STIGQter: STIG Summary: z/OS CL/SuperSession for TSS STIG Version: 6 Release: 10 Benchmark Date: 27 Apr 2018:

CL/SuperSession Install data sets must be properly protected.

DISA Rule

SV-27092r2_rule

Vulnerability Number

V-16932

Group Title

ZB000000

Rule Version

ZCLST000

Severity

CAT II

CCI(s)

• 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.

Weight

10

Fix Recommendation

Ensure that update and allocate access to CL/SuperSession install data sets are limited to system programmers only, and all update and allocate access is logged.

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 access for specific data sets, and once documented he will work with the ISSO to see that they are properly restricted to the ACP (Access Control Program ) active on the system.

The following are an example of data sets to be protected:
sys2.omegamon.
sys2.omegamon.*.tlsload
sys2.omegamon.*.tlvload
sys3.omegamon.
sys3.omegamon.rlsload

The following commands are provided as an example for implementing dataset controls:
TSS PERMIT(syspaudt) DSN(sys2.omegamon.) ACCESS(r)
TSS PERMIT(syspaudt) DSN(sys2.omegamon.) ACCESS(all) ACTION(audit)
TSS PERMIT(syspaudt) DSN(sys2.omegamon.*.tlsload) ACCESS(r)
TSS PERMIT(syspaudt) DSN(sys2.omegamon.*.tlsload) ACCESS(all) ACTION(audit)
TSS PERMIT(syspaudt) DSN(sys2.omegamon.*.tlvload) ACCESS(r)
TSS PERMIT(syspaudt) DSN(sys2.omegamon.*.tlvload) ACCESS(all) ACTION(audit)
TSS PERMIT(syspaudt) DSN(sys3.omegamon.) ACCESS(r)
TSS PERMIT(syspaudt) DSN(sys3.omegamon.) ACCESS(all) ACTION(audit)
TSS PERMIT(syspaudt) DSN(sys3.omegamon.*.rlsload) ACCESS(r)
TSS PERMIT(syspaudt) DSN(sys3.omegamon.*.rlsload) ACCESS(all) ACTION(audit)

Check Contents

a) Refer to the following report produced by the Data Set and Resource Data Collection:

- SENSITVE.RPT(KLSRPT)

Automated Analysis:
Refer to the following report produced by the Data Set and Resource Data Collection:

- PDI(ZCLS0000)

b) Verify that access to the CL/SuperSession Install data sets are properly restricted.

___ The TSS data set rules for the data sets does not restrict UPDATE and/or ALTER access to systems programming personnel.

___ The TSS data set rules for the data sets does not specify that all (i.e., failures and successes) UPDATE and/or ALTER access will be logged.

c) If all of the above are untrue, there is NO FINDING.

d) If any of the above is true, this is a FINDING.

Vulnerability Number

V-16932

Documentable

False

Rule Version

ZCLST000

Severity Override Guidance

a) Refer to the following report produced by the Data Set and Resource Data Collection:

- SENSITVE.RPT(KLSRPT)

Automated Analysis:
Refer to the following report produced by the Data Set and Resource Data Collection:

- PDI(ZCLS0000)

b) Verify that access to the CL/SuperSession Install data sets are properly restricted.

___ The TSS data set rules for the data sets does not restrict UPDATE and/or ALTER access to systems programming personnel.

___ The TSS data set rules for the data sets does not specify that all (i.e., failures and successes) UPDATE and/or ALTER access will be logged.

c) If all of the above are untrue, there is NO FINDING.

d) If any of the above is true, this is a FINDING.

Check Content Reference

M

Responsibility

Systems Programmer

Target Key

1857

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