Title

IBM z/OS BUFUSEWARN in the SMFPRMxx must be properly set. (Cat II impact)

Discussion

It is critical for the appropriate personnel to be aware if a system is at risk of failing to process audit logs as required. Without this notification, the security personnel may be unaware of an impending failure of the audit capability, and system operation may be adversely affected. Audit processing failures include software/hardware errors, failures in the audit capturing mechanisms, and audit storage capacity being reached or exceeded. This requirement applies to each audit data storage repository (i.e., distinct information system component where audit records are stored), the centralized audit storage capacity of organizations (i.e., all audit data storage repositories combined), or both. Satisfies: SRG-OS-000046-GPOS-00022, SRG-OS-000343-GPOS-00134, SRG-OS-000344-GPOS-00135

Check Content

Refer to IEASYS00 member in SYS1.PARMLIB Concatenation. Determine proper SMFPRMxx member in SYS1.PARMLIB. If BUFUSEWARN is set for 75 (75%) or less this is not a finding.

Fix Text

Configure the BUFUSEWARN statement in SMFPRMxx to 75 (75%) or less.

Additional Identifiers

Rule ID: SV-223549r958424_rule

Vulnerability ID: V-223549

Group Title: SRG-OS-000046-GPOS-00022

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.