Rule ID
SV-238282r958446_rule
Version
V2R4
CCIs
Without generating audit records that are specific to the security and mission needs of the organization, it would be difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. Audit records can be generated from various components within the information system (e.g., module or policy filter).
Verify the Ubuntu operating system generates an audit record upon successful/unsuccessful attempts to use the "apparmor_parser" command. Check the currently configured audit rules with the following command: $ sudo auditctl -l | grep apparmor_parser -a always,exit -S all -F path=/sbin/apparmor_parser -F perm=x -F auid>=1000 -F auid!=-1 -F key=perm_chng If the command does not return a line that matches the example or the line is commented out, this is a finding. Note: The "key=" value is arbitrary and can be different from the example output above.
Configure the audit system to generate an audit event for any successful/unsuccessful use of the "apparmor_parser" command. Add or update the following rules in the "/etc/audit/rules.d/stig.rules" file: -a always,exit -F path=/sbin/apparmor_parser -F perm=x -F auid>=1000 -F auid!=unset -k perm_chng To reload the rules file, issue the following command: $ sudo augenrules --load Note: The "-k <keyname>" at the end of the line gives the rule a unique meaning to help during an audit investigation. The <keyname> does not need to match the example above.