The BIG-IP appliance must limit the number of concurrent sessions to the Configuration Utility to 10 or an organization-defined number.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-217381	F5BI-DM-000003	SV-217381r557520_rule		Medium

Description
Device management includes the ability to control the number of administrators and management sessions that manage a device. Limiting the number of allowed administrators and sessions per administrator is helpful in limiting risks related to DoS attacks. This requirement addresses concurrent sessions for administrative accounts and does not address concurrent sessions by a single administrator via multiple administrative accounts. The maximum number of concurrent sessions should be defined based upon mission needs and the operational environment for each system.

Description

Device management includes the ability to control the number of administrators and management sessions that manage a device. Limiting the number of allowed administrators and sessions per administrator is helpful in limiting risks related to DoS attacks. This requirement addresses concurrent sessions for administrative accounts and does not address concurrent sessions by a single administrator via multiple administrative accounts. The maximum number of concurrent sessions should be defined based upon mission needs and the operational environment for each system.

STIG	Date
F5 BIG-IP Device Management 11.x Security Technical Implementation Guide	2020-09-28

Details

Check Text ( C-18606r290697_chk )
Verify the BIG-IP appliance is configured to limit the number of concurrent sessions to 10 or an organization-defined number. Navigate to the BIG-IP System manager >> System >> Preferences. Set "System Settings:" to "Advanced". Verify "Maximum HTTP Connections to Configuration Utility" is set to the organization-defined number of concurrent sessions. If neither of these configurations is present, this is a finding.

Check Text ( C-18606r290697_chk )

Verify the BIG-IP appliance is configured to limit the number of concurrent sessions to 10 or an organization-defined number.

Navigate to the BIG-IP System manager >> System >> Preferences.

Set "System Settings:" to "Advanced".

Verify "Maximum HTTP Connections to Configuration Utility" is set to the organization-defined number of concurrent sessions.

If neither of these configurations is present, this is a finding.

Fix Text (F-18604r290698_fix)
Configure the BIG-IP appliance either to limit the number of concurrent sessions to 10 or an organization-defined number.