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The root account must be the only account having an UID of 0.


Overview

Finding ID Version Rule ID IA Controls Severity
V-220078 GEN000880 SV-220078r603266_rule Medium
Description
If an account has an UID of 0, it has root authority. Multiple accounts with an UID of 0 afford more opportunity for potential intruders to guess a password for a privileged account.
STIG Date
Solaris 10 X86 Security Technical Implementation Guide 2022-09-07

Details

Check Text ( C-21787r488342_chk )
Check the system for duplicate UID 0 assignments by listing all accounts assigned UID 0.

Procedure:
# awk -F: '$3 == 0' /etc/passwd

If any accounts other than root are assigned UID 0, this is a finding.
Fix Text (F-21786r488343_fix)
Remove or change the UID of accounts other than root that have UID 0.