The IBM z/VM JOURNALING LOGON parameter must be set for lockout after 3 attempts for 15 minutes.

From IBM z/VM Using CA VM:Secure Security Technical Implementation Guide

Associated with: CCI-000044

SV-93553r2_rule The IBM z/VM JOURNALING LOGON parameter must be set for lockout after 3 attempts for 15 minutes.

Vulnerability discussion

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.

Check content

Display the System Configuration File. If the “JOURNALING” statement is set to: Facility ON LOGON Lockout after 3 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

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.

Pro Tips

Lavender hyperlinks in small type off to the right (of CSS class id, if you view the page source) point to globally unique URIs for each document and item. Copy the link location and paste anywhere you need to talk unambiguously about these things.

You can obtain data about documents and items in other formats. Simply provide an HTTP header Accept: text/turtle or Accept: application/rdf+xml.