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

From Oracle Linux 5 Security Technical Implementation Guide

Associated with: CCI-000225

SV-64515r1_rule NIS/NIS+/yp files must be group-owned by root, sys, or bin.

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.

Check content

Perform the following to check NIS file group ownership: # ls -la /var/yp/* If the file group ownership is not root, sys, or bin, this is a finding.

Fix text

Perform the following to change NIS file ownership. # chgrp root /var/yp/*

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