NIS/NIS+/yp files must be group-owned by sys, bin, other, or system.

From AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE

Associated with IA controls: ECLP-1

Associated with: CCI-000225

SV-38776r1_rule NIS/NIS+/yp files must be group-owned by sys, bin, other, or system.

Vulnerability discussion

NIS/NIS+/yp files are part of the system's identification and authentication processes and are, therefore, critical to system security. 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 group owner of the NIS files to sys, bin, system, or other. Procedure: # chgrp system < directory>/< file >

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