TechShizz | RDP Error "CredSSP Encryption Oracle Remediation"

RDP Error "CredSSP Encryption Oracle Remediation"

Problem

 Unable to RDP to Machine: CredSSP Encryption Oracle Remediation

Cause

 Windows Update: https://support.microsoft.com/en-gb/help/4093492/credssp-updates-for-cve-2018-0886-march-13-2018

Solution

The fix is to open your local group policy settings and do this.

Computer Configuration -> Administrative Templates -> System -> Credentials Delegation--Encryption Oracle Remediation

enable and set to 'vulnerable'.

If Windows Home edition reg key change...

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\CredSSP\Parameters] "AllowEncryptionOracle"=dword:00000002

I had to create the CredSSP key, then the Parameters key, then the dword value as none of them existed.

Reference, Links and Imges

 https://blogs.technet.microsoft.com/mckittrick/unable-to-rdp-to-virtual-machine-credssp-encryption-oracle-remediation/

https://support.microsoft.com/en-gb/help/4093492/credssp-updates-for-cve-2018-0886-march-13-2018

Add comment