The LUUPDONCE Control Option value specified is not set to (NO).

From z/OS TSS STIG

Part of TSS0450

Associated with IA controls: DCCS-1, DCCS-2

Associated with: CCI-000366 CCI-002251

SV-204r2_rule The LUUPDONCE Control Option value specified is not set to (NO).

Vulnerability discussion

The LUUPDONCE Control Option indicates whether or not users last-used statistics are updated once a day following their first successful logon.The system-wide options control the default settings for determining how the ACP will function when handling requests for access to the operating system environment, ACP, and customer data. The ACP provides the ability to set a number of these fields at the subsystem level. If no setting is found, the system-wide defaults will be used. The improper setting of any of these fields, individually or in combination with another, can compromise the security of the processing environment. In addition, failure to establish standardized settings for the ACP control options introduces the possibility of exposure during migration process or contingency plan activation.

Check content

a) Refer to the following report produced by the TSS Data Collection: - TSSCMDS.RPT(STATUS) Automated Analysis Refer to the following report produced by the TSS Data Collection: - PDI(TSS0450) b) If the LUUPDONCE Control Option value is set to NO, there is NO FINDING. c) If the LUUPDONCE Control Option value is set to YES, this is a FINDING.

Fix text

The IAO will ensure LUUPDONCE control option is set to (NO). Evaluate the impact associated with implementation of the control option. Develop a plan of action to set the control option setting to NO and proceed with the change.

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