IEASYMUP resource will be protected in accordance with proper security requirements.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-29532	ACP00350	SV-38875r4_rule	ECCD-1 ECCD-2	Medium

Description
Failure to properly control access to the IEASYMUP resource could result in unauthorized personnel modifying sensitive z/OS symbolic. This exposure may threaten the integrity and availability of the operating system environment.

STIG	Date
z/OS ACF2 STIG	2019-12-12

Details

Check Text ( C-35928r4_chk )
Refer to the following report produced by the ACF2 Data Collection and Data Set and Resource Data Collection: - SENSITVE.RPT(FACILITY) - ACF2CMDS.RPT(RESOURCE) – Alternate report Automated Analysis Refer to the following report produced by the Data Set and Resource Data Collection: - PDI(ACP00350) Review resource rules for TYPE(FAC). Verify that the accesses for IEASYMUP resources and/or generic equivalent are properly restricted. If the following guidance is true, this is not a finding. ___ The ACF2 resources are defined with a default access of PREVENT. ___ The ACF2 resource access authorizations state that SERVICE(UPDATE) and/or greater access to DASD administrators, Tape Library personnel, and system programming personnel. ___ The ACF2 resource logging requirements are specified.

Check Text ( C-35928r4_chk )

Refer to the following report produced by the ACF2 Data Collection and Data Set and Resource Data Collection:

- SENSITVE.RPT(FACILITY)
- ACF2CMDS.RPT(RESOURCE) – Alternate report

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

- PDI(ACP00350)

Review resource rules for TYPE(FAC).

Verify that the accesses for IEASYMUP resources and/or generic equivalent are properly restricted. If the following guidance is true, this is not a finding.

___ The ACF2 resources are defined with a default access of PREVENT.

___ The ACF2 resource access authorizations state that SERVICE(UPDATE) and/or greater access to DASD administrators, Tape Library personnel, and system programming personnel.

___ The ACF2 resource logging requirements are specified.

Fix Text (F-34305r4_fix)
The IAO will ensure that the System level symbolic resources are defined to the FACILITY resource class and protected. UPDATE access to the System level symbolic resources are limited to System Programmers, DASD Administrators, and/or Tape Library personnel. All access is logged. Ensure the guidelines for the resources and/or generic equivalent are followed. Limit access to the IEASYMUP resources to the above personnel with LOG and SERVICE(UPDATE) and/or greater access. The following commands are provided as a sample for implementing resource controls: $KEY(IEASYMUP) TYPE(FAC) - UID() SERVICE(UPDATE) LOG - UID() SERVICE(UPDATE) LOG - UID() SERVICE(UPDATE) LOG - UID(*) PREVENT SET R(FAC) COMPILE 'ACF2.FAC(IEASYMUP)' STORE F ACF2,REBUILD(FAC)

Fix Text (F-34305r4_fix)

The IAO will ensure that the System level symbolic resources are defined to the FACILITY resource class and protected. UPDATE access to the System level symbolic resources are limited to System Programmers, DASD Administrators, and/or Tape Library personnel. All access is logged. Ensure the guidelines for the resources and/or generic equivalent are followed.

Limit access to the IEASYMUP resources to the above personnel with LOG and SERVICE(UPDATE) and/or greater access.

The following commands are provided as a sample for implementing resource controls:

$KEY(IEASYMUP) TYPE(FAC)
- UID() SERVICE(UPDATE) LOG
- UID() SERVICE(UPDATE) LOG
- UID() SERVICE(UPDATE) LOG
- UID(*) PREVENT

SET R(FAC)
COMPILE 'ACF2.FAC(IEASYMUP)' STORE

F ACF2,REBUILD(FAC)