The IBM z/VM JOURNALING LOGON parameter must be set for lockout after 3 attempts for 15 minutes.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-237900 | IBMZ-VM-000040 | SV-237900r858930_rule | CCI-000044 | medium |
| Description | ||||
| By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise known as brute-force attacks, is reduced. Limits are imposed by locking the account. | ||||
| STIG | Date | |||
| IBM zVM Using CA VM:Secure Security Technical Implementation Guide | 2022-08-31 | |||
Details
Check Text (C-237900r858930_chk)
Display the System Configuration File.
If the "JOURNALING" statement is set to:
Facility ON
LOGON
Lockout after three attempts for 15 minutes, this is not a finding.
Note: Site may set Lockout value at 0, this will require system administrator action for reset.
Issue "QUERY JOURNAL" command.
If the response is as follows this is not a finding:
Journal: LOGON-on
Fix Text (F-41069r858929_fix)
Configure the System Configuration "JOURNALING" statement to:
Facility ON
LOGON
Lockout after 3 attempts for 15 minutes or 0 if system administrator action is desired.