The AUTH Control Option values specified are not set to (OVERRIDE,ALLOVER) or (MERGE,ALLOVER).

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-189	TSS0260	SV-189r2_rule	DCCS-1 DCCS-2	Medium

Description
The AUTH Control Option indicates whether TSS will merge the user, profile, and all record for its access search, or whether TSS will search each one separately. 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 AUTH Control Option indicates whether TSS will merge the user, profile, and all record for its access search, or whether TSS will search each one separately. 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	2019-09-27

Details

Check Text ( C-435r1_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(TSS0260) b) If the AUTH Control Option values are set to AUTH(OVERRIDE, ALLOVER) or AUTH(MERGE, ALLOVER), there is NO FINDING. c) If the AUTH Control Option values are not set to AUTH(OVERRIDE, ALLOVER) or AUTH(MERGE, ALLOVER), this is a FINDING.

Check Text ( C-435r1_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(TSS0260)

b) If the AUTH Control Option values are set to AUTH(OVERRIDE, ALLOVER) or AUTH(MERGE, ALLOVER), there is NO FINDING.

c) If the AUTH Control Option values are not set to AUTH(OVERRIDE, ALLOVER) or AUTH(MERGE, ALLOVER), this is a FINDING.

Fix Text (F-20503r1_fix)
The IAO will ensure AUTH control option is set to (OVERRIDE, ALLOVER) or (MERGE, ALLOVER). With (OVERRIDE, ALLOVER), TSS separately searches first the user, then profiles, and then the ALL record for its access authorization. With (MERGE, ALLOVER), TSS merges and searches the user and all profiles, and then the ALL record for its access authorization. Evaluate the impact associated with implementation of the control option. Develop a plan of action to implement the control option setting to AUTH(OVERRIDE, ALLOVER) or AUTH(MERGE, ALLOVER) and proceed with the change.

Fix Text (F-20503r1_fix)

The IAO will ensure AUTH control option is set to (OVERRIDE, ALLOVER) or (MERGE, ALLOVER). With (OVERRIDE, ALLOVER), TSS separately searches first the user, then profiles, and then the ALL record for its access authorization. With (MERGE, ALLOVER), TSS merges and searches the user and all profiles, and then the ALL record for its access authorization. Evaluate the impact associated with implementation of the control option. Develop a plan of action to implement the control option setting to AUTH(OVERRIDE, ALLOVER) or AUTH(MERGE, ALLOVER) and proceed with the change.