windows 2008 R2 sp1 KB for CVE-2021-26414

jun wu 0 Reputation points
2023-08-13T04:23:02.02+00:00

Could any one can tell me which KB of windows server 2008 R2 SP1 can solve Microsoft DCOM Hardening Patch (CVE-2021-26414) issue for OPC communication?

Thanks a lot.

Windows for business | Windows Server | User experience | Other
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  1. Limitless Technology 44,776 Reputation points
    2023-08-15T07:51:27.95+00:00

    Hello there,

    Microsoft has provided some tools to find out if you'll be running into issues before March 14. To test DCOM hardening, you can already enable it in Windows by creating the following registry key.

    KB5004442—Manage changes for Windows DCOM Server Security Feature Bypass (CVE-2021-26414) https://support.microsoft.com/en-us/topic/kb5004442-manage-changes-for-windows-dcom-server-security-feature-bypass-cve-2021-26414-f1400b52-c141-43d2-941e-37ed901c769c

    Path: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Ole\AppCompat

    Value Name: "RequireIntegrityActivationAuthenticationLevel"

    Type: dword

    Value Data: default = 0x00000000 means disabled. 0x00000001 means enabled. If this value is not defined, it will default to disabled.

    Hope this resolves your Query !!

    --If the reply is helpful, please Upvote and Accept it as an answer–

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