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The regular users default primary group must be staff (or equivalent) on AIX.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-215182 | AIX7-00-001016 | SV-215182r508663_rule | Medium |
| Description |
|---|
| The /usr/lib/security/mkuser.default file contains the default primary groups for regular and admin users. Setting a system group as the regular users' primary group increases the risk that the regular users can access privileged resources. |
| STIG | Date |
|---|---|
| IBM AIX 7.x Security Technical Implementation Guide | 2023-08-23 |
Details
| Check Text ( C-16380r293997_chk ) |
|---|
| Check the default primary group for regular users: # lssec -f /etc/security/mkuser.default -s user -a pgrp The above command should yield the following output: user pgrp=staff If the above command shows that the primary group (pgrp) is not "staff", this is a finding. |
| Fix Text (F-16378r293998_fix) |
|---|
| Set the default primary groups for regular to be "staff". # chsec -f /etc/security/mkuser.default -s user -a pgrp=staff |