Title

IBM z/OS UNIX security parameters in etc/profile must be properly specified. (Cat II impact)

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.

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 and the LOGNAME variable is marked read-only for the /etc/profile file, exceptions are documented with the ISSO.

Additional Identifiers

Rule ID: SV-224088r877926_rule

Vulnerability ID: V-224088

Group Title: SRG-OS-000080-GPOS-00048

Expert Comments

CCIs tied to check.

Controls tied to check. These are derived from the CCIs shown above.