The /etc/group file must not have an extended ACL.

From MAC OSX 10.6 Workstation Security Technical Implementation Guide

Part of GEN001394

Associated with IA controls: ECLP-1

Associated with: CCI-000225

SV-38093r1_rule The /etc/group file must not have an extended ACL.

Vulnerability discussion

The /etc/group file is critical to system security and must be protected from unauthorized modification. The group file contains a list of system groups and associated information.

Check content

Open a terminal session and enter the following command to view the /etc/group file extended ACLs. ls -lL /etc/group If the permissions include a '+', the file has an extended ACL, this is a finding.

Fix text

Open a terminal session and enter the following command to remove the extended ACLs. chmod -N /etc/group

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