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Cipher Rules And Groups in BIG-IP v13

My mother used to always tell me two things before I left for school in the morning. Be wary of what ciphers your application supports Never use the Default cipher list unless you have compatibi...
Updated Jun 06, 2023
Version 2.0
application delivery
BIG-IP
ciphersuites
dcsecurity17
LTM
security
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Chase_Abbott
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Chase_Abbott
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Apr 25, 2018

Running v13.1.0.3.0.0.5 I created a benoit-test cipher group, benoit-test ssl profile, for my benoit-virtual. Changing cipher rules in the group did apply the update directly. I started with the default string and then restricted the group to ECC only. The change did update without having to mess with the SSL profile.

Second test was only updating the rule string. I created a benoit-test for a rule and used the

ECDHE:ECDHE_ECDSA
string. I got back 13 ciphers. I then added !TLSv1 and !TLSv1_1 to the rule list ONLY, no update to the cipher group. The updated rule list DID change the returned cipher list, narrowed down to 6 cipher.

I am using the article's nmap ssl-enum-cipher script to verify change.

What version are you on?

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