Write or greater access to SYS1.SVCLIB must be limited to system programmers only.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-110	ACP00030	SV-110r3_rule	DCCS-1 DCCS-2 DCSL-1 ECAR-1 ECAR-2 ECAR-3	High

Description
This data set is automatically APF-authorized, contains system SVCs, and may also contain I/O appendages. Unauthorized access could result in the compromise of the operating system environment, ACP, and customer data.

STIG	Date
z/OS TSS STIG	2018-10-04

Details

Check Text ( C-22925r2_chk )
Refer to the following report produced by the Data Set and Resource Data Collection: - SENSITVE.RPT(SVCRPT) Automated Analysis Review the following report produced by the Data Set and Resource Data Collection: - PDI(ACP00030) ___ Ensure that the ACP data set rules for SYS1.SVCLIB are limited to only appropriate authorized access. ___ Ensure that the ACP data set rules for SYS1.SVCLIB restrict UPDATE and/or ALTER access to only z/OS systems programming personnel. ___ Ensure that the ACP data set rules for SYS1.SVCLIB specify that all (i.e., failures and successes) UPDATE and/or ALTER access will be logged.

Check Text ( C-22925r2_chk )

Refer to the following report produced by the Data Set and Resource Data Collection:

- SENSITVE.RPT(SVCRPT)

Automated Analysis
Review the following report produced by the Data Set and Resource Data Collection:

- PDI(ACP00030)

___ Ensure that the ACP data set rules for SYS1.SVCLIB are limited to only appropriate authorized access.

___ Ensure that the ACP data set rules for SYS1.SVCLIB restrict UPDATE and/or ALTER access to only z/OS systems programming personnel.

___ Ensure that the ACP data set rules for SYS1.SVCLIB specify that all (i.e., failures and successes) UPDATE and/or ALTER access will be logged.

Fix Text (F-17035r2_fix)
The IAO must ensure that update and allocate access to SYS1.SVCLIB is limited to system programmers only and all update and allocate access is logged and reviewed. Periodic reviews of access authorization to critical system files must be performed. Evaluate the impact of correcting the deficiency. Develop a plan of action and implement the changes for SYS1.SVCLIB. SYS1.SVCLIB contains SVCs and I/O appendages as such: they are very powerful and will be strictly controlled to avoid compromising system integrity.

Fix Text (F-17035r2_fix)

The IAO must ensure that update and allocate access to SYS1.SVCLIB is limited to system programmers only and all update and allocate access is logged and reviewed. Periodic reviews of access authorization to critical system files must be performed. Evaluate the impact of correcting the deficiency. Develop a plan of action and implement the changes for SYS1.SVCLIB. SYS1.SVCLIB contains SVCs and I/O appendages as such: they are very powerful and will be strictly controlled to avoid compromising system integrity.