RHEL 9 must automatically lock the root account until the root account is released by an administrator when three unsuccessful logon attempts occur during a 15-minute time period.
An XCCDF Rule
Description
By limiting the number of failed logon 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
- ID
- SV-258055r1045140_rule
- Version
- RHEL-09-411080
- Severity
- Medium
- References
- Updated
Remediation Templates
A Manual Procedure
To configure RHEL 9 to lock out the "root" account after a number of incorrect logon attempts using "pam_faillock.so", first 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