RHEL 9 duplicate User IDs (UIDs) must not exist for interactive users.
An XCCDF Rule
Description
<VulnDiscussion>To ensure accountability and prevent unauthenticated access, interactive users must be identified and authenticated to prevent potential misuse and compromise of the system. Satisfies: SRG-OS-000104-GPOS-00051, SRG-OS-000121-GPOS-00062, SRG-OS-000042-GPOS-00020</VulnDiscussion><FalsePositives></FalsePositives><FalseNegatives></FalseNegatives><Documentable>false</Documentable><Mitigations></Mitigations><SeverityOverrideGuidance></SeverityOverrideGuidance><PotentialImpacts></PotentialImpacts><ThirdPartyTools></ThirdPartyTools><MitigationControl></MitigationControl><Responsibility></Responsibility><IAControls></IAControls>
- ID
- SV-258045r958482_rule
- Severity
- Medium
- References
- Updated
Remediation - Manual Procedure
Edit the file "/etc/passwd" and provide each interactive user account that has a duplicate UID with a unique UID.