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← Back to IBM z/OS RACF Security Technical Implementation Guide

V-223842

CAT II (Medium)

IBM z/OS UNIX security parameters in etc/profile must be properly specified.

Rule ID

SV-223842r1137691_rule

STIG

IBM z/OS RACF Security Technical Implementation Guide

Version

V9R8

CCIs

CCI-000213

Discussion

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. Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections.

Check Content

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

Configure the etc/profile to specify the UMASK command is executed with a value of 077, the LOGNAME variable is marked read-only for the /etc/profile file, and exceptions are documented with the ISSO.