The IBM z/VM JOURNALING LOGON parameter must be set for lockout after 3 attempts for 15 minutes.
Severity | Group ID | Group Title | Version | Rule ID | Date | STIG Version |
|---|---|---|---|---|---|---|
| medium | V-237900 | SRG-OS-000021-GPOS-00005 | IBMZ-VM-000040 | SV-237900r858930_rule | 2022-08-31 | 2 |
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.
ℹ️ Check
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
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.