The AIX SSH server must use SSH Protocol 2.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-215289 | AIX7-00-002104 | SV-215289r958408_rule | CCI-000068 | medium |
| Description | ||||
| 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. | ||||
| STIG | Date | |||
| IBM AIX 7.x Security Technical Implementation Guide | 2024-08-16 | |||
Details
Check Text (C-215289r958408_chk)
From the command prompt, run the following command:
# grep ^Protocol /etc/ssh/sshd_config
The above command should yield the following output:
Protocol 2
If the above command does not show the ssh server supporting "Protocol 2" only, this is a finding.
Fix Text (F-16485r294319_fix)
Add or edit the following line in the "/etc/ssh/sshd_config" file to support "Protocol 2" only:
Protocol 2
Save the change to /etc/ssh/sshd_config
Restart ssh daemon:
# stopsrc -s sshd
# startsrc -s sshd