The F5 BIG-IP appliance must be configured to 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-266064 | F5BI-DM-300001 | SV-266064r1024595_rule | CCI-000054 | 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 denial-of-service (DoS) attacks. This requirement addresses concurrent sessions for administrative accounts and does not address concurrent sessions by a single administrator via multiple administrative accounts. Satisfies: SRG-APP-000001-NDM-000200, SRG-APP-000435-NDM-000315 | ||||
| STIG | Date | |||
| F5 BIG-IP TMOS NDM Security Technical Implementation Guide | 2025-06-12 | |||
Details
Check Text (C-266064r1024595_chk)
From the BIG-IP GUI:
1. System.
2. Preferences.
3. Verify that System Settings view is set to Advanced.
4. Verify Maximum HTTP connections to Configuration Utility is set to 10 or an organization-defined number.
From the BIG-IP console, type the following command:
tmsh list sys httpd max-clients
If the device is not configured to limit the number of concurrent sessions to the Configuration Utility to 10 or an organization-defined number, this is a finding.
Fix Text (F-69890r1023442_fix)
From the BIG-IP GUI:
1. System.
2. Preferences.
3. Set System Settings view to Advanced.
4. Maximum HTTP connections to Configuration Utility: enter 10 or an organization-defined number.
5. Update.
From the BIG-IP console, type the following commands:
tmsh modify sys httpd max-clients <10 or an organization-defined number>
tmsh save sys config