SC-10: Network Disconnect
Control Family:
Threats Addressed:
Baselines:
- Low
N/A
- Moderate
- SC-10
- High
- SC-10
- Privacy
N/A
- OT Low (SP 800-82r3)
N/A
- OT Moderate (SP 800-82r3)
N/A
- OT High (SP 800-82r3)
N/A
Previous Version:
- NIST Special Publication 800-53 Revision 4:
- SC-10: Network Disconnect
Control Statement
Terminate the network connection associated with a communications session at the end of the session or after [Assignment: organization-defined time period] of inactivity.
Supplemental Guidance
Network disconnect applies to internal and external networks. Terminating network connections associated with specific communications sessions includes de-allocating TCP/IP address or port pairs at the operating system level and de-allocating the networking assignments at the application level if multiple application sessions are using a single operating system-level network connection. Periods of inactivity may be established by organizations and include time periods by type of network access or for specific network accesses.
OT Discussion
Rationale for removing SC-10 from MOD and HIGH baselines: The intent of this control is effectively covered by AC-17 (9) for OT systems.
OT Baseline Rationale
Rationale for adding to Mod, High baselines: The intent of this control is effectively covered by AC-17 (9) for OT systems.