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IBM z/OS SYS1.PARMLIB must be properly protected.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-223697RACF-ES-000500SV-223697r998344_ruleCCI-000171high
Description
Without the capability to restrict which roles and individuals can select which events are audited, unauthorized personnel may be able to prevent the auditing of critical events. Misconfigured audits may degrade the system's performance by overwhelming the audit log. Misconfigured audits may also make it more difficult to establish, correlate, and investigate the events relating to an incident or identify those responsible for one. SYS1.PARMLIB contains the parameters that control audit configuration. Unauthorized access could result in the compromise of the operating system environment, ACP, and customer data. Satisfies: SRG-OS-000063-GPOS-00032, SRG-OS-000080-GPOS-00048, SRG-OS-000259-GPOS-00100, SRG-OS-000324-GPOS-00125, SRG-OS-000337-GPOS-00129, SRG-OS-000362-GPOS-00149
STIGDate
IBM z/OS RACF Security Technical Implementation Guide2026-06-03

Related Frameworks

6 mappings across 5 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (41) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

CFG-02Secure Baseline Configurations
1.00
CHG-04.5Library Privileges
1.00
CRY-01Use of Cryptographic Controls
1.00
DCH-01Data Protection
1.00
END-01Endpoint Device Management (EDM)
1.00
END-04Malicious Code Protection (Anti-Malware)
1.00
END-06Endpoint File Integrity Monitoring (FIM)
1.00
HRS-02Position Categorization
1.00
HRS-11Separation of Duties (SoD)
1.00
IAC-01Identity & Access Management (IAM)
1.00

+31 more (top 10 by confidence shown)

NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (100) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AC-10Concurrent Session Control
1.00
AC-16Security and Privacy Attributes
1.00
AC-17(1)Monitoring and Control
1.00
AC-17(10)Authenticate Remote Commands
1.00
AC-17(2)Protection of Confidentiality and Integrity Using Encryption
1.00
AC-18(1)Authentication and Encryption
1.00
AC-2(1)Automated System Account Management
1.00
AC-2(10)Shared and Group Account Credential Change
1.00
AC-2(11)Usage Conditions
1.00
AC-2(2)Automated Temporary and Emergency Account Management
1.00

+90 more (top 10 by confidence shown)

NIST 800-1710 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (5) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

3.1.1
1.00
3.1.2
1.00
3.1.7
1.00
3.3.1
1.00
3.3.2
1.00
CCI6 mappings
CCI-000171
1.00
CCI-000213
1.00
CCI-001499
1.00
CCI-001914
1.00
CCI-002235
1.00
CCI-003980
1.00
NIST CSF 2.00 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (8) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

DE.CM-01
1.00
DE.CM-03
1.00
DE.CM-09
1.00
PR.AA-05
1.00
PR.DS-10
1.00
PR.IR-01
1.00
PR.PS-04
1.00
PR.PS-05
0.50

Who does this work

19 NICE work roles and 9 EC-Council certifications.

This is an inference across published mappings, not a single claim by anyone. This check maps to a control, which maps to a Cybersecurity Framework outcome, which NIST assigns to the work roles below. EC-Council separately maps its certifications to those same roles.

A certification prepares someone for a role. It is not evidence that a holder is qualified, and neither NIST nor EC-Council has stated that any certification here addresses this check.

Work-role assignments published by NIST (NICE Framework Components 2.2.0 and the CSF 2.0 OLIR crosswalk). Certification mappings published by EC-Council.

Details

Check Text (C-223697r998344_chk)

Execute a dataset list of access to SYS1.PARMLIB. If the ESM data set rules for SYS1.PARMLIB allow inappropriate (e.g., global READ) access, this is a finding. If data set rules for SYS1.PARMLIB do not restrict READ, WRITE or greater access to only systems programming personnel, this is a finding. If data set rules for SYS1.PARMLIB do not restrict READ and UPDATE access to only domain level security administrators, this is a finding. If data set rules for SYS1.PARMLIB do not restrict READ access to only system Level Started Tasks, authorized Data Center personnel, and auditors, this is a finding. If data set rules for SYS1.PARMLIB do not specify that all (i.e., failures and successes) UPDATE and/or ALTER access will be logged, this is a finding.

Fix Text (F-25358r998343_fix)

Configure access rules for SYS1.PARMLIB as follows: Systems programming personnel will be authorized to WRITE or greater the SYS1.PARMLIB concatenation. Domain level security administrators can be authorized to update the SYS1.PARMLIB concatenation. System Level Started Tasks, authorized Data Center personnel, and auditor can be authorized read access by the information system security officer (ISSO). All WRITE or greater access is logged.