Rule ID
SV-260619r958446_rule
Version
V2R8
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 Ubuntu 22.04 LTS generates an audit record upon successful/unsuccessful attempts to use the "setfacl" command by using the following command:
$ sudo auditctl -l | grep setfacl
-a always,exit -S all -F path=/usr/bin/setfacl -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 "setfacl" command.
Add or modify the following line in the "/etc/audit/rules.d/stig.rules" file:
-a always,exit -F path=/usr/bin/setfacl -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.