09-08-2023 06:46 AM - edited 09-08-2023 06:47 AM
~ $ sudo nmap --script ssl-enum-ciphers -p 443 dlsisep001.humana.com
Starting Nmap 6.40 ( http://nmap.org ) at 2023-09-08 08:13 EDT
Nmap scan report for dlsisep001.humana.com (8.8.8.8)
Host is up (0.00061s latency).
PORT STATE SERVICE
443/tcp open https
| ssl-enum-ciphers:
| SSLv3: No supported ciphers found
| TLSv1.2:
| ciphers:
| TLS_DHE_RSA_WITH_AES_128_CBC_SHA - strong
| TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 - strong
| TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 - strong
| TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 - strong
| TLS_RSA_WITH_AES_128_CBC_SHA - strong
| TLS_RSA_WITH_AES_128_CBC_SHA256 - strong
| TLS_RSA_WITH_AES_128_GCM_SHA256 - strong
| TLS_RSA_WITH_AES_256_CBC_SHA - strong
| TLS_RSA_WITH_AES_256_CBC_SHA256 - strong
| TLS_RSA_WITH_AES_256_GCM_SHA384 - strong
| compressors:
| NULL
|_ least strength: strong
Nmap done: 1 IP address (1 host up) scanned in 0.57 seconds
~ $
How do I go about disabling these AES-128 ciphers on Cisco ISE?
| TLS_DHE_RSA_WITH_AES_128_CBC_SHA - strong
| TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 - strong
| TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 - strong
| TLS_RSA_WITH_AES_128_CBC_SHA - strong
| TLS_RSA_WITH_AES_128_CBC_SHA256 - strong
| TLS_RSA_WITH_AES_128_GCM_SHA256 - strong
09-08-2023 09:27 AM - edited 09-08-2023 10:58 AM
You can check on the GUI :
Administration > System > Settings > Protocols > Security Settings.
admin guide for reference :
09-08-2023 10:00 AM
@balaji.bandi: Have you ever done this yourself or you are just guessing?
I've gone through the security settings prior to posting the question in the forum and couldn't find any.
09-08-2023 11:01 AM
yes i do from GUI (but i am using ISE 3.3 - may be i would have mentioned in the last post).
But Older version as i remember you can modify the Ciphers needed on the command level. ( ISE used in genereal Linux behind, so you can also change the sshd_config)
we do scan locally many Linux server ( we change that sshd_config) and restarting the SSH deamon should fix the issue.
09-08-2023 11:06 AM
@balaji.bandi: I don't know if you read my post but I was not asking about sshd, I was asking about ssl. They are not the same.
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