Microsoft Security Advisory (2728973)

Unauthorized Digital Certificates Could Allow Spoofing

Published: | Updated:

Version: 1.2

General Information

Executive Summary

Microsoft is aware of Microsoft certificate authorities that are outside our recommended secure storage practices. Upon a routine review, we are placing these certificates in the Untrusted Certificate Store, and replacing them with new certificate authorities that meet our high standard of public-key infrastructure (PKI) management. We are unaware of any misuse of the certificate authorities, but are taking pre-emptive action to protect customers. This issue affects all supported releases of Microsoft Windows.

Microsoft is providing an update for all supported releases of Microsoft Windows. The update places the following intermediate CA certificates in the Untrusted Certificate Store:

  • Microsoft Genuine Windows Phone Public Preview CA01
  • Microsoft IPTVe CA
  • Microsoft Online CA001
  • Microsoft Online Svcs BPOS APAC CA1
  • Microsoft Online Svcs BPOS APAC CA2
  • Microsoft Online Svcs BPOS APAC CA3
  • CN=Microsoft Online Svcs BPOS APAC CA4
  • Microsoft Online Svcs BPOS APAC CA5
  • Microsoft Online Svcs BPOS APAC CA6
  • Microsoft Online Svcs BPOS CA1
  • Microsoft Online Svcs BPOS CA2
  • Microsoft Online Svcs BPOS CA2 (2 certificates)
  • Microsoft Online Svcs BPOS EMEA CA1
  • Microsoft Online Svcs BPOS EMEA CA2
  • Microsoft Online Svcs BPOS EMEA CA3
  • Microsoft Online Svcs BPOS EMEA CA4
  • Microsoft Online Svcs BPOS EMEA CA5
  • Microsoft Online Svcs BPOS EMEA CA6
  • Microsoft Online Svcs CA1 (2 certificates)
  • Microsoft Online Svcs CA3 (2 certificates)
  • Microsoft Online Svcs CA4 (2 certificates)
  • Microsoft Online Svcs CA5 (2 certificates)
  • Microsoft Online Svcs CA6

Recommendation. For supported releases of Microsoft Windows, Microsoft recommends that customers apply the update immediately. For more information, see the Suggested Actions section of this advisory.

Known Issues. Microsoft Knowledge Base Article 2728973 documents the currently known issues that customers may experience when installing this update.

Advisory Details

Issue References

For more information about this issue, see the following references:

ReferencesIdentification
Microsoft Knowledge Base Article2728973 

Affected Software and Devices

This advisory discusses the following affected software and devices.

Affected Software
Operating System
Windows XP Service Pack 3
Windows XP Professional x64 Edition Service Pack 2
Windows Server 2003 Service Pack 2
Windows Server 2003 x64 Edition Service Pack 2
Windows Server 2003 with SP2 for Itanium-based Systems
Windows Vista Service Pack 2
Windows Vista x64 Edition Service Pack 2
Windows Server 2008 for 32-bit Systems Service Pack 2
Windows Server 2008 for x64-based Systems Service Pack 2
Windows Server 2008 for Itanium-based Systems Service Pack 2
Windows 7 for 32-bit Systems
Windows 7 for 32-bit Systems Service Pack 1
Windows 7 for x64-based Systems
Windows 7 for x64-based Systems Service Pack 1
Windows Server 2008 R2 for x64-based
Windows Server 2008 R2 for x64-based Systems Service Pack 1
Windows Server 2008 R2 for Itanium-based Systems
Windows Server 2008 R2 for Itanium-based Systems Service Pack 1
Server Core installation option
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)
Windows Server 2008 R2 for x64-based Systems (Server Core installation)
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)

 

Non-Affected Devices
Windows Mobile 6.x
Windows Phone 7
Windows Phone 7.5

Frequently Asked Questions

Suggested Actions

Other Information

Microsoft Active Protections Program (MAPP)

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

Feedback

Support

  • Customers in the United States and Canada can receive technical support from Security Support. For more information about available support options, see Microsoft Help and Support.
  • International customers can receive support from their local Microsoft subsidiaries. For more information about how to contact Microsoft for international support issues, visit International Support.
  • Microsoft TechNet Security provides additional information about security in Microsoft products.

Disclaimer

The information provided in this advisory 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 (July 10, 2012): Advisory published.
  • V1.1 (July 11, 2012): Corrected the disallowed certificate list effective date to "Thursday, June 21, 2012 (or later)" in the FAQ entry, "After applying the update, how can I verify the certificates in the Microsoft Untrusted Certificates Store?"
  • V1.2 (September 5, 2012): Corrected the common name for the "CN=Microsoft Online Svcs BPOS APAC CA4" certificate issued by Microsoft Services PCA.