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On AIX, the SSH server must not permit root logins using remote access programs.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-91577 | AIX7-00-002102 | SV-101675r1_rule | Medium |
| Description |
|---|
| Permitting direct root login reduces auditable information about who ran privileged commands on the system and also allows direct attack attempts on root's password. |
| STIG | Date |
|---|---|
| IBM AIX 7.x Security Technical Implementation Guide | 2020-02-24 |
Details
| Check Text ( C-90731r1_chk ) |
|---|
| Determine if the SSH daemon is configured to disable root logins: # grep -iE "PermitRootLogin[[:blank:]]*no" /etc/ssh/sshd_config | grep -v \# If the above command displays a line, the root login is disabled. If the root login is not disabled, this is a finding. |
| Fix Text (F-97775r1_fix) |
|---|
| Edit the "/etc/ssh/sshd_config" file to have the following line and save the change: PermitRootLogin no Restart SSH daemon: # stopsrc -s sshd # startsrc -s sshd |