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The root account must be the only account having unrestricted access to the OL 8 system.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-248874 | OL08-00-040200 | SV-248874r780188_rule | High |
| 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. |
| STIG | Date |
|---|---|
| Oracle Linux 8 Security Technical Implementation Guide | 2023-06-02 |
Details
| Check Text ( C-52308r780186_chk ) |
|---|
| Check the system for duplicate UID "0" assignments with the following command: $ sudo awk -F: '$3 == 0 {print $1}' /etc/passwd If any accounts other than root have a UID of "0", this is a finding. |
| Fix Text (F-52262r780187_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, change the UID to one greater than "0" but less than "1000". Otherwise, assign a UID of greater than "1000" that has not already been assigned. |