All skeleton files and directories (typically in /etc/skel) must be owned by root or bin.

From AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE

Associated with IA controls: ECLP-1

Associated with: CCI-000225

SV-38737r1_rule All skeleton files and directories (typically in /etc/skel) must be owned by root or bin.

Vulnerability discussion

If the skeleton files are not protected, unauthorized personnel could change user startup parameters and possibly jeopardize user files. Failure to give ownership of sensitive files or utilities to root or bin provides the designated owner and unauthorized users with the potential to access sensitive information or change the system configuration which could weaken the system's security posture.

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Change the ownership of skeleton files with incorrect mode. # chown root /etc/security/.profile /etc/security/mkuser.sys

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