Rule ID
SV-261445r996742_rule
Version
V1R4
Reconstruction of harmful events or forensic analysis is not possible if audit records do not contain enough information. At a minimum, the organization must audit the full-text recording of privileged commands. The organization must maintain audit trails in sufficient detail to reconstruct events to determine the cause and impact of compromise.
Verify SLEM 5 generates an audit record for any use of the "sudo" command with the following command:
> sudo auditctl -l | grep -w '/usr/bin/sudo'
-a always,exit -S all -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=-1 -F key=privileged-sudo
If the command does not return any output, or the returned line is commented out, this is a finding.
Note: The "key=" value is arbitrary and can be different from the example output above.Configure SLEM 5 to generate an audit record for all uses of the "sudo" command.
Add or modify the following line in the "/etc/audit/rules.d/audit.rules" file:
-a always,exit -F path=/usr/bin/sudo -F perm=x -F auid>=1000 -F auid!=unset -k privileged-sudo
To reload the rules file, restart the audit daemon:
> sudo systemctl restart auditd.service
or issue the following command:
> sudo augenrules --load