The root account must be the only account having unrestricted access to RHEL 9 system.
An XCCDF Rule
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.
- ID
- SV-258059r991589_rule
- Version
- RHEL-09-411100
- Severity
- High
- References
- Updated
Remediation Templates
A Manual Procedure
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.