The BIG-IP appliance must be configured to 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-60113	F5BI-DM-000031	SV-74543r1_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.

STIG	Date
F5 BIG-IP Device Management 11.x Security Technical Implementation Guide	2015-06-02

Details

Check Text ( C-60931r1_chk )
Verify the BIG-IP appliance is configured to use a remote authentication server to enforce the limit of three consecutive invalid logon attempts by a user during a 15-minute time period. Navigate to the BIG-IP System manager >> System >> Users >> Authentication. Verify "Authentication: User Directory" is configured for an approved remote authentication server to enforce the limit of three consecutive invalid logon attempts by a user during a 15-minute time period. If the BIG-IP appliance is not configure to use a remote authentication server to enforce the limit of three consecutive invalid logon attempts by a user during a 15-minute time period, this is a finding.

Check Text ( C-60931r1_chk )

Verify the BIG-IP appliance is configured to use a remote authentication server to enforce the limit of three consecutive invalid logon attempts by a user during a 15-minute time period.

Navigate to the BIG-IP System manager >> System >> Users >> Authentication.

Verify "Authentication: User Directory" is configured for an approved remote authentication server to enforce the limit of three consecutive invalid logon attempts by a user during a 15-minute time period.

If the BIG-IP appliance is not configure to use a remote authentication server to enforce the limit of three consecutive invalid logon attempts by a user during a 15-minute time period, this is a finding.

Fix Text (F-65663r1_fix)
Configure the BIG-IP appliance to use an approved remote authentication server to enforce the limit of three consecutive invalid logon attempts by a user during a 15-minute time period.