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

Related Frameworks

2 paths across 2 frameworks

NIST 800-531 mapping

AC-10

1.00

DISA · V1R2 · disa_xccdf · related
DISA · 2025-01-23 · disa_cci_list · equivalent

CCI1 mapping

CCI-000054

1.00

DISA · V1R2 · disa_xccdf · related

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