Details

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.

Solution

Configure the BIG-IP appliance to terminate all sessions and network connections when nonlocal device maintenance is completed.

Supportive Information

The following resource is also helpful.

• https://dl.dod.cyber.mil/wp-content/uploads/stigs/zip/U_F5_BIG-IP_11-x_Y20M10_STIG.zip

This security hardening control applies to the following category of controls within NIST 800-53: Maintenance.This control applies to the following type of system F5.

References

• 800-53|MA-4e.
• CAT|II
• CCI|CCI-000879
• Rule-ID|SV-217408r557520_rule
• STIG-ID|F5BI-DM-000137
• STIG-Legacy|SV-74595
• STIG-Legacy|V-60165
• Vuln-ID|V-217408

Source

• Tenable.com/audits