The AIX operating system must be configured to use Multi Factor Authentication for remote connections.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-215438 | AIX7-00-003202 | SV-215438r991589_rule | CCI-000366 | medium |
| Description | ||||
| To assure accountability and prevent unauthenticated access, privileged and non-privileged users must utilize multifactor authentication to prevent potential misuse and compromise of the system. Multifactor authentication uses two or more factors to achieve authentication. Factors include: 1. Something you know (e.g., password/PIN); 2. Something you have (e.g., cryptographic identification device, token); and 3. Something you are (e.g., biometric). The DoD CAC with DoD-approved PKI is an example of multifactor authentication. | ||||
| STIG | Date | |||
| IBM AIX 7.x Security Technical Implementation Guide | 2024-08-16 | |||
Details
Check Text (C-215438r991589_chk)
Verify SSH is configured to use multi factor authentication:
# grep ^sshd /etc/pam.conf | head -3
sshd auth required pam_ckfile
sshd auth required pam_permission file=/etc/security/access.conf found=allow
sshd auth required pam_pmfa /etc/security/pmfa/pam_pmfa.conf
If the output does not match the above lines, any lines are missing, or commented out, this is a finding.
Fix Text (F-16634r294766_fix)
Add or update the following lines in the /etc/pam.conf file:
sshd auth required pam_ckfile
sshd auth required pam_permission file=/etc/security/access.conffound=allow
sshd auth required pam_pmfa /etc/security/pmfa/pam_pmfa.conf