All RHEL 9 interactive users must have a primary group that exists.
An XCCDF Rule
Description
<VulnDiscussion>If a user is assigned the Group Identifier (GID) of a group that does not exist on the system, and a group with the GID is subsequently created, the user may have unintended rights to any files associated with the group.</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-258048r926131_rule
- Severity
- Medium
- References
- Updated
Remediation - Manual Procedure
Configure the system so that all GIDs are referenced in "/etc/passwd" are defined in "/etc/group".
Edit the file "/etc/passwd" and ensure that every user's GID is a valid GID.