The AIX SSH daemon must be configured to not use host-based authentication.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| medium | V-215304 | SRG-OS-000480-GPOS-00229 | AIX7-00-002122 | SV-215304r991591_rule | 2026-02-06 | 3 |
Description
SSH trust relationships mean a compromise on one host can allow an attacker to move trivially to other hosts.
ℹ️ Check
Check the SSH daemon configuration for allowed host-based authentication using command:
# grep -i HostbasedAuthentication /etc/ssh/sshd_config | grep -v '^#'
HostbasedAuthentication no
If no lines are returned, or the returned "HostbasedAuthentication" directive contains "yes", this is a finding.
✔️ Fix
Edit "/etc/ssh/sshd_config" and add or update the "HostbasedAuthentication" line as:
HostbasedAuthentication no
Save the change and restart ssh daemon:
# stopsrc -s sshd
# startsrc -s sshd