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RHEL-10-600400 RHEL 10 must allow only the root account to have unrestricted access to the system.

DISA STIG library V1R3
All changes in this version
first version loaded CAT II

Maps to AC-3 via CCI-000213

Title

RHEL 10 must allow only the root account to have unrestricted access to the system.

Control

Verify RHEL 10 is configured so 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.

Discussion

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.

Related controls

CCI-000213

Fix

Configure RHEL 10 so that only the "root" account has a UID assignment of "0". 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.