Memory and privileged program dumps must be protected in accordance with proper security requirements.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-182	ACP00260	SV-182r5_rule		Medium

Description
Access to memory and privileged program dumps running Trusted Control Block (TCB) key 0-7 may hold passwords, encryption keys, or other sensitive data must not be made available. Failure to properly control access to these facilities could result in unauthorized personnel modifying sensitive z/OS lists. This exposure may threaten the integrity and availability of the operating system environment, and compromise the confidentiality of customer data.

Description

Access to memory and privileged program dumps running Trusted Control Block (TCB) key 0-7 may hold passwords, encryption keys, or other sensitive data must not be made available. Failure to properly control access to these facilities could result in unauthorized personnel modifying sensitive z/OS lists. This exposure may threaten the integrity and availability of the operating system environment, and compromise the confidentiality of customer data.

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

Details

Check Text ( C-5432r8_chk )
From a command input screen enter: SET RESOURCE (FAC) SET VERBOSE LIST LIKE (IEAABD-) Alternately, this can be viewed by following steps: Refer to the following report produced by the ACF2 Data Collection and Data Set and Resource Data Collection: - SENSITVE.RPT(ACP00260) - ACF2CMDS.RPT(RESOURCE) – Alternate report NOTE: If CLASMAP defines FACILITY as anything other than the default of TYPE(FAC), replace FAC with the appropriate three letters. Automated Analysis Refer to the following report produced by the Data Set and Resource Data Collection: - PDI(ACP00260) Ensure that the Memory and privileged program dumps resources are properly protected as stated below. If all of the following guidance is true, this is not a finding. ___ Ensure that the IEAABD. resource and/or generic equivalent is defined with PREVENT access and that access is not available to any user. ___ Ensure that IEAABD.DMPAUTH. resource and/or generic equivalent is defined and access with SERVICE(READ) is limited to authorized users that have a valid job duties requirement for access. ___ Ensure that IEAABD.DMPAUTH. resource and/or generic equivalent is defined and access with the SERVICE(UPDATE) or greater is restricted to only systems personnel and that all access is logged. ___ Ensure that IEAABD.DMPAKEY. resource and/or generic equivalent is defined and all access is restricted to systems personnel and that all access is logged.

Check Text ( C-5432r8_chk )

From a command input screen enter:

SET RESOURCE (FAC)
SET VERBOSE
LIST LIKE (IEAABD-)

Alternately, this can be viewed by following steps:

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

- SENSITVE.RPT(ACP00260)
- ACF2CMDS.RPT(RESOURCE) – Alternate report

NOTE: If CLASMAP defines FACILITY as anything other than the default of TYPE(FAC), replace FAC with the appropriate three letters.

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

- PDI(ACP00260)

Ensure that the Memory and privileged program dumps resources are properly protected as stated below. If all of the following guidance is true, this is not a finding.

___ Ensure that the IEAABD. resource and/or generic equivalent is defined with PREVENT access and that access is not available to any user.

___ Ensure that IEAABD.DMPAUTH. resource and/or generic equivalent is defined and access with SERVICE(READ) is limited to authorized users that have a valid job duties requirement for access.

___ Ensure that IEAABD.DMPAUTH. resource and/or generic equivalent is defined and access with the SERVICE(UPDATE) or greater is restricted to only systems personnel and that all access is logged.

___ Ensure that IEAABD.DMPAKEY. resource and/or generic equivalent is defined and all access is restricted to systems personnel and that all access is logged.

Fix Text (F-28422r12_fix)
Memory and privileged program dump resources are provided via resources in the FACILITY resource class. Ensure that the following are properly specified in the ACP. (Note: The resource type, resources, and/or resource prefixes identified below are examples of a possible installation. The actual resource type, resources, and/or resource prefixes are determined when the product is actually installed on a system through the product’s installation guide and can be site specific.) Below is listed the access requirements for memory and privileged program dump resources. Ensure the guidelines for the resource type, resources, and/or generic equivalent are followed. When protecting the facilities for dumps lists via the FACILITY resource class, ensure that the following items are in effect: IEAABD. IEAABD.DMPAUTH. IEAABD.DMPAKEY. The ACF2 resources are defined with a default access of PREVENT. Ensure that no access is given to IEAABD. resource. Example: $KEY(IEAABD) TYPE(FAC) - UID() PREVENT IEAABD.DMPAUTH. READ access is limited to authorized users that have a valid job duties requirement for access. UPDATE access will be restricted to system programming personnel and access will be logged. Example: $KEY(IEAABD) TYPE(FAC) DMPAUTH.- UID(syspaudt) SERVICE(UPDATE) LOG DMPAUTH.- UID(authusers) SERVICE(READ) DMPAUTH.- UID() PREVENT IEAABD.DMPAKEY. access will be restricted to system programming personnel and access will be logged. Example: $KEY(IEAABD) TYPE(FAC) DMPAKEY.- UID(syspaudt) LOG DMPAKEY.- UID(*) PREVENT

Fix Text (F-28422r12_fix)

Memory and privileged program dump resources are provided via resources in the FACILITY resource class. Ensure that the following are properly specified in the ACP.

(Note: The resource type, resources, and/or resource prefixes identified below are examples of a possible installation. The actual resource type, resources, and/or resource prefixes are determined when the product is actually installed on a system through the product’s installation guide and can be site specific.)

Below is listed the access requirements for memory and privileged program dump resources. Ensure the guidelines for the resource type, resources, and/or generic equivalent are followed. When protecting the facilities for dumps lists via the FACILITY resource class, ensure that the following items are in effect:

IEAABD.
IEAABD.DMPAUTH.
IEAABD.DMPAKEY.

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

Ensure that no access is given to IEAABD. resource.

Example:

$KEY(IEAABD) TYPE(FAC)
- UID(*) PREVENT

IEAABD.DMPAUTH. READ access is limited to authorized users that have a valid job duties requirement for access. UPDATE access will be restricted to system programming personnel and access will be logged.

Example:

$KEY(IEAABD) TYPE(FAC)
DMPAUTH.- UID(syspaudt) SERVICE(UPDATE) LOG
DMPAUTH.- UID(authusers) SERVICE(READ)
DMPAUTH.- UID(*) PREVENT

IEAABD.DMPAKEY. access will be restricted to system programming personnel and access will be logged.

Example:

$KEY(IEAABD) TYPE(FAC)
DMPAKEY.- UID(syspaudt) LOG
DMPAKEY.- UID(*) PREVENT