If anomalies are not acted on, security functions may fail to secure the system. Security function is defined as the hardware, software, and/or firmware of the information system responsible for enforcing the system security policy and supporting the isolation of code and data on which the protection is based. Security functionality includes, but is not limited to, establishing system accounts, configuring access authorizations (i.e., permissions, privileges), setting events to be audited, and setting intrusion detection parameters. Notifications provided by information systems include messages to local computer consoles and/or hardware indications, such as lights. This capability must take into account operational requirements for availability for selecting an appropriate response. The organization may choose to shut down or restart the information system upon security function anomaly detection.

[root@notareal.email]

Fix:Configure the SUSE operating system to notify the SA when AIDE discovers anomalies in the operation of any security functions. Create the aide crontab file in "/etc/cron.daily" and add following command replacing the "[E-MAIL]" parameter with a proper email address for the SA: 0 0 * * * /usr/sbin/aide --check |Configure the SUSE operating system to check the baseline configuration for unauthorized changes at least once weekly. If the "aide" package is not installed, install it with the following command: > sudo zypper in aide Configure the file integrity tool to automatically run on the system at least weekly. The following example output is generic. It will set cron to run AIDE weekly, but other file integrity tools may be used: > cat /etc/cron.weekly/aide 0 0 * * * /usr/sbin/aide --check |Configure the SUSE operating system to notify the SA when AIDE discovers anomalies in the operation of any security functions. Create the aide crontab file in "/etc/cron.daily" and add following command replacing the "[E-MAIL]" parameter with a proper email address for the SA: 0 0 * * * /usr/sbin/aide --check | /bin/mail -s "aide integrity check run for " root@notareal.email