The router must be configured to drop all fragmented Internet Control Message Protocol (ICMP) packets destined to itself.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-207134 | SRG-NET-000205-RTR-000002 | SV-207134r604135_rule | CCI-001097 | medium |
| Description | ||||
| Fragmented ICMP packets can be generated by hackers for DoS attacks such as Ping O' Death and Teardrop. It is imperative that all fragmented ICMP packets are dropped. | ||||
| STIG | Date | |||
| Router Security Requirements Guide | 2024-05-28 | |||
Related Frameworks
5 paths across 3 frameworks
Related Frameworks
NIST 800-531 mapping
SC-7
1.00
- DISA · 5 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
NIST 800-1713 mappings
3.13.1
1.00
- DISA · 5 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
- NIST · Rev 2 (Feb 2020, errata Jan 2021) · nist_800_171_app_d · equivalent
3.13.2
1.00
- DISA · 5 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
- NIST · Rev 2 (Feb 2020, errata Jan 2021) · nist_800_171_app_d · equivalent
3.13.5
1.00
- DISA · 5 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
- NIST · Rev 2 (Feb 2020, errata Jan 2021) · nist_800_171_app_d · equivalent
CCI1 mapping
CCI-001097
1.00
- DISA · 5 · disa_xccdf · related
Details
Check Text (C-207134r604135_chk)
Review the access control list (ACL) or filter for the router receive path.
Verify that it will drop all fragmented ICMP packets destined to itself.
If the router is not configured with a receive-path filter to drop all fragmented ICMP packets, this is a finding.
Note: If the platform does not support the receive path filter, verify that all Layer 3 interfaces have an ingress ACL to control what packets are allowed to be destined to the router for processing.
Fix Text (F-7395r382341_fix)
Ensure all routers have their receive path filter configured to drop all fragmented ICMP packets.