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

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-204	TSS0450	SV-204r2_rule	DCCS-1 DCCS-2	Medium

Description
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.

Description

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.

STIG	Date
z/OS TSS STIG	2019-12-12

Details

Check Text ( C-457r1_chk )
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 (F-358r1_fix)
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.