The TSOKEYS GSO record values specified are not in accordance with security requirements.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-154	ACF0520	SV-154r2_rule	DCCS-1 DCCS-2	Medium

Description
• (ACF0520: CAT II) The IAO will ensure that the TSOKEYS GSO value is set to KEYWORDS().... 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 one 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 a migration process or contingency plan activation.

Description

• (ACF0520: CAT II) The IAO will ensure that the TSOKEYS GSO value is set to KEYWORDS().... 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 one 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 a migration process or contingency plan activation.

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

Details

Check Text ( C-17748r1_chk )
a) Refer to the following report produced by the ACF2 Data Collection: - ACF2CMDS.RPT(ACFGSO) Automated Analysis Refer to the following report produced by the ACF2 Data Collection: - PDI(ACF0520) b) If the GSO TSOKEYS record values conform to the following requirements, there is NO FINDING. KEYWORDS() c) If there is any deviation from the above requirements in the GSO TSOKEYS record values, this is a FINDING.

Check Text ( C-17748r1_chk )

a) Refer to the following report produced by the ACF2 Data Collection:

- ACF2CMDS.RPT(ACFGSO)

Automated Analysis
Refer to the following report produced by the ACF2 Data Collection:

- PDI(ACF0520)

b) If the GSO TSOKEYS record values conform to the following requirements, there is NO FINDING.

KEYWORDS()

c) If there is any deviation from the above requirements in the GSO TSOKEYS record values, this is a FINDING.

Fix Text (F-16877r1_fix)
The IAO will ensure that the TSOKEYS GSO value is set to KEYWORDS(). Defines site supplied keywords permitted by ACF2 at TSO logon time. Ensure the GSO TSOKEYS record values conform to the following requirements. KEYWORDS() Example: SET C(GSO) INSERT TSOKEYS KEYWORDS() F ACF2,REFRESH(TSOKEYS)