The Oracle Linux operating system must be configured so that the root account must be the only account having unrestricted access to the system.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| high | V-221723 | SRG-OS-000480-GPOS-00227 | OL07-00-020310 | SV-221723r991589_rule | 2025-02-20 | 3 |
| Description |
|---|
| If an account other than root also has a User Identifier (UID) of "0", it has root authority, giving that account unrestricted access to the entire operating system. Multiple accounts with a UID of "0" afford an opportunity for potential intruders to guess a password for a privileged account. |
| ℹ️ Check |
|---|
| Check the system for duplicate UID "0" assignments with the following command: # awk -F: '$3 == 0 {print $1}' /etc/passwd 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. |