Finding ID | Version | Rule ID | IA Controls | Severity |
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V-29281 | GEN002825-2 | SV-45451r1_rule | Medium |
Description |
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Actions concerning dynamic kernel modules must be recorded as they are substantial events. Dynamic kernel modules can increase the attack surface of a system. A malicious kernel module can be used to substantially alter the functioning of a system, often with the purpose of hiding a compromise from the SA. |
STIG | Date |
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SUSE Linux Enterprise Server v11 for System z | 2016-12-20 |
Check Text ( C-42800r1_chk ) |
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Determine if the delete_module syscall is audited. # cat /etc/audit/audit.rules | grep -e "-a exit,always" | grep -i "delete_module" If the result does not contain "-S delete_module", this is a finding. |
Fix Text (F-38848r1_fix) |
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The "-F arch= On single architecture systems, the "-F arch= Any restrictions (such as with "-F") beyond those provided in the example rules are not in strict compliance with this requirement, and are a finding unless justified and documented appropriately. The use of audit keys consistent with the provided example is encouraged to provide for uniform audit logs, however omitting the audit key or using an alternate audit key is not a finding. Procedure: Configure auditing of the delete_module syscalls. Add the following to the "/etc/audit/audit.rules" file: -a exit,always -S delete_module Restart the auditd service. # rcauditd restart OR # service auditd restart |