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The Nokia router must be configured to drop all fragmented Internet Control Message Protocol (ICMP) packets destined to itself.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-283891NOKI-RT-000760SV-283891r1203922_ruleCCI-001097medium
Description
Fragmented ICMP packets can be generated by hackers for denial-of-service attacks such as Ping O' Death and Teardrop. It is imperative that all fragmented ICMP packets are dropped.
STIGDate
Nokia Service Router OS 25.x Router Security Technical Implementation Guide2026-06-15

Related Frameworks

1 mapping across 5 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (18) 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.

CFG-02Secure Baseline Configurations
1.00
CRY-01Use of Cryptographic Controls
1.00
CRY-01.1Alternate Physical Protection
1.00
CRY-03Transmission Confidentiality
1.00
CRY-04Transmission Integrity
1.00
CRY-05Encrypting Data At Rest
1.00
DCH-01Data Protection
1.00
IAC-21Least Privilege
1.00
MON-01Continuous Monitoring
1.00
MON-01.1Intrusion Detection & Prevention Systems (IDS & IPS)
1.00

+8 more (top 10 by confidence shown)

NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (10) 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.

CM-6Configuration Settings
1.00
SC-24Fail in Known State
1.00
SC-47Alternate Communications Paths
1.00
SC-5Denial-of-service Protection
1.00
SC-7Boundary Protection
1.00
SC-7(11)Restrict Incoming Communications Traffic
1.00
SC-7(29)Separate Subnets to Isolate Functions
1.00
SC-7(5)Deny by Default — Allow by Exception
1.00
SI-4System Monitoring
1.00
SI-4(11)Analyze Communications Traffic Anomalies
1.00
NIST 800-1710 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (3) 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.

3.13.1
1.00
3.13.2
1.00
3.13.5
1.00
CCI1 mapping
CCI-001097
1.00
NIST CSF 2.00 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (5) 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.

DE.CM-01
1.00
PR.DS-01
1.00
PR.DS-02
1.00
PR.DS-10
1.00
PR.IR-01
1.00

Who does this work

15 NICE work roles and 9 EC-Council certifications.

This is an inference across published mappings, not a single claim by anyone. This check maps to a control, which maps to a Cybersecurity Framework outcome, which NIST assigns to the work roles below. EC-Council separately maps its certifications to those same roles.

A certification prepares someone for a role. It is not evidence that a holder is qualified, and neither NIST nor EC-Council has stated that any certification here addresses this check.

Work-role assignments published by NIST (NICE Framework Components 2.2.0 and the CSF 2.0 OLIR crosswalk). Certification mappings published by EC-Council.

Details

Check Text (C-283891r1203922_chk)

Review the access control list (ACL) or filter for the router receive path. Review the CPM filter to verify the router is configured to drop all fragmented ICMP packets destined to itself using the example below: - show system security cpm-filter ip-filter entry 10 CPM IP Filter Entry Entry Id : 10 Description : (Not Specified) ------------------------------------------------------------------------------- Filter Entry Match Criteria : ------------------------------------------------------------------------------- Log Id : n/a Src. IP : n/a Src. Port : n/a Dst. IP : n/a Dest. Port : n/a Protocol : icmp Dscp : Undefined ICMP Type : Undefined ICMP Code : Undefined Fragment : True Option-present : Off IP-Option : n/a Multiple Option : Off TCP-syn : Off TCP-ack : Off Action : Drop Match Router ID : n/a Dropped pkts : 0 Forwarded pkts : 0 If the router is not configured with a receive-path filter to drop all fragmented ICMP packets, this is a finding.

Fix Text (F-88361r1203921_fix)

Configure the CPM filter to drop all fragmented ICMP packets destined to itself, as shown in the example below: - configure system security cpm-filter - config>sys>security>cpm-filter# default-action accept - config>sys>security>cpm-filter# ip-filter - config>sys>sec>cpm>ip-filter# entry 10 create - cfg>sys>sec>cpm>ip-filter>entry# match protocol "icmp" - cfg>sys>sec>cpm>ip-filter>entry>match# fragment true - cfg>sys>sec>cpm>ip-filter>entry>match# exit - cfg>sys>sec>cpm>ip-filter>entry# action drop - cfg>sys>sec>cpm>ip-filter>entry# exit - config>sys>sec>cpm>ip-filter# no shutdown - config>sys>sec>cpm>ip-filter# exit - config>sys>security>cpm-filter# exit all