Check: ZMVZA001
z/OS BMC MAINVIEW for z/OS for ACF2 STIG:
ZMVZA001
(in versions v6 r9 through v6 r7)
Title
BMC MAINVIEW for z/OS STC data sets are not properly protected. (Cat II impact)
Discussion
BMC MAINVIEW for z/OS STC data sets have the ability to use privileged functions and/or have access to sensitive data. Failure to properly restrict access to these data sets could result in violating the integrity of the base product which could result in compromising the operating system or sensitive data.
Check Content
Refer to the following report produced by the Data Set and Resource Data Collection: - SENSITVE.RPT(MVZSTC) Automated Analysis Refer to the following report produced by the Data Set and Resource Data Collection: - PDI(ZMVZ0001) Verify that the accesses to the BMC MAINVIEW for z/OS STC data sets are properly restricted. ___ The ACF2 data set rules for the data sets restricts READ access to auditors and authorized users. ___ The ACF2 data set rules for the data sets restricts UPDATE and/or ALTER access to systems programming personnel. ___ The ACF2 data set rules for the data sets restricts UPDATE and/or ALTER access to the BMC MAINVIEW for z/OS’s STC(s) and/or batch user(s).
Fix Text
The IAO will ensure that update and allocate access to BMC MAINVIEW for z/OS STC data sets is limited to System Programmers and/or BMC MAINVIEW for z/OS’s STC(s) and/or batch user(s) only. Read access can be given to auditors and authorized users. The installing Systems Programmer will identify and document the product data sets and categorize them according to who will have update and alter access and if required that all update and allocate access is logged. He will identify if any additional groups have update and/or alter access for specific data sets, and once documented he will work with the IAO to see that they are properly restricted to the ACP (Access Control Program) active on the system. Data sets to be protected will be: SYS3.BMCVIEW (data sets that are altered by the product’s STCs, this can be more specific) The following commands are provided as a sample for implementing data set controls: $KEY(SYS3) BMCVIEW.- UID(<syspaudt>) R(A) W(A) A(A) E(A) BMCVIEW.- UID(<tstcaudt>) R(A) W(A) A(A) E(A) BMCVIEW.- UID(MAINVIEW STCs) R(A) W(A) A(A) E(A) BMCVIEW.- UID(<audtaudt>) R(A) E(A) BMCVIEW.- UID(authorize users) R(A) E(A)
Additional Identifiers
Rule ID: SV-224251r518964_rule
Vulnerability ID: V-224251
Group Title: SRG-OS-000259
Expert Comments
CCIs
Number | Definition |
---|---|
CCI-001499 |
The organization limits privileges to change software resident within software libraries. |
Controls
Number | Title |
---|---|
CM-5 (6) |
Limit Library Privileges |