The EXITS GSO record value specifies the module names of site written ACF2 exit routines.

From z/OS ACF2 STIG

Part of ACF0310

Associated with IA controls: DCCS-1, DCCS-2

Associated with: CCI-000021 CCI-000366 CCI-000368 CCI-000764 CCI-000765 CCI-001764

SV-136r2_rule The EXITS GSO record value specifies the module names of site written ACF2 exit routines.

Vulnerability discussion

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.

Check content

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(ACF0310) b) If the GSO EXITS record values conform to the following requirements, there is NO FINDING. Specifies the module names of site written ACF2 exit routines. NOTE: The DSNPOST exit is optional and is not required to be specified in the GSO EXITS record. DSNPOST(module) SEVPRE(SEVPRE01) SEVPOST(SEVPST01) NOTE: No other exits are authorized at this time. NOTE: Local changes will be documented in writing with supporting documentation. c) If there is any deviation from the above requirements in the GSO EXITS record values, this is a FINDING.

Fix text

The IAO will ensure the EXITS GSO value specifies the module names of site written ACF2 exit routines. Specifies the module names of site written ACF2 exit routines. NOTE: The DSNPOST exit is optional and is not required to be specified in the GSO EXITS record. DSNPOST(module) SEVPRE(SEVPRE01) SEVPOST(SEVPST01) Example: SET C(GSO) INSERT EXITS DSNPOST(module) SEVPRE(SEVPRE01) SEVPOST(SEVPST01) F ACF2,REFRESH(EXITS) NOTE: No other exits are authorized at this time. NOTE: Local changes will be justified in writing with supporting documentation.

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