SLEM 5 must generate audit records for all uses of the "delete

SLEM 5 must generate audit records for all uses of the "delete_module" system call.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-261456	SLEM-05-654165	SV-261456r996775_rule		Medium

Description
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).

STIG	Date
SUSE Linux Enterprise Micro (SLEM) 5 Security Technical Implementation Guide	2024-06-04

Details

Check Text ( C-65185r996773_chk )
Verify SLEM 5 generates an audit record for all uses of the "delete_module" system call with the following command: > sudo auditctl -l \| grep -w 'delete_module' -a always,exit -F arch=b32 -S delete_module -F auid>=1000 -F auid!=-1 -F key=unload_module -a always,exit -F arch=b64 -S delete_module -F auid>=1000 -F auid!=-1 -F key=unload_module If both the "b32" and "b64" audit rules are not defined for the "unload_module" syscall, this is a finding. Note: The "key=" value is arbitrary and can be different from the example output above.

Check Text ( C-65185r996773_chk )

Verify SLEM 5 generates an audit record for all uses of the "delete_module" system call with the following command:

> sudo auditctl -l | grep -w 'delete_module'
-a always,exit -F arch=b32 -S delete_module -F auid>=1000 -F auid!=-1 -F key=unload_module
-a always,exit -F arch=b64 -S delete_module -F auid>=1000 -F auid!=-1 -F key=unload_module

If both the "b32" and "b64" audit rules are not defined for the "unload_module" syscall, this is a finding.

Note: The "key=" value is arbitrary and can be different from the example output above.

Fix Text (F-65093r996774_fix)
Configure SLEM 5 to generate an audit record for all uses of the "delete_module" system call. Add or modify the following lines in the "/etc/audit/rules.d/audit.rules" file: -a always,exit -F arch=b32 -S delete_module -F auid>=1000 -F auid!=unset -k unload_module -a always,exit -F arch=b64 -S delete_module -F auid>=1000 -F auid!=unset -k unload_module To reload the rules file, restart the audit daemon: > sudo systemctl restart auditd.service or issue the following command: > sudo augenrules --load

Fix Text (F-65093r996774_fix)

Configure SLEM 5 to generate an audit record for all uses of the "delete_module" system call.

Add or modify the following lines in the "/etc/audit/rules.d/audit.rules" file:

-a always,exit -F arch=b32 -S delete_module -F auid>=1000 -F auid!=unset -k unload_module
-a always,exit -F arch=b64 -S delete_module -F auid>=1000 -F auid!=unset -k unload_module

To reload the rules file, restart the audit daemon:

> sudo systemctl restart auditd.service

or issue the following command:

> sudo augenrules --load