From SLES 12 Security Technical Implementation Guide
Part of SRG-OS-000037-GPOS-00015
Associated with: CCI-000130 CCI-000169 CCI-000172 CCI-002884
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.
Verify the SUSE operating system generates an audit record for any use of the "su" command. Check that the following command call is being audited by performing the following command to check the file system rules in "/etc/audit/audit.rules": # sudo egrep "\/usr\/bin\/su\s" /etc/audit/audit.rules -a always,exit -F -arch=b32 path=/usr/bin/su -F perm=x -F auid>=500 -F auid!=4294967295 -k privileged-priv_change -a always,exit -F -arch=b64 path=/usr/bin/su -F perm=x -F auid>=500 -F auid!=4294967295 -k privileged-priv_change If command does not return any output, this is a finding.
Configure the SUSE operating system to generate an audit record for all uses of the "su" command. Add or update the following rules in the "/etc/audit/audit.rules" file: -a always,exit -F -arch=b32 path=/usr/bin/su -F perm=x -F auid>=500 -F auid!=4294967295 -k privileged-priv_change -a always,exit -F -arch=b64 path=/usr/bin/su -F perm=x -F auid>=500 -F auid!=4294967295 -k privileged-priv_change The audit daemon must be restarted for the changes to take effect. # sudo systemctl restart auditd.service
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