check before: 2023-03-28
Windows Desktop, World tenant
As previously announced, security requirements have increased for Windows devices that use the Distributed Component Object Model (DCOM) or Remote Procedure Call (RPC) server technologies. DCOM clients attempting to establish connections to DCOM servers which have applied updates released June 14, 2022, or later, must support an authentication level of RPC_C_AUTHN_LEVEL_PKT_INTEGRITY and higher.
As of March 14, 2023, it is no longer be possible to bypass authentication level enforcement by creating a registry key in the DCOM server. By this point, you must resolve any compatibility issues with the hardening changes.
For more information, see KB5004442—Manage changes for Windows DCOM Server Security Feature Bypass (CVE-2021-26414).
When will this happen:
March 14, 2023. Updates released on this day and later will have hardening changes enabled by default with no ability to disable them.
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Last updated 7 months ago