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Check: IBMZ-VM-001020

IBM zVM STIG: IBMZ-VM-001020 (in version v1 r0.1)

Title

The IBM z/VM JOURNALING statement must be properly configured. (Cat II impact)

Discussion

By limiting the number of failed logon attempts, the risk of unauthorized system access via user password guessing, otherwise known as brute-forcing, is reduced. Limits are imposed by locking the account.

Check Content

View system config “JOURNALING” statement. If the “JOURNALING” statement “LOGON” operand is configured as below, this is not a finding. Logon, Account after 3 attempts, Lockout after 3 attempts for 0 Link, Account after 3 attempts, Disable after 3 attempts

Fix Text

Configure the system config “JOURNALING” statement to include the following: Logon, Account after 3 attempts, Lockout after 3 attempts for 0 Link, Account after 3 attempts, Disable after 3 attempts

Additional Identifiers

Rule ID:

Vulnerability ID: IBMZ-VM-001020

Group Title:

Expert Comments

Expert comments are only available to logged-in users.

CCIs

CCIs tied to check.

Number	Definition
CCI-002238	The information system automatically locks the account or node for either an organization-defined time period, until the locked account or node is released by an administrator, or delays the next logon prompt according to the organization-defined delay algorithm when the maximum number of unsuccessful logon attempts is exceeded.

Controls

Controls tied to check. These are derived from the CCIs shown above.

Number	Title
AC-7	Unsuccessful Logon Attempts