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What is the reason for the authentication error when connecting to the CVM? I believe that many inexperienced people are at a loss about this, so this article summarizes the causes and solutions of the problem. Through this article, I hope you can solve this problem.

Sometimes, when you connect to a remote cloud server, "there is an authentication error and the required function is not supported. This may be due to the CredSSP encryption Oracle correction". The access to the address is found to be insecure, so Microsoft needs to update it.

Credential Security support provider Protocol (CredSSP) is an authentication provider that handles authentication requests from other applications.

A remote code execution vulnerability exists in the unpatched version of CredSSP. An attacker who successfully exploits this vulnerability can relay user credentials on the target system to execute code. Any application that relies on CredSSP for authentication may be vulnerable to such attacks. This security update fixes this vulnerability by correcting the way CredSSP validates requests during authentication.

Here we take the win10 system as an example. Other versions should be modified on your own.

1. Run gpedit.msc to open the Local Group Policy Editor and open the following interface.

two。 Expand computer configuration-> Administrative templates-> system-> credential assignment setting name: encryption Oracle Correction

3. Then right-click to edit, change to enable, and the level is vulnerable. Make a remote connection and find that the remote is successful. Then slowly adjust it as needed.

In some Windows versions, expand "computer configuration"-> "Administrative templates"-> "system"-> "credential assignment" setting name: encrypt Oracle modified registry value is 2 (if you can not find the above method to change the registry value, because different versions of Windows operation is different, but more or less the same. Note that the Windows version here refers to the client, not the server.

After reading the above, have you mastered the reason for the authentication error when connecting to the cloud server? If you want to learn more skills or want to know more about it, you are welcome to follow the industry information channel, thank you for reading!

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