[SOLVED] Tomcat strong SSL security

What are ciphers one should specify in Tomcat configuration, apart from

    sslProtocols="TLSv1.2" sslEnabledProtocols="TLSv1.2" SSLEnabled="true"

?

The corresponding document has no recommendations for ciphers. Currently I see the latest Chrome reporting the below problem:

    The connection to this site uses a strong protocol (TLS 1.2), a strong key exchange (ECDHE_RSA with P-256),
    and an obsolete cipher (AES_128_CBC with HMAC-SHA1). 

which means cipher list should be defined. Search over 'Net showed no definite up-to-date recommendations, all I have to do is to try list like

    ciphers="TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,
        TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384,
        TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,TLS_RSA_WITH_AES_128_CBC_SHA256,
        TLS_RSA_WITH_AES_128_CBC_SHA,TLS_RSA_WITH_AES_256_CBC_SHA256,
        TLS_RSA_WITH_AES_256_CBC_SHA"

and experiment with adding/deleting ciphers, but if someone has better ideas, I would be glad to know.

1 answer

1 accepted

This widget could not be displayed.

Hi Konstantin,


You can test your SSL with this tool. You'll get detailed explanations about insecure things in your SSL setup. After you correct them you should do SSL quality checks on a regular basis to maintain your SSL secure.

The site is private and can't be checked directly (not allowed to do port forwarding to it); however, I tested A+ graded site and got the list of ciphers from the output.

Thanks, the answer is, as usually, obvious.

 

Suggest an answer

Log in or Sign up to answer
Community showcase
Posted Sep 17, 2018 in Confluence

Why start from scratch? Introducing four new templates for Confluence Cloud

Hi my Community friends!  For those who don't know me, I'm a product marketer on the Confluence Cloud team - nice to meet you! For those of you who do, you know that I've been all up in your Co...

610 views 8 6
Join discussion

Atlassian User Groups

Connect with like-minded Atlassian users at free events near you!

Find a group

Connect with like-minded Atlassian users at free events near you!

Find my local user group

Unfortunately there are no AUG chapters near you at the moment.

Start an AUG

You're one step closer to meeting fellow Atlassian users at your local meet up. Learn more about AUGs

Groups near you