It's not the same without you

Join the community to find out what other Atlassian users are discussing, debating and creating.

Atlassian Community Hero Image Collage

[SOLVED] Tomcat strong SSL security

Konstantin Boyandin Dec 08, 2016

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

1 vote
Answer accepted
Roman Kirilenko Dec 08, 2016

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.

Konstantin Boyandin Dec 09, 2016

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
This widget could not be displayed.
This widget could not be displayed.
Community showcase
Published in Confluence

6 Awesome Ways to Apply Trello, JIRA and Confluence to your Project

I attended  Atlassian Summit 2019  and learned a lot from the presenters, attendees and knowledgeable Atlassian product managers. The presentations I attended focused on applying Agile, pla...

935 views 7 17
Read article

Community Events

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

Find an event

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

Unfortunately there are no Community Events near you at the moment.

Host an event

You're one step closer to meeting fellow Atlassian users at your local event. Learn more about Community Events

Events near you