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RHEL-10-600415 RHEL 10 must automatically lock the root account until the root account is released by an administrator when three unsuccessful login attempts occur during a 15-minute time period.

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

Maps to AC-7 via CCI-002238, CCI-000044

Title

RHEL 10 must automatically lock the root account until the root account is released by an administrator when three unsuccessful login attempts occur during a 15-minute time period.

Control

Verify RHEL 10 is configured to lock the root account after three unsuccessful login attempts with the following command: $ sudo grep even_deny_root /etc/security/faillock.conf even_deny_root If the "even_deny_root" option is not set or is missing or commented out, this is a finding.

Discussion

By limiting the number of failed login attempts, the risk of unauthorized system access via user password guessing, also known as brute-forcing, is reduced. Limits are imposed by locking the account. Satisfies: SRG-OS-000329-GPOS-00128, SRG-OS-000021-GPOS-00005

Related controls

CCI-000044, CCI-002238

Fix

Configure RHEL 10 to lock out the "root" account after a number of incorrect login attempts using "pam_faillock.so". Enable the feature using the following command: $ sudo authselect enable-feature with-faillock Edit the "/etc/security/faillock.conf" by uncommenting or adding the following line: even_deny_root