IBM z/OS UNIX security parameters in etc/profile must be properly specified.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-224088 | TSS0-US-000150 | SV-224088r958472_rule | CCI-000213 | 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 | 2025-06-24 | |||
Details
Check Text (C-224088r958472_chk)
From the ISPF Command Shell enter:
ISHELL
/etc/profile
If the final or only instance of the UMASK command in /etc/profile is specified as "umask 077", this is not a finding.
If the LOGNAME variable is marked read-only (i.e., "readonly LOGNAME") in /etc/profile, this is not a finding.
Fix Text (F-25749r516664_fix)
Configure the etc/profile to specify the UMASK command is executed with a value of 077 and the LOGNAME variable is marked read-only for the /etc/profile file, exceptions are documented with the ISSO.