The regular users default primary group must be staff (or equivalent) on AIX.
An XCCDF Rule
Description
<VulnDiscussion>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.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-215182r508663_rule
- Severity
- Medium
- References
- Updated
Remediation - Manual Procedure
Set the default primary groups for regular to be "staff".
# chsec -f /etc/security/mkuser.default -s user -a pgrp=staff