AIX must turn on SSH daemon privilege separation.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-215297 | AIX7-00-002114 | SV-215297r991589_rule | CCI-000366 | medium |
| Description | ||||
| SSH daemon privilege separation causes the SSH process to drop root privileges when not needed, which would decrease the impact of software vulnerabilities in the unprivileged section. | ||||
| STIG | Date | |||
| IBM AIX 7.x Security Technical Implementation Guide | 2024-08-16 | |||
Details
Check Text (C-215297r991589_chk)
Check the SSH daemon configuration for the "UsePrivilegeSeparation" setting using command:
# grep -i UsePrivilegeSeparation /etc/ssh/sshd_config | grep -v '^#'
UsePrivilegeSeparation yes
If the setting is not present or the setting is "no", this is a finding.
Fix Text (F-16493r294343_fix)
Edit the "/etc/sshd/sshd_config" file and add the following line:
UsePrivilegeSeparation yes
Restart the SSH daemon:
# stopsrc -s sshd
# startsrc -s sshd