Resolution
You can generate a self-signed certificate with a CN by issuing these commands on the Adaptive Security Appliance (ASA):
ASA(config)# crypto ca trustpoint myself
ASA(config)# enrollment self
ASA(config)# subject-name CN=abc.xyz.com
ASA(config)# crypto ca enroll myself
To ensure that Secure Sockets Layer (SSL) utilizes the new certificate generated, issue this command:
ASA(config)# ssl trust-point myself