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The SUSE operating system must generate audit records for all modifications to the lastlog file.


Finding ID Version Rule ID IA Controls Severity
V-234947 SLES-15-030480 SV-234947r854254_rule Medium
Without generating audit records 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). Satisfies: SRG-OS-000037-GPOS-00015, SRG-OS-000062-GPOS-00031, SRG-OS-000392-GPOS-00172, SRG-OS-000462-GPOS-00206, SRG-OS-000471-GPOS-00215, SRG-OS-000473-GPOS-00218
SUSE Linux Enterprise Server 15 Security Technical Implementation Guide 2022-12-07


Check Text ( C-38135r619110_chk )
Verify the SUSE operating system generates an audit record when all modifications to the "lastlog" file occur.

Check that the file is being audited by performing the following command:

> sudo auditctl -l | grep -w '/var/log/lastlog'

-w /var/log/lastlog -p wa -k logins

If the command does not return a line, this is a finding.

The "-k" allows for specifying an arbitrary identifier. The string following "-k" does not need to match the example output above.
Fix Text (F-38098r619111_fix)
Configure the SUSE operating system to generate an audit record for any all modifications to the "lastlog" file occur.

Add or update the following rule to "/etc/audit/rules.d/audit.rules":

-w /var/log/lastlog -p wa -k logins

To reload the rules file, restart the audit daemon

> sudo systemctl restart auditd.service

or issue the following command:

> sudo augenrules --load