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IBM z/OS UNIX BPXPRMxx security parameters in PARMLIB must be properly specified.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-224087 | TSS0-US-000140 | SV-224087r877925_rule | Medium |
| Description |
|---|
| Configuring the operating system to implement organization-wide security implementation guides and security checklists ensures compliance with federal standards and establishes a common security baseline across DoD that reflects the most restrictive security posture consistent with operational requirements. |
| STIG | Date |
|---|---|
| IBM z/OS TSS Security Technical Implementation Guide | 2024-02-22 |
Details
| Check Text ( C-25760r516660_chk ) |
|---|
| Refer to the BPXPRM00 member of SYS1.PARMLIB. If the required parameter keywords and values are defined as detailed below, this is not a finding. Parameter Keyword Value SUPERUSER BPXROOT TTYGROUP TTY STEPLIBLIST /etc/steplib USERIDALIASTABLE Will not be specified. ROOT SETUID will be specified MOUNT NOSETUID SETUID (for Vendor-provided files)SECURITY STARTUP_PROC OMVS |
| Fix Text (F-25748r516661_fix) |
|---|
| Define the settings in PARMLIB member BPXPRMxx for z/OS UNIX security parameters values to conform to the specifications below: Parameter Keyword Value SUPERUSER BPXROOT TTYGROUP TTY STEPLIBLIST /etc/steplib USERIDALIASTABLE Will not be specified. ROOT SETUID will be specified MOUNT NOSETUIDSETUID (for Vendor-provided files)SECURITY STARTUP_PROC OMVS |