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How would I disable PCT 1.0, SSL 2.0, SSL 3.0, or TLS 1.0 in Internet Information Services?

A Security Scan found that one of our boxes that is running Windows Server 2003 SP2  has the following vulnerability-

SSL Server Allows Anonymous Authentication Vulnerability

Suggested solution: disable PCT 1.0, SSL 2.0, SSL 3.0, or TLS 1.0 in Internet Information Services.

What is the best way to accomplish this in Windows Server 2003?

Thanks
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David Paris Vicente
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Thanks. Will test tomorrow AM and let you know.
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David Paris Vicente

I applied your suggested setting to the registry.
Is there a way to test  whether   "SSL Server Allows Anonymous Authentication Vulnerability"  has been addressed without
asking our University to run another security scan?

Thanks
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Thanks.
Please clarify - In your first post you said Dword value should = enabled

In your second post you said Dword should =  0   and   0  = disabled.
Sorry for not being clear.

I wanted to say that in the Value Name for the DWORD properties it is indeed Enabled and in the Value Data you should choose the Hexadecimal Base and insert the value 0.
This value has its equivalent in Binary to 00000000.

In binary 0 equals Disabled and opposite is 1, meaning Enabled.

As you want to disable it you should set the Value Data to 0. But if in the future you want to enable it, you have to change Value Data to 1.
See Example Attached. User generated image

And in my second post I mentioned other Key Regs that you need to change in case your security scan detects any vulnerability with the protocols mentioned on your question. "PCT 1.0, SSL 2.0, SSL 3.0, or TLS 1.0"



I hope it helps.
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ASKER

Thanks for clarifying. Will not be able to get to this until Monday AM. At that time will test and give you the points.
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ASKER

Thanks for your help.