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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-224088r877926_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 2022-12-14

Details

Check Text ( C-25761r516663_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.