AlmaLinux OS 9 must restrict privilege elevation to authorized personnel.

STIG ID: ALMA-09-017290  |  SRG: SRG-OS-000480-GPOS-00227 |  Severity: medium |  CCI: CCI-000366 |  Vulnerability Id: V-269232

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 AlmaLinux OS 9 restricts privilege elevation to authorized personnel with the following command:

$ grep -w ALL /etc/sudoers /etc/sudoers.d/* | grep -v '#'

/etc/sudoers:root ALL=(ALL) ALL
/etc/sudoers:%wheel ALL=(ALL) NOPASSWD: ALL

If the either of the following entries are returned, including their NOPASSWD equivalents, 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 files under /etc/sudoers.d/ (including NOPASSWD equivalents):

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