Check: ACF0870
zOS ACF2 STIG:
ACF0870
(in versions v6 r43 through v6 r30)
Title
Sensitive Utility Controls will be properly defined and protected. (Cat II impact)
Discussion
Sensitive Utility Controls can run sensitive system privileges or controls, and potentially can circumvent system and security controls. Failure to properly control access to these resources could result in the compromise of the confidentiality, integrity, and availability of the operating system environment, system services, ACP, and customer data.
Check Content
Refer to the following report produced by the ACF2 Data Collection and Data Set and Resource Data Collection: - SENSITVE.RPT(ACF0870) - ACF2CMDS.RPT(RESOURCE) – Alternate report Automated Analysis Refer to the following report produced by the Data Set and Resource Data Collection: - PDI(ACF0870) Ensure that all Sensitive Utilities resources and/or generic equivalent are properly protected according to the requirements specified in Sensitive Utility Controls table in the z/OS STIG Addendum. If the following guidance is true, this is not a finding. ___ The ACF2 resources are defined with a default access of PREVENT. ___ The ACF2 resource access authorizations restrict access to the appropriate personnel. ___ The ACF2 resource logging is correctly specified.
Fix Text
The IAO will work with the systems programmer to verify 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.) Ensure that all Sensitive Utility Controls resources and/or generic equivalent are properly protected according to the requirements specified in Sensitive Utility Controls table in the z/OS STIG Addendum. Use Sensitive Utility Controls table in the z/OS STIG Addendum. This table lists the resources, access requirements, and logging requirements for Sensitive Utilities, ensures the following guidelines are followed: The ACF2 resources are defined with a default access of PREVENT. The ACF2 resource access authorizations restrict access to the appropriate personnel. The ACF2 resource logging is correctly specified. The following commands are provided as a sample for implementing resource controls: $KEY(AHLGTF) TYPE(PGM) UID(stcgaudt) LOG UID(*) PREVENT F ACF2,REBUILD(PGM)
Additional Identifiers
Rule ID: SV-183r3_rule
Vulnerability ID: V-183
Group Title: ACF0870
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-002234 |
The information system audits the execution of privileged functions. |
CCI-002235 |
The information system prevents non-privileged users from executing privileged functions to include disabling, circumventing, or altering implemented security safeguards/countermeasures. |