RHEL 9 must restrict privilege elevation to authorized personnel.

STIG ID: RHEL-09-432030  |  SRG: SRG-OS-000480-GPOS-00227 |  Severity: medium |  CCI: CCI-000366 |  Vulnerability Id: V-258087

Vulnerability Discussion

If the "sudoers" file is not configured correctly, any user defined on the system can initiate privileged actions on the target system.

Check

Verify RHEL 9 restricts privilege elevation to authorized personnel with the following command:

$ sudo sh -c 'grep -iw ALL /etc/sudoers /etc/sudoers.d/*'

If the either of the following entries are returned, this is a finding:
ALL ALL=(ALL) ALL
ALL ALL=(ALL:ALL) ALL

Fix

Remove the following entries from the /etc/sudoers file or configuration file under /etc/sudoers.d/:

ALL ALL=(ALL) ALL
ALL ALL=(ALL:ALL) ALL
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