Title

AIX must provide the lock command to let users retain their session lock until users are reauthenticated. (Cat II impact)

Discussion

All systems are vulnerable if terminals are left logged in and unattended. Leaving system terminals unsecure poses a potential security hazard. To lock the terminal, use the lock command.

Check Content

Check the system to determine if "bos.rte.security" is installed: # lslpp -L bos.rte.security Fileset Level State Type Description (Uninstaller) ---------------------------------------------------------------------------- bos.rte.security 7.2.1.1 C F Base Security Function If the "bos.rte.security" fileset is not installed, this is a finding. Check if lock command exist using the following command: # ls /usr/bin/lock The above command should display the following: /usr/bin/lock If the above command does not show that "/usr/bin/lock" exists, this is a finding.

Fix Text

Install "bos.rte.security" fileset from the AIX DVD Volume 1 using the following command (assuming that the DVD device is mounted to /dev/cd0): # installp -aXYgd /dev/cd0 -e /tmp/install.log bos.rte.security

Additional Identifiers

Rule ID: SV-215187r958400_rule

Vulnerability ID: V-215187

Group Title: SRG-OS-000028-GPOS-00009

Expert Comments

CCIs tied to check.

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