Joint task force transformation initiative
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- SC-4 INFORMATION IN SHARED RESOURCES
- P1 LOW Not Selected
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P1 | LOW Not Selected | MOD SC-4 | HIGH SC-4 |
SC-5 DENIAL OF SERVICE PROTECTION
Control: The information system protects against or limits the effects of the following types of denial of service attacks: [Assignment: organization-defined types of denial of service attacks or references to sources for such information] by employing [Assignment: organization-defined security safeguards].
Supplemental Guidance: A variety of technologies exist to limit, or in some cases, eliminate the effects of denial of service attacks. For example, boundary protection devices can filter certain types of packets to protect information system components on internal organizational networks from being directly affected by denial of service attacks. Employing increased capacity and bandwidth combined with service redundancy may also reduce the susceptibility to denial of service attacks. Related controls: SC-6, SC-7.
Control Enhancements:
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denial of service protection | restrict internal users
The information system restricts the ability of individuals to launch [Assignment: organization-defined denial of service attacks] against other information systems.
Supplemental Guidance: Restricting the ability of individuals to launch denial of service attacks requires that the mechanisms used for such attacks are unavailable. Individuals of concern can include, for example, hostile insiders or external adversaries that have successfully breached the information system and are using the system as a platform to launch cyber attacks on third parties. Organizations can restrict the ability of individuals to connect and transmit arbitrary information on the transport medium (i.e., network, wireless spectrum). Organizations can also limit the ability of individuals to use excessive information system resources. Protection against individuals having the ability to launch denial of service attacks may be implemented on specific information systems or on boundary devices prohibiting egress to potential target systems.
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denial of service protection | excess capacity / bandwidth / redundancy
The information system manages excess capacity, bandwidth, or other redundancy to limit the effects of information flooding denial of service attacks.
Supplemental Guidance: Managing excess capacity ensures that sufficient capacity is available to counter flooding attacks. Managing excess capacity may include, for example, establishing selected usage priorities, quotas, or partitioning.
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denial of service protection | detection / monitoring
The organization:
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Employs [Assignment: organization-defined monitoring tools] to detect indicators of denial of service attacks against the information system; and -
Monitors [Assignment: organization-defined information system resources] to determine if sufficient resources exist to prevent effective denial of service attacks.
Supplemental Guidance: Organizations consider utilization and capacity of information system resources when managing risk from denial of service due to malicious attacks. Denial of service attacks can originate from external or internal sources. Information system resources sensitive to denial of service include, for example, physical disk storage, memory, and CPU cycles. Common safeguards to prevent denial of service attacks related to storage utilization and capacity include, for example, instituting disk quotas, configuring information systems to automatically alert administrators when specific storage capacity thresholds are reached, using file compression technologies to maximize available storage space, and imposing separate partitions for system and user data. Related controls: CA-7, SI-4.
References: None.
Priority and Baseline Allocation:
- Directory: publications
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publications -> Sa michelson, 2011: Impact of Sea-Spray on the Atmospheric Surface Layer. Bound. Layer Meteor., 140 ( 3 ), 361-381, doi: 10. 1007/s10546-011-9617-1, issn: Jun-14, ids: 807TW, sep 2011 Bao, jw, cw fairall, sa michelsonDownload 5.8 Mb.
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