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All accounts on the system must have unique user or account names.


Overview

Finding ID Version Rule ID IA Controls Severity
V-761 GEN000300 SV-27061r1_rule IAIA-2 IAIA-1 Medium
Description
A unique user name is the first part of the identification and authentication process. If user names are not unique, there can be no accountability on the system for auditing purposes. Multiple accounts sharing the same name could result in the Denial of Service to one or both of the accounts or unauthorized access to files or privileges.
STIG Date
SOLARIS 9 SPARC SECURITY TECHNICAL IMPLEMENTATION GUIDE 2015-10-01

Details

Check Text ( C-27977r3_chk )
Check the system for duplicate account names.

Example:
# logins -u | sort | uniq -c | awk '$1 > 1 {print $2}'

If any duplicate account names are found, this is a finding.
Fix Text (F-24342r1_fix)
Change user account names, or delete accounts, so each account has a unique name.