Duplicate user names must not exist.
Overview
Finding ID
Version
Rule ID
IA Controls
Severity
V-216193
SOL-11.1-070140
SV-216193r959010_rule
Medium
Description
If a user is assigned a duplicate user name, it will create and have access to files with the first UID for that username in passwd.
Details
Check Text (C-17431r372961_chk)
The root role is required.
Identify any duplicate user names.
# getent passwd | awk -F: '{print $1}' | uniq -d
If output is produced, this is a finding.
Fix Text (F-17429r372962_fix)
The root role is required.
Correct or justify any items discovered in the Check step. Determine if there are any duplicate user names, and work with their respective owners to determine the best course of action in accordance with site policy. Delete or change the user name of duplicate users.
A comprehensive tool for accessing, analyzing, and implementing
Defense Information Systems Agency (DISA) Security Technical
Implementation Guides (STIGs).
Featured Partners
Web page built by Cyber Protection Services. To learn more about our services, click here .
© 2025 DISA STIGS Viewer. All rights reserved.