How to Disable SSLv3 for Exim and Protect Your WHM/cPanel Server from POODLE

There’s a new POODLE in town, but unfortunately it’s not the kind of pooch you want around. POODLE stands for Padding Oracle ODowngraded Legacy Encryption. It’s an exploit that, although not considered to be as serious as Heartbleed, is one that should still be protected against. For more information read the Google Blog.

Fortunately, protecting your WHM/cPanel server is easy. Just follow the steps below:

Step 1: Navigate to the Include Editor

Shortcut:


WHM => Service Configuration => Exim Configuration Manager => Advanced Editor


Details:


First login to WHM and use the search functionality to search for Exim.

Then click on Exim Configuration Manager:

How to Disable SSLv3 for Exim and Protect Your WHMcPanel Server from POODLE


Next click on the Advanced Editor tab:


How to Disable SSLv3 for Exim and Protect Your WHMcPanel Server from POODLE


Step 2: Edit the Includes


Shortcut:


Add additional configuration setting => add “openssl_options” and “+no_sslv3″ => Save


Details:

Find the SECTION: Config and then scroll to the end of that section looking for the Add additional configuration setting button.


How to Disable SSLv3 for Exim and Protect Your WHMcPanel Server from POODLE


In the first blank box add:

openssl_options


In the second blank box add:

+no_sslv3


How to Disable SSLv3 for Exim and Protect Your WHMcPanel Server from POODLE


The scroll down to the very bottom of the page and click the Save button.

How to Disable SSLv3 for Exim and Protect Your WHMcPanel Server from POODLE

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