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Mitigation consists of installing the update on all eligible client and server operating systems and then using included Group Policy settings or registry-based equivalents to manage the setting options on the client and server computers. The initial March 13, 2018, release updates the CredSSP authentication protocol and the Remote Desktop clients for all affected platforms. To learn more about the vulnerability, see CVE-2018-0886.

This security update addresses the vulnerability by correcting how CredSSP validates requests during the authentication process. Any application that depends on CredSSP for authentication may be vulnerable to this type of attack. An attacker who successfully exploits this vulnerability could relay user credentials to execute code on the target system. LessĬredential Security Support Provider protocol (CredSSP) is an authentication provider that processes authentication requests for other applications.Ī remote code execution vulnerability exists in unpatched versions of CredSSP. Windows Server 2016, all editions Windows Server 2012 R2 Standard Windows Server 2012 Standard Windows 8.1 Windows 10 Windows 7 Windows 10, version 1511, all editions Windows 10, version 1607, all editions Windows 10, version 1703, all editions Windows 10, version 1709, all editions Windows Server 2016 Windows Server 2008 R2 Standard Windows Server 2008 Foundation Windows Server 2008 Enterprise without Hyper-V Windows Server 2008 Service Pack 2 Windows Server 2008 Datacenter Windows Server 2008 for Itanium-Based Systems Windows Server 2008 Datacenter without Hyper-V Windows Server 2008 Enterprise Windows Server 2016 Standard Windows Server 2016 Essentials Windows Server 2016 Windows Server version 1709 Windows Server version 1803 Windows Vista Service Pack 2 Windows Server 2008 R2 Enterprise Windows Server 2008 R2 Datacenter Windows Server 2008 R2 Web Edition Windows 7 Enterprise Windows 7 Ultimate Windows 7 Starter Windows 7 Home Premium Windows 7 Professional Windows 7 Home Basic Windows Server 2008 R2 Foundation Windows Server 2008 R2 Service Pack 1 Windows 7 Service Pack 1 Windows Server 2012 Essentials Windows Server 2012 Datacenter Windows Server 2012 Foundation Windows Server 2012 R2 Datacenter Windows Server 2012 R2 Essentials Windows RT 8.1 Windows Server 2012 R2 Foundation Windows 8.1 Pro Windows 8.1 Enterprise Windows Server 2008 Web Edition Windows Server 2008 Standard More.