Changes in Windows Authenticode Signature Verification - Version: 1.2

Discussion in 'Security Alerts' started by News, Apr 20, 2014.

  1. News

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    Revision Note: V1.2 (February 11, 2014): Rereleased advisory as a reminder to customers that the dormant changes implemented with MS13-098 will be enabled on June 10, 2014. After this date, Windows will no longer recognize non-compliant binaries as signed. See the Recommendation and Suggested Actions sections of this advisory for more information.
    Summary: Microsoft is announcing the availability of an update for all supported releases of Microsoft Windows to change how signatures are verified for binaries signed with the Windows Authenticode signature format. The change is included with Security Bulletin MS13-098, but will not be enabled until June 10, 2014. Once enabled, the new default behavior for Windows Authenticode signature verification will no longer allow extraneous information in the WIN_CERTIFICATE structure. Note that after June 10, 2014, Windows will no longer recognize non-compliant binaries as signed.

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