The Arista MSDP router must be configured to limit the amount of source-active messages it accepts on per-peer basis.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
| V-255995 | ARST-RT-000090 | SV-255995r882327_rule | CCI-001368 | low |
| Description | ||||
| To reduce any risk of a denial-of-service (DoS) attack from a rogue or misconfigured MSDP router, the router must be configured to limit the number of source-active messages it accepts from each peer. | ||||
| STIG | Date | |||
| Arista MLS EOS 4.X Router Security Technical Implementation Guide | 2025-02-20 | |||
Related Frameworks
3 paths across 3 frameworks
Related Frameworks
NIST 800-531 mapping
AC-4
1.00
- DISA · V2R2 · disa_xccdf · related
- DISA · 2025-01-23 · disa_cci_list · equivalent
NIST 800-1711 mapping
3.1.3
1.00
- DISA · V2R2 · 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-001368
1.00
- DISA · V2R2 · disa_xccdf · related
Details
Check Text (C-255995r882327_chk)
To verify the MSDP peer and the sa-limit filter is configured, execute the command "show run | sec router msdp".
router msdp
peer 10.1.12.2
sa-limit 500
peer 10.1.55.78
sa-limit 900
If the Arista router is not configured with a peer limit, this is a finding.
Fix Text (F-59614r882326_fix)
Configure the Arista MSDP router to limit the amount of source-active messages it accepts from each peer.
!
router (config) #router msdp
router (config-router-msdp) #peer 10.1.1.5
router (config-router-msdp-peer 10.1.1.5) # sa-limit 500
router (config-router-msdp) #peer 10.1.55.78
router (config-router-msdp-peer 10.1.55.78) # sa-limit 900
router (config-router-msdp-peer 10.1.55.78) # exit