thanks Nicklas, this is the reply I just got from Citrix, similar to
@Daniel Marsh but they included a workaround: Regarding CVE-2023-48795:
During the Netscaler IP scan, the detection of the deprecated SHA1 Cipher is causing a scan failure.
The Citrix Engineering team is working on the permanent fix, which is to upgrade OpenSSH in a future build. This is planned for June 2024. In the meantime, they provided a temporary workaround, that is modifying the NetScaler sshd_config file to exclude the SHA1 cipher -until the OpenSSH update is implemented-.
Here is the config change to prevent the use of SHA1 ciphers:
cp /etc/sshd_config /nsconfig/sshd_config
chmod 777 /nsconfig/sshd_config; echo "ciphers aes128-ctr,aes192-ctr,aes256-ctr,aes128-cbc" >> /nsconfig/sshd_config
echo "macs
umac-64@openssh.com,hmac-sha2-256,hmac-sha2-512" >> /nsconfig/sshd_config
kill -HUP
cat /var/run/sshd.pid
force HA sync -force -save YES
exit
reboot