id: "SC-07(10)" title: "Prevent Exfiltration" family: "SC" family_name: "System and Communications Protection" sort_id: "sc-07.10" priority: "P1" implementation_level: "system" parent: "SC-07" enhancement: True
Prevent the exfiltration of information; and
Conduct exfiltration tests {{ insert: param, sc-07.10_odp }}.
Guidance
Prevention of exfiltration applies to both the intentional and unintentional exfiltration of information. Techniques used to prevent the exfiltration of information from systems may be implemented at internal endpoints, external boundaries, and across managed interfaces and include adherence to protocol formats, monitoring for beaconing activity from systems, disconnecting external network interfaces except when explicitly needed, employing traffic profile analysis to detect deviations from the volume and types of traffic expected, call backs to command and control centers, conducting penetration testing, monitoring for steganography, disassembling and reassembling packet headers, and using data loss and data leakage prevention tools. Devices that enforce strict adherence to protocol formats include deep packet inspection firewalls and Extensible Markup Language (XML) gateways. The devices verify adherence to protocol formats and specifications at the application layer and identify vulnerabilities that cannot be detected by devices that operate at the network or transport layers. The prevention of exfiltration is similar to data loss prevention or data leakage prevention and is closely associated with cross-domain solutions and system guards that enforce information flow requirements.
Assessment Objective: the exfiltration of information is prevented;
Assessment Objective: exfiltration tests are conducted {{ insert: param, sc-07.10_odp }}.
System and communications protection policy
procedures addressing boundary protection
system design documentation
system configuration settings and associated documentation
system audit records
system security plan
other relevant documents or records
System/network administrators
organizational personnel with information security responsibilities
organizational personnel with boundary protection responsibilities
Mechanisms implementing boundary protection capabilities that prevent the unauthorized exfiltration of information across managed interfaces