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The aliases file must be group-owned by wheel.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-22438 | GEN004370 M6 | SV-38128r1_rule | ECLP-1 | Medium |
| Description |
|---|
| If the alias file is not group-owned by a system group, an unauthorized user may modify the file to add aliases to run malicious code or redirect email. |
| STIG | Date |
|---|---|
| MAC OSX 10.6 Workstation Security Technical Implementation Guide | 2013-04-09 |
Details
| Check Text ( C-37666r1_chk ) |
|---|
| Open a terminal session and use the following command to verify the group ownership of the /etc/aliases file. ls -lL /etc/aliases If the /etc/aliases file is not group owned by wheel, this is a finding. |
| Fix Text (F-32907r1_fix) |
|---|
| Open a terminal session and enter the following command to set the group. chgrp wheel /etc/aliases |