Check: ACF0420
zOS ACF2 STIG:
ACF0420
(in versions v6 r43 through v6 r30)
Title
The RESVOLS GSO record value is set to Volmask(-). Any other setting requires documentation justifying the change. (Cat II impact)
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(ACF0420) b) If the GSO RESVOLS record values conform to the following requirements, there is NO FINDING. VOLMASK(-) NOTE: Local changes will be documented in writing with supporting documentation. c) If there is any deviation from the above requirements in the GSO RESVOLS record values, this is a FINDING.
Fix Text
The IAO will ensure that the RESVOL GSO value is set to Volmask(-). Any other setting requires documentation justifying the change. Ensure the GSO RESVOLS record values conform to the following requirements. VOLMASK(-) Example: SET C(GSO) INSERT RESVOLS VOLMASK(-) F ACF2,REFRESH(RESVOLS) NOTE: Local changes will be justified in writing with supporting documentation.
Additional Identifiers
Rule ID: SV-147r2_rule
Vulnerability ID: V-147
Group Title: ACF0420
Expert Comments
CCIs
| Number | Definition |
|---|---|
| CCI-000368 |
The organization documents any deviations from the established configuration settings for organization-defined information system components based on organization-defined operational requirements. |
| CCI-000369 |
The organization approves any deviations from the established configuration settings for organization-defined information system components based on organization-defined operational requirements. |
| CCI-001199 |
The information system protects the confidentiality and/or integrity of organization-defined information at rest. |
| CCI-001399 |
The information system supports and maintains the binding of organization-defined security attributes to information in storage. |