Check: TSS0995
zOS TSS STIG:
TSS0995
(in versions v6 r43 through v6 r30)
Title
The TSS ALL record has inappropriate access to Facility Matrix Tables. (Cat II impact)
Discussion
All users with the exception of the master security control ACID must be authorized to a facility in order to sign on to it. When the ALL record is assigned Facilities, by default all users on the system have access to that Facility. Users should have limited access, only those facilities that are required to perform their jobs successfully are to be granted directly or via profile(s).
Check Content
Refer to the following reports produced by the TSS Data Collection: - TSSCMDS.RPT(#ALL) - TSSCMDS.RPT(FACLIST) Automated Analysis Refer to the following report produced by the TSS Data Collection: - PDI(TSS0995) Review the ALL record for the assignment of FACILITY. The IAO will ensure that with the exception of DFHSM/HSM, Top Secret facilities will not be granted via the ALL record. The DFHSM/HSM FACILITY can be determined by reviewing FACLIST for the FACILITY that contains INITPGM=ARC.
Fix Text
Review ALL record for FACILITY access. Evaluate the impact of correcting the deficiency. Develop a plan of action and remove access.
Additional Identifiers
Rule ID: SV-25130r2_rule
Vulnerability ID: V-21948
Group Title: TSS0995
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-000213 |
Enforce approved authorizations for logical access to information and system resources in accordance with applicable access control policies. |
Controls
Number | Title |
---|---|
AC-3 |
Access Enforcement |