How to solve CredSSP Encryption error when trying RDP

Question

I get this error when I connect with RDP This could be due to CredSSP encryption oracle remediation.

For more information, see https://go.microsoft.com/fwlink/?linkid=866660

How to solve it ?

score 15 · Accepted Answer · answered May 14 '18 at 10:23

15

Microsoft made this bad change but I will solve it for you :-) Run cmd as Administrator (Search for cmd and right click with the mouse to choose RUN AS ADMINISTRATOR).

You can also use powershell admin. Copy and paste this command to run it and rate my answer if succeed :-)

REG ADD HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System\CredSSP\Parameters\ /v AllowEncryptionOracle /t REG_DWORD /d 2

answered May 14 '18 at 10:23

Asi

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I am glad to help! – Asi May 14 '18 at 13:41
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@Asi please make a note that the registry change will now make your machine vulnerable when connecting to unpatched servers. The _real_ fix is to patch the server you're trying to connect to via RDP. – Alex Wiese May 17 '18 at 00:19
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Worked for me as well.. Thnx – CompG33k Jun 15 '18 at 00:58
1

This is the best solution which requires less actions. – Julian Paolo Dayag Oct 05 '18 at 07:00

score -1 · Answer 2 · answered Oct 09 '18 at 01:43

create a text file: rd_patch.reg

Paste following content, save and double-click it.

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\CredSSP]

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

Solution from: https://serverfault.com/a/911645

How to solve CredSSP Encryption error when trying RDP

2 Answers2