Vanguard Security Solutions (VSS) User data sets are not properly protected.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
medium	V-224544	SRG-OS-000080	ZVSSR002	SV-224544r1082312_rule	2025-03-04	7

Description
VSS User data sets provide the capability to use privileged functions and/or have access to sensitive data. Failure to properly restrict access to their data sets could result in violating the integrity of the base product, which could result in compromising the operating system or sensitive data.

ℹ️ Check
Refer to the following report produced by the Data Set and Resource Data Collection: - SENSITVE.RPT(VSSUSER) Automated Analysis Refer to the following report produced by the Data Set and Resource Data Collection: - PDI(ZVSS0002) Verify that access to the Vanguard Security Solutions (VSS) User data sets are properly restricted. The RACF data set rules for the product user data sets do not restrict READ, UPDATE, and/or ALTER access to systems programming personnel, security personnel, and auditors. The RACF data set rules for the product user data sets do not specify that all (i.e., failures and successes) UPDATE and/or ALTER access will be logged. If all of the above are untrue, this is not a finding. If any of the above is true, this is a finding.

ℹ️ Check

Refer to the following report produced by the Data Set and Resource Data Collection: - SENSITVE.RPT(VSSUSER) Automated Analysis Refer to the following report produced by the Data Set and Resource Data Collection: - PDI(ZVSS0002) Verify that access to the Vanguard Security Solutions (VSS) User data sets are properly restricted. The RACF data set rules for the product user data sets do not restrict READ, UPDATE, and/or ALTER access to systems programming personnel, security personnel, and auditors. The RACF data set rules for the product user data sets do not specify that all (i.e., failures and successes) UPDATE and/or ALTER access will be logged. If all of the above are untrue, this is not a finding. If any of the above is true, this is a finding.

✔️ Fix
The ISSO will ensure that read, update, and alter access to program product user data sets is limited to system programmers, security personnel, and auditors and all update and alter 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 alter access is logged. The installing systems programmer will identify if any additional groups have update access for specific data sets, and once documented, will work with the ISSO to ensure they are properly restricted to the Access Control Program (ACP) active on the system. Data set prefix to be protected will be: SYS3.VSS. The above prefix can specify specific data sets, these would include the VSAM and JCL data sets. The following commands are provided as a sample for implementing dataset controls: ad 'sys3.vss.' uacc(none) owner(sys3) - audit(success(update) failures(read)) - data('Site Customized DS Profile: Vanguard Security Solutions') pe 'sys3.vss.' id(syspaudt secaaudt audtaudt) acc(a)

✔️ Fix

The ISSO will ensure that read, update, and alter access to program product user data sets is limited to system programmers, security personnel, and auditors and all update and alter 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 alter access is logged. The installing systems programmer will identify if any additional groups have update access for specific data sets, and once documented, will work with the ISSO to ensure they are properly restricted to the Access Control Program (ACP) active on the system. Data set prefix to be protected will be: SYS3.VSS. The above prefix can specify specific data sets, these would include the VSAM and JCL data sets. The following commands are provided as a sample for implementing dataset controls: ad 'sys3.vss.**' uacc(none) owner(sys3) - audit(success(update) failures(read)) - data('Site Customized DS Profile: Vanguard Security Solutions') pe 'sys3.vss.**' id(syspaudt secaaudt audtaudt) acc(a)