SV-261456r996775_rule
V-261456
SRG-OS-000037-GPOS-00015
SLEM-05-654165
CAT II
10
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
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.
V-261456
False
SLEM-05-654165
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.
M
5596