141C7CD108B9BA569893A
Windows6.0-KB4022746-x64.msu FD952A1CA1643A04F2BD8B3AA678E703E108C0E4 063782079C02278C4D65DCB18D606D3A8A766BF67EA6E027E3F0D7F71DE25DBF

File information

The English (United States) version of this software update installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight-saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.

Windows Server 2008 file information

For all supported ia64-based versions
File name File version File size Date Time Platform
Kerberos.dll 6.0.6002.19810 1,403,392 11-Jun-2017 22:20 IA-64
Kerberos.dll 6.0.6002.24130 1,413,120 11-Jun-2017 21:47 IA-64
Kerberos.dll 6.0.6002.19810 502,784 11-Jun-2017 22:31 x86
Kerberos.dll 6.0.6002.24130 505,856 11-Jun-2017 21:52 x86
For all supported x64-based versions
File name File version File size Date Time Platform
Kerberos.dll 6.0.6002.19810 661,504 11-Jun-2017 22:48 x64
Kerberos.dll 6.0.6002.24130 666,624 11-Jun-2017 22:09 x64
Kerberos.dll 6.0.6002.19810 502,784 11-Jun-2017 22:31 x86
Kerberos.dll 6.0.6002.24130 505,856 11-Jun-2017 21:52 x86
For all supported x86-based versions
File name File version File size Date Time Platform
Kerberos.dll 6.0.6002.19810 502,784 11-Jun-2017 22:31 x86
Kerberos.dll 6.0.6002.24130 505,856 11-Jun-2017 21:52 x86

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Keywords: kb, atdownload, kbbug, kbexpertiseinter, kbfix, kblangall, kbmustloc, kbsecbulletin, kbsecreview, kbsecurity, kbsecvulnerability, kbsurveynew

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Article Info
Article ID : 4022746
Revision : 11
Created on : 7/6/2017
Published on : 7/11/2017
Exists online : False
Views : 222