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Enable Disable TLS
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| ###Test | |
| (New-Object System.Net.WebClient).DownloadString("https://www.google.com") | |
| ###View configured protocols | |
| dir 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols' -Recurse | |
| ###Disable TLS1.0 | |
| New-Item 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.0\Server' -Force | Out-Null | |
| New-ItemProperty -path 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.0\Server' -name 'Enabled' -value '0' -PropertyType 'DWord' -Force | Out-Null | |
| New-ItemProperty -path 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.0\Server' -name 'DisabledByDefault' -value 1 -PropertyType 'DWord' -Force | Out-Null | |
| New-Item 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.0\Client' -Force | Out-Null | |
| New-ItemProperty -path 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.0\Client' -name 'Enabled' -value '0' -PropertyType 'DWord' -Force | Out-Null | |
| New-ItemProperty -path 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.0\Client' -name 'DisabledByDefault' -value 1 -PropertyType 'DWord' -Force | Out-Null | |
| ###Disable TLS1.1 | |
| New-Item 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.1\Server' -Force | Out-Null | |
| New-ItemProperty -path 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.1\Server' -name 'Enabled' -value '0' -PropertyType 'DWord' -Force | Out-Null | |
| New-ItemProperty -path 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.1\Server' -name 'DisabledByDefault' -value 1 -PropertyType 'DWord' -Force | Out-Null | |
| New-Item 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.1\Client' -Force | Out-Null | |
| New-ItemProperty -path 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.1\Client' -name 'Enabled' -value '0' -PropertyType 'DWord' -Force | Out-Null | |
| New-ItemProperty -path 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.1\Client' -name 'DisabledByDefault' -value 1 -PropertyType 'DWord' -Force | Out-Null | |
| ###Enable TLS1.2 | |
| New-Item 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2\Server' -Force | Out-Null | |
| New-ItemProperty -path 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2\Server' -name 'Enabled' -value '1' -PropertyType 'DWord' -Force | Out-Null | |
| New-ItemProperty -path 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2\Server' -name 'DisabledByDefault' -value 0 -PropertyType 'DWord' -Force | Out-Null | |
| New-Item 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2\Client' -Force | Out-Null | |
| New-ItemProperty -path 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2\Client' -name 'Enabled' -value '1' -PropertyType 'DWord' -Force | Out-Null | |
| New-ItemProperty -path 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2\Client' -name 'DisabledByDefault' -value 0 -PropertyType 'DWord' -Force | Out-Null | |
| ### View .NET defaults | |
| Get-ItemProperty 'HKLM:\SOFTWARE\Microsoft\.NETFramework\v2.0.50727' -name SystemDefaultTlsVersions | |
| Get-ItemProperty 'HKLM:\SOFTWARE\Wow6432Node\Microsoft\.NETFramework\v2.0.50727' -name SystemDefaultTlsVersions | |
| dir 'HKLM:\SOFTWARE\Microsoft\.NETFramework' | |
| dir 'HKLM:\SOFTWARE\Wow6432Node\Microsoft\.NETFramework' | |
| [Net.ServicePointManager]::SecurityProtocol | |
| ### Update .NET defaults | |
| $RegPath = "HKLM:\SOFTWARE\Microsoft\.NETFramework\v2.0.50727" | |
| New-ItemProperty -path $RegPath -name SystemDefaultTlsVersions -value 1 -PropertyType DWORD | |
| New-ItemProperty -path $RegPath -name SchUseStrongCrypto -value 1 -PropertyType DWORD | |
| $RegPath = "HKLM:\SOFTWARE\WOW6432Node\Microsoft\.NETFramework\v2.0.50727" | |
| New-ItemProperty -path $RegPath -name SystemDefaultTlsVersions -value 1 -PropertyType DWORD | |
| New-ItemProperty -path $RegPath -name SchUseStrongCrypto -value 1 -PropertyType DWORD | |
| $RegPath = "HKLM:\SOFTWARE\Microsoft\.NETFramework\v4.0.30319" | |
| New-ItemProperty -path $RegPath -name SystemDefaultTlsVersions -value 1 -PropertyType DWORD | |
| New-ItemProperty -path $RegPath -name SchUseStrongCrypto -value 1 -PropertyType DWORD | |
| $RegPath = "HKLM:\SOFTWARE\WOW6432Node\Microsoft\.NETFramework\v4.0.30319" | |
| New-ItemProperty -path $RegPath -name SystemDefaultTlsVersions -value 1 -PropertyType DWORD | |
| New-ItemProperty -path $RegPath -name SchUseStrongCrypto -value 1 -PropertyType DWORD | |
| ### Update WinHttp | |
| $RegPath = "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\WinHttp" | |
| New-Item -path $RegPath | |
| New-ItemProperty -path $RegPath -name DefaultSecureProtocols -value 0xAA0 -PropertyType DWORD | |
| # Set-ItemProperty -path $RegPath -name DefaultSecureProtocols -value 0x800 | |
| $RegPath = "HKLM:\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Internet Settings\WinHttp" | |
| New-Item -path $RegPath | |
| New-ItemProperty -path $RegPath -name DefaultSecureProtocols -value 0xAA0 -PropertyType DWORD | |
| # Set-ItemProperty -path $RegPath -name DefaultSecureProtocols -value 0x800 | |
| ###Reference | |
| # https://learn.microsoft.com/en-us/mem/configmgr/core/plan-design/security/enable-tls-1-2-client |
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