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The FortiGate device must terminate idle sessions after 10 minutes of inactivity.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-234213FGFW-ND-000270SV-234213r984105_ruleCCI-000879medium
Description
If a device management session or connection remains open after management is completed, it may be hijacked by an attacker and used to compromise or damage the network device. Nonlocal device management and diagnostic activities are those activities conducted by individuals communicating through a network, either an external network (e.g., the internet) or an internal network. In the event the remote node has abnormally terminated or an upstream link from the managed device is down, the management session will be terminated, thereby freeing device resources and eliminating any possibility of an unauthorized user being orphaned to an open idle session of the managed device.
STIGDate
Fortinet FortiGate Firewall NDM Security Technical Implementation Guide2025-11-19

Related Frameworks

1 mapping across 4 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (3) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

MNT-05Remote Maintenance
0.50
MNT-05.1Auditing Remote Maintenance
0.50
MNT-05.2Remote Maintenance Notifications
0.50
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (6) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AC-11Device Lock
1.00
AC-12Session Termination
1.00
CM-6(1)Automated Management, Application, and Verification
1.00
IA-5(13)Expiration of Cached Authenticators
1.00
MA-4Nonlocal Maintenance
1.00
SC-10Network Disconnect
1.00
NIST 800-1710 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (1) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

3.7.5
1.00
CCI1 mapping
CCI-000879
1.00

Details

Check Text (C-234213r984105_chk)

Verify the FortiGate device terminates all network connections when non-local device maintenance is complete. Log in to the FortiGate GUI with Super-Admin privilege. 1. Click System. 2. Click Settings. 3. Go to Administrative Settings. 4. Verify Idle Timeout is configured to 10 minutes. If the idle-timeout value is not 10 minutes, this is a finding. or 1. Open a CLI console, via SSH or available from the GUI. 2. Run the following command: # show full-configuration sys global | grep -i admintimeout The output should be: set admintimeout 10 If the admintimeout parameter is not set to 10 minutes, this is a finding.

Fix Text (F-37363r611827_fix)

To configure the device to terminate all network connections when non-local maintenance is complete: Log in to the FortiGate GUI with Super-Admin privilege. 1. Click System. 2. Click Settings. 3. Go to Administrative Settings. 4. Enter the Idle Timeout value of 10. 5. Click Apply. or 1. Open a CLI console, via SSH or available from the GUI. 2. Run the following command: # config system global # set admintimeout 10 # end