Check: TSS0385
zOS TSS STIG:
TSS0385
(in versions v6 r43 through v6 r30)
Title
The Facility Control Option does not specify the sub option of MODE=FAIL. (Cat I 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 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 or sub options introduces the possibility of exposure during migration process or contingency plan activation.
Check Content
a) Refer to the following report produced by the TSS Data Collection: - TSSCMDS.RPT(FACALL) Automated Analysis Refer to the following report produced by the TSS Data Collection: - PDI(TSS0385) b) If the FACILTY Control Option specifies the sub option of MODE=FAIL there is NO FINDING. c) If the FACILTY Control Option does not specifies the sub option of MODE=FAIL , this is a FINDING.
Fix Text
Evaluate the impact associated with implementation of the FACILITY Control Option MODE sub-option. Develop a plan of action to implement the FACILITY Control Option MODE sub-option setting to MODE=FAIL and proceed with the change.
Additional Identifiers
Rule ID: SV-15870r2_rule
Vulnerability ID: V-15098
Group Title: TSS0385
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-000366 |
Implement the security configuration settings. |
CCI-002357 |
Implement a reference monitor for organization-defined access control policies that is tamperproof. |
CCI-002358 |
Implement a reference monitor for organization-defined access control policies that is always invoked. |