Check: ACF0440
zOS ACF2 STIG:
ACF0440
(in versions v6 r43 through v6 r30)
Title
The SAFDEF GSO record baseline values are not are set to the values previously documented. (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) b) If the GSO SAFDEF record values conform to the following requirements, there is NO FINDING. Vendor defaults as specified in the internal SAFDEF records. NOTE: All vendor-modified and site-defined SAFDEF records will be documented in writing with supporting documentation. c) If there is any deviation from the above requirements in the GSO SAFDEF record values, this is a FINDING.
Fix Text
The IAO will ensure that the SAFDEF GSO values are set to the values specified. Defines System Authorization Facility (SAF) calls that each site may want to process differently than the default ACF2 process. Vendor defaults as specified in the internal SAFDEF records. NOTE: All vendor-modified and site-defined SAFDEF records will be justified in writing with supporting documentation.
Additional Identifiers
Rule ID: SV-149r3_rule
Vulnerability ID: V-149
Group Title: ACF0440
Expert Comments
CCIs
| Number | Definition |
|---|---|
| CCI-000213 |
The information system enforces approved authorizations for logical access to information and system resources in accordance with applicable access control policies. |
| 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. |