Link to home
Start Free TrialLog in
Avatar of r4kieta
r4kieta

asked on

Google Chrome o SSLVersionMin no longer supported? Why? how to enforce TLS 1.1 and up only.

Hey,

Wandering why these two features were removed from chrome deployments.
I am trying to set the minimum level of TLS to v1.1 due to security reasons.

We have tried several methods but none of them work.
- using policy adm adml file from the download package. https://support.google.com/chrome/a/answer/187202#windows with https://dl.google.com/dl/edgedl/chrome/policy/policy_templates.zip using
SSLVersionMin and SSLVersionFallbackMin.

- using –ssl-version-min=tls1.1 - i am assuming that this setting does what above does.

- we ultimatelly tried forcing OS setting via registry, but chrome still used TLS 1.0 once run against https://www.ssllabs.com/ssltest/viewMyClient.html
REG ADD "HKLM\System\CurrentControlSet\Control\SecurityProviders\SChannel\Protocols\TLS 1.0\Server" /v Enabled /t REG_DWORD /d 0 /f
REG ADD "HKLM\System\CurrentControlSet\Control\SecurityProviders\SChannel\Protocols\TLS 1.0\Client" /v Enabled /t REG_DWORD /d 0 /f
REG ADD "HKLM\System\CurrentControlSet\Control\SecurityProviders\SChannel\Protocols\TLS 1.0\Server" /v DisabledByDefault /t REG_DWORD /d 1 /f
REG ADD "HKLM\System\CurrentControlSet\Control\SecurityProviders\SChannel\Protocols\TLS 1.0\Client" /v DisabledByDefault /t REG_DWORD /d 1 /f

Any other ways?

Thanks
Chris
ASKER CERTIFIED SOLUTION
Avatar of btan
btan

Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial
Avatar of btan
btan

As per advised.