The AIX SSH daemon must be configured to not use host-based authentication.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-91747 | AIX7-00-002122 | SV-101845r1_rule | Medium |
| Description |
|---|
| SSH trust relationships mean a compromise on one host can allow an attacker to move trivially to other hosts. |
| STIG | Date |
|---|---|
| IBM AIX 7.x Security Technical Implementation Guide | 2020-02-24 |
Details
| Check Text ( C-90901r3_chk ) |
|---|
| 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 Text (F-97945r1_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 |