The root account must be the only account having unrestricted access to RHEL 9 system.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| high | V-258059 | SRG-OS-000480-GPOS-00227 | RHEL-09-411100 | SV-258059r991589_rule | 2025-02-27 | 2 |
| Description |
|---|
| An account has root authority if it has a user identifier (UID) of "0". Multiple accounts with a UID of "0" afford more opportunity for potential intruders to guess a password for a privileged account. Proper configuration of sudo is recommended to afford multiple system administrators access to root privileges in an accountable manner. |
| ℹ️ Check |
|---|
| Verify that only the "root" account has a UID "0" assignment with the following command: $ awk -F: '$3 == 0 {print $1}' /etc/passwd root If any accounts other than "root" have a UID of "0", this is a finding. |
| ✔️ Fix |
|---|
| Change the UID of any account on the system, other than root, that has a UID of "0". If the account is associated with system commands or applications, the UID should be changed to one greater than "0" but less than "1000". Otherwise, assign a UID of greater than "1000" that has not already been assigned. |