Ensure the Default Umask is Set Correctly For Interactive Users
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Description
Remove the UMASK environment variable from all interactive users initialization files.
Rationale
The umask controls the default access mode assigned to newly created files. A
umask of 077 limits new files to mode 700 or less permissive. Although umask can
be represented as a four-digit number, the first digit representing special
access modes is typically ignored or required to be 0. This requirement
applies to the globally configured system defaults and the local interactive
user defaults for each account on the system.
