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The SEL-2740S -must be configured to limit excess bandwidth and denial of service (DoS) attacks.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-92315SELS-SW-000050SV-102403r1_ruleCCI-001095medium
Description
Denial of service is a condition when a resource is not available for legitimate users. Packet flooding DDoS attacks are referred to as volumetric attacks and have the objective of overloading a network or circuit to deny or seriously degrade performance, which denies access to the services that normally traverse the network or circuit. Volumetric attacks have become relatively easy to launch by using readily available tools such as Low Orbit Ion Cannon or by using botnets. Measures to mitigate the effects of a successful volumetric attack must be taken to ensure that sufficient capacity is available for mission-critical traffic. Managing capacity may include, for example, establishing selected network usage priorities or quotas and enforcing them using rate limiting, Quality of Service (QoS), or other resource reservation control methods. These measures may also mitigate the effects of sudden decreases in network capacity that are the result of accidental or intentional physical damage to telecommunications facilities (such as cable cuts or weather-related outages).
STIGDate
SEL-2740S L2S Security Technical Implementation Guide2019-05-06

Related Frameworks

1 mapping across 4 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (2) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

CAP-02Resource Priority
0.50
CAP-03Capacity Planning
0.50
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (13) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AC-17(10)Authenticate Remote Commands
1.00
AC-17(9)Disconnect or Disable Access
1.00
AC-3Access Enforcement
1.00
AC-4Information Flow Enforcement
1.00
AU-3Content of Audit Records
1.00
CM-6Configuration Settings
1.00
CM-7Least Functionality
1.00
CM-7(2)Prevent Program Execution
1.00
SC-47Alternate Communications Paths
1.00
SC-5Denial-of-service Protection
1.00

+3 more (top 10 by confidence shown)

CCI1 mapping
CCI-001095
1.00
NIST CSF 2.00 mappings

No source states a mapping between these directly.

Also reachable in 4 hops (1) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

PR.IR-04
0.50

Details

Check Text (C-102403r1_chk)

Review the SEL-2740S to ensure that the meter rules and priorities are in place to ensure mission-critical traffic will not be impacted by increased traffic or bandwidth issues. If the SEL-2740S is not configured with meters and priorities necessary for mission-critical packets, this is a finding.

Fix Text (F-98553r1_fix)

Add a flow meter rule to ensure mission-critical traffic will not be impacted. For adding an SEL-2740S Flow Meter, do the following: 1. Log in to OTSDN Controller using Permission Level 3. 2. Under "Meter Entry" General Settings, select "Meter ID", "Measurement Type", and "Burst Size". 3. Add meter rule to SEL-2740S Flow Rules that require monitoring.