The Mainframe Product must enforce the limit of three consecutive invalid logon attempts by a user during a 15 minute time period.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-68175	SRG-APP-000065-MFP-000093	SV-82665r1_rule		Medium

Description
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.

STIG	Date
Mainframe Product Security Requirements Guide	2019-10-08

Details

Check Text ( C-68737r1_chk )
If the Mainframe Product has no function or capability for user logon, this is not applicable. If the Mainframe Product employs an external security manager for all account management functions, this is not applicable. Examine Mainframe Product configuration settings. Verify that the Mainframe Product account management settings enforce a limit of three consecutive invalid logon attempts by a user during a 15 minute time period. If it does not, this is a finding.

Check Text ( C-68737r1_chk )

If the Mainframe Product has no function or capability for user logon, this is not applicable.

If the Mainframe Product employs an external security manager for all account management functions, this is not applicable.

Examine Mainframe Product configuration settings.

Verify that the Mainframe Product account management settings enforce a limit of three consecutive invalid logon attempts by a user during a 15 minute time period. If it does not, this is a finding.

Fix Text (F-74291r1_fix)
Configure the Mainframe Product account management settings to enforce a limit of three consecutive invalid logon attempts by a user during a 15 minute time period.