11-23-2022, 06:30 PM
I was just able to get an A+ rating on SSLLabs with my Sectigo cert but I am using http.sys not SA. If you search this forum for 'cipher' there may be some settings that will get you to A+.
For anyone using http.sys I disabled RC4, TLS1.0, and TLS1.1 to get the good rating using these PowerShell commands:
For anyone using http.sys I disabled RC4, TLS1.0, and TLS1.1 to get the good rating using these PowerShell commands:
Code:
Disable-TlsCipherSuite -Name "TLS_RSA_WITH_RC4_128_SHA"
Disable-TlsCipherSuite -Name "TLS_RSA_WITH_RC4_128_MD5"
New-Item 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.0\Server' -Force
New-ItemProperty -Path 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.0\Server' –PropertyType 'DWORD' -Name 'Enabled' -Value '0'
New-ItemProperty -Path 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.0\Server' –PropertyType 'DWORD' -Name 'DisabledByDefault' -Value '1'
New-Item 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.0\Client' -Force
New-ItemProperty -Path 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.0\Client' -PropertyType 'DWORD' -Name 'Enabled' -Value '0'
New-ItemProperty -Path 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.0\Client' –PropertyType 'DWORD' -Name 'DisabledByDefault' -Value '1'
New-Item 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.1\Server' -Force
New-ItemProperty -Path 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.1\Server' –PropertyType 'DWORD' -Name 'Enabled' -Value '0'
New-ItemProperty -Path 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.1\Server' –PropertyType 'DWORD' -Name 'DisabledByDefault' -Value '1'
New-Item 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.1\Client' -Force
New-ItemProperty -Path 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.1\Client' -PropertyType 'DWORD' -Name 'Enabled' -Value '0'
New-ItemProperty -Path 'HKLM:\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.1\Client' –PropertyType 'DWORD' -Name 'DisabledByDefault' -Value '1'