Title

AIX SSH daemon must perform strict mode checking of home directory configuration files. (Cat II impact)

Discussion

If other users have access to modify user-specific SSH configuration files, they may be able to log into the system as another user.

Check Content

Check the SSH daemon configuration for the "StrictModes" setting using command: # grep -i StrictModes /etc/ssh/sshd_config | grep -v '^#' StrictModes yes If the setting is missing or is set to "no", this is a finding.

Fix Text

Edit the "/etc/sshd/sshd_config" file and add or change the "StrictModes" setting to "yes". Restart the SSH daemon: # stopsrc -s sshd # startsrc -s sshd

Additional Identifiers

Rule ID: SV-215299r991589_rule

Vulnerability ID: V-215299

Group Title: SRG-OS-000480-GPOS-00227

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.