All skeleton files (typically in /etc/skel) must be group-owned by security.

From AIX 5.3 Security Technical Implementation Guide

Associated with IA controls: ECLP-1

Associated with: CCI-000225

SV-38738r1_rule All skeleton files (typically in /etc/skel) must be group-owned by security.

Vulnerability discussion

If the skeleton files are not protected, unauthorized personnel could change user start-up parameters and possibly jeopardize user files.

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Change the group owner of the skeleton file to security. Procedure: # chgrp security /etc/security/.profile /etc/security/mkuser.sys

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