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  1. Frameworks
  2. >SP 800-53
  3. >System And Communications Protection
  4. >SP800-53-SC-31(2)
SP800-53-SC-31(2)Active

Maximum Bandwidth

Statement

Reduce the maximum bandwidth for identified covert one or more: storage; timing channels to values.

Location

Control Family
System and Communications Protection

Control Details

Identifier
SP800-53-SC-31(2)
Family
SC
Parent Control
SP800-53-SC-31

Organisation-Defined Parameters

sc-31.02_odp.01
one or more: storage; timing
sc-31.02_odp.02
values

Supplemental Guidance

The complete elimination of covert channels, especially covert timing channels, is usually not possible without significant performance impacts.

Assessment Objective

the maximum bandwidth for identified covert one or more: storage; timing channels is reduced to values.

No cross-framework mappings available

← Back to System and Communications Protection
System and Communications Protection162 controls
SP800-53-SC-1Policy and ProceduresSP800-53-SC-2Separation of System and User FunctionalitySP800-53-SC-2(1)Interfaces for Non-privileged UsersSP800-53-SC-2(2)DisassociabilitySP800-53-SC-3Security Function IsolationSP800-53-SC-3(1)Hardware SeparationSP800-53-SC-3(2)Access and Flow Control FunctionsSP800-53-SC-3(3)Minimize Nonsecurity FunctionalitySP800-53-SC-3(4)Module Coupling and CohesivenessSP800-53-SC-3(5)Layered StructuresSP800-53-SC-4Information in Shared System ResourcesSP800-53-SC-4(1)Security LevelsSP800-53-SC-4(2)Multilevel or Periods ProcessingSP800-53-SC-5Denial-of-service ProtectionSP800-53-SC-5(1)Restrict Ability to Attack Other SystemsSP800-53-SC-5(2)Capacity, Bandwidth, and RedundancySP800-53-SC-5(3)Detection and MonitoringSP800-53-SC-6Resource AvailabilitySP800-53-SC-7Boundary ProtectionSP800-53-SC-7(1)Physically Separated SubnetworksSP800-53-SC-7(2)Public AccessSP800-53-SC-7(3)Access PointsSP800-53-SC-7(4)External Telecommunications ServicesSP800-53-SC-7(5)Deny by Default — Allow by ExceptionSP800-53-SC-7(6)Response to Recognized FailuresSP800-53-SC-7(7)Split Tunneling for Remote DevicesSP800-53-SC-7(8)Route Traffic to Authenticated Proxy ServersSP800-53-SC-7(9)Restrict Threatening Outgoing Communications TrafficSP800-53-SC-7(10)Prevent ExfiltrationSP800-53-SC-7(11)Restrict Incoming Communications TrafficSP800-53-SC-7(12)Host-based ProtectionSP800-53-SC-7(13)Isolation of Security Tools, Mechanisms, and Support ComponentsSP800-53-SC-7(14)Protect Against Unauthorized Physical ConnectionsSP800-53-SC-7(15)Networked Privileged AccessesSP800-53-SC-7(16)Prevent Discovery of System ComponentsSP800-53-SC-7(17)Automated Enforcement of Protocol FormatsSP800-53-SC-7(18)Fail SecureSP800-53-SC-7(19)Block Communication from Non-organizationally Configured HostsSP800-53-SC-7(20)Dynamic Isolation and SegregationSP800-53-SC-7(21)Isolation of System ComponentsSP800-53-SC-7(22)Separate Subnets for Connecting to Different Security DomainsSP800-53-SC-7(23)Disable Sender Feedback on Protocol Validation FailureSP800-53-SC-7(24)Personally Identifiable InformationSP800-53-SC-7(25)Unclassified National Security System ConnectionsSP800-53-SC-7(26)Classified National Security System ConnectionsSP800-53-SC-7(27)Unclassified Non-national Security System ConnectionsSP800-53-SC-7(28)Connections to Public NetworksSP800-53-SC-7(29)Separate Subnets to Isolate FunctionsSP800-53-SC-8Transmission Confidentiality and IntegritySP800-53-SC-8(1)Cryptographic ProtectionSP800-53-SC-8(2)Pre- and Post-transmission HandlingSP800-53-SC-8(3)Cryptographic Protection for Message ExternalsSP800-53-SC-8(4)Conceal or Randomize CommunicationsSP800-53-SC-8(5)Protected Distribution SystemSP800-53-SC-9Transmission ConfidentialitySP800-53-SC-10Network DisconnectSP800-53-SC-11Trusted PathSP800-53-SC-11(1)Irrefutable Communications PathSP800-53-SC-12Cryptographic Key Establishment and ManagementSP800-53-SC-12(1)AvailabilitySP800-53-SC-12(2)Symmetric KeysSP800-53-SC-12(3)Asymmetric KeysSP800-53-SC-12(4)PKI CertificatesSP800-53-SC-12(5)PKI Certificates / Hardware TokensSP800-53-SC-12(6)Physical Control of KeysSP800-53-SC-13Cryptographic ProtectionSP800-53-SC-13(1)FIPS-validated CryptographySP800-53-SC-13(2)NSA-approved CryptographySP800-53-SC-13(3)Individuals Without Formal Access ApprovalsSP800-53-SC-13(4)Digital SignaturesSP800-53-SC-14Public Access ProtectionsSP800-53-SC-15Collaborative Computing Devices and ApplicationsSP800-53-SC-15(1)Physical or Logical DisconnectSP800-53-SC-15(2)Blocking Inbound and Outbound Communications TrafficSP800-53-SC-15(3)Disabling and Removal in Secure Work AreasSP800-53-SC-15(4)Explicitly Indicate Current ParticipantsSP800-53-SC-16Transmission of Security and Privacy AttributesSP800-53-SC-16(1)Integrity VerificationSP800-53-SC-16(2)Anti-spoofing MechanismsSP800-53-SC-16(3)Cryptographic BindingSP800-53-SC-17Public Key Infrastructure CertificatesSP800-53-SC-18Mobile CodeSP800-53-SC-18(1)Identify Unacceptable Code and Take Corrective ActionsSP800-53-SC-18(2)Acquisition, Development, and UseSP800-53-SC-18(3)Prevent Downloading and ExecutionSP800-53-SC-18(4)Prevent Automatic ExecutionSP800-53-SC-18(5)Allow Execution Only in Confined EnvironmentsSP800-53-SC-19Voice Over Internet ProtocolSP800-53-SC-20Secure Name/Address Resolution Service (Authoritative Source)SP800-53-SC-20(1)Child SubspacesSP800-53-SC-20(2)Data Origin and IntegritySP800-53-SC-21Secure Name/Address Resolution Service (Recursive or Caching Resolver)SP800-53-SC-21(1)Data Origin and IntegritySP800-53-SC-22Architecture and Provisioning for Name/Address Resolution ServiceSP800-53-SC-23Session AuthenticitySP800-53-SC-23(1)Invalidate Session Identifiers at LogoutSP800-53-SC-23(2)User-initiated Logouts and Message DisplaysSP800-53-SC-23(3)Unique System-generated Session IdentifiersSP800-53-SC-23(4)Unique Session Identifiers with RandomizationSP800-53-SC-23(5)Allowed Certificate AuthoritiesSP800-53-SC-24Fail in Known StateSP800-53-SC-25Thin NodesSP800-53-SC-26DecoysSP800-53-SC-26(1)Detection of Malicious CodeSP800-53-SC-27Platform-independent ApplicationsSP800-53-SC-28Protection of Information at RestSP800-53-SC-28(1)Cryptographic ProtectionSP800-53-SC-28(2)Offline StorageSP800-53-SC-28(3)Cryptographic KeysSP800-53-SC-29HeterogeneitySP800-53-SC-29(1)Virtualization TechniquesSP800-53-SC-30Concealment and MisdirectionSP800-53-SC-30(1)Virtualization TechniquesSP800-53-SC-30(2)RandomnessSP800-53-SC-30(3)Change Processing and Storage LocationsSP800-53-SC-30(4)Misleading InformationSP800-53-SC-30(5)Concealment of System ComponentsSP800-53-SC-31Covert Channel AnalysisSP800-53-SC-31(1)Test Covert Channels for ExploitabilitySP800-53-SC-31(2)Maximum BandwidthSP800-53-SC-31(3)Measure Bandwidth in Operational EnvironmentsSP800-53-SC-32System PartitioningSP800-53-SC-32(1)Separate Physical Domains for Privileged FunctionsSP800-53-SC-33Transmission Preparation IntegritySP800-53-SC-34Non-modifiable Executable ProgramsSP800-53-SC-34(1)No Writable StorageSP800-53-SC-34(2)Integrity Protection on Read-only MediaSP800-53-SC-34(3)Hardware-based ProtectionSP800-53-SC-35External Malicious Code IdentificationSP800-53-SC-36Distributed Processing and StorageSP800-53-SC-36(1)Polling TechniquesSP800-53-SC-36(2)SynchronizationSP800-53-SC-37Out-of-band ChannelsSP800-53-SC-37(1)Ensure Delivery and TransmissionSP800-53-SC-38Operations SecuritySP800-53-SC-39Process IsolationSP800-53-SC-39(1)Hardware SeparationSP800-53-SC-39(2)Separate Execution Domain Per ThreadSP800-53-SC-40Wireless Link ProtectionSP800-53-SC-40(1)Electromagnetic InterferenceSP800-53-SC-40(2)Reduce Detection PotentialSP800-53-SC-40(3)Imitative or Manipulative Communications DeceptionSP800-53-SC-40(4)Signal Parameter IdentificationSP800-53-SC-41Port and I/O Device AccessSP800-53-SC-42Sensor Capability and DataSP800-53-SC-42(1)Reporting to Authorized Individuals or RolesSP800-53-SC-42(2)Authorized UseSP800-53-SC-42(3)Prohibit Use of DevicesSP800-53-SC-42(4)Notice of CollectionSP800-53-SC-42(5)Collection MinimizationSP800-53-SC-43Usage RestrictionsSP800-53-SC-44Detonation ChambersSP800-53-SC-45System Time SynchronizationSP800-53-SC-45(1)Synchronization with Authoritative Time SourceSP800-53-SC-45(2)Secondary Authoritative Time SourceSP800-53-SC-46Cross Domain Policy EnforcementSP800-53-SC-47Alternate Communications PathsSP800-53-SC-48Sensor RelocationSP800-53-SC-48(1)Dynamic Relocation of Sensors or Monitoring CapabilitiesSP800-53-SC-49Hardware-enforced Separation and Policy EnforcementSP800-53-SC-50Software-enforced Separation and Policy EnforcementSP800-53-SC-51Hardware-based Protection