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. |