AIX7-00-003100 - The AIX SSH daemon must be configured to only use FIPS 140-2 approved ciphers - CBC
Without confidentiality protection mechanisms, unauthorized individuals may gain access to sensitive information via a remote access session. Remote access is access to DoD nonpublic information systems by an authorized user (or an information system) communicating through an external, non-organization-controlled network. Remote access methods include, for example, dial-up, broadband, and wireless. Encryption provides a means to secure the remote connection to prevent unauthorized access to the data traversing the remote access connection (e.g., RDP), thereby providing a degree of confidentiality. The encryption strength of a mechanism is selected based on the security categorization of the information.
Edit the '/etc/ssh/sshd_config' file and add or edit a 'Ciphers' line like this: Ciphers aes128-ctr,aes192-ctr,aes256-ctr Restart the SSH daemon: # stopsrc -s sshd # startsrc -s sshd