System files and directories must not have uneven access permissions.

From MAC OSX 10.6 Workstation Security Technical Implementation Guide

Associated with IA controls: ECCD-2, ECCD-1

Associated with: CCI-000225

SV-37853r1_rule System files and directories must not have uneven access permissions.

Vulnerability discussion

Discretionary access control is undermined if users, other than a file owner, have greater access permissions to system files and directories than the owner.

Check content

Open a terminal session and use the following command to verify the system directories do not have uneven file permissions. ls -lL /etc /bin /usr/bin /sbin /usr/sbin If any directories listed contain uneven file permissions, this is a finding.

Fix text

Use the "chmod" command to set the mode of files with uneven permissions so the owners do not have less permission than group or world users.

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