The root account must be the only account having unrestricted access to an AlmaLinux OS 9 system.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
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medium | V-269291 | SRG-OS-000480-GPOS-00227 | ALMA-09-023890 | SV-269291r1050173_rule | 2025-02-20 | 1 |
Description |
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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 |
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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 |
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Change the UID of any account on the system, other than root which 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. |