Junos OS: User-defined ARP Policer isn't applied on Aggregated Ethernet (AE) interface until firewall process is restarted (Juniper Networks Junos OS)
En bref
- Source
- NVD
- EPSS
- EPSS 0.26 % · centile 18 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- juniper
- Statut NVD
- Modified
Description
When user-defined ARP Policer is configured and applied on one or more Aggregated Ethernet (AE) interface units, a Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability between the Device Control Daemon (DCD) and firewall process (dfwd) daemons of Juniper Networks Junos OS allows an attacker to bypass the user-defined ARP Policer. In this particular case the User ARP policer is replaced with default ARP policer. To review the desired ARP Policers and actual state one can run the command "show interfaces <> extensive" and review the output. See further details below. An example output is: show interfaces extensive | match policer Policer: Input: __default_arp_policer__ <<< incorrect if user ARP Policer was applied on an AE interface and the default ARP Policer is displayed Policer: Input: jtac-arp-ae5.317-inet-arp <<< correct if user ARP Policer was applied on an AE interface For all platforms, except SRX Series: This issue affects Juniper Networks Junos OS: All versions 5.6R1 and all later versions prior to 18.4 versions prior to 18.4R2-S9, 18.4R3-S9 with the exception of 15.1 versions 15.1R7-S10 and later versions; 19.4 versions prior to 19.4R3-S3; 20.1 versions prior to 20.1R3; 20.2 versions prior to 20.2R3-S2; 20.3 version 20.3R1 and later versions; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R2; This issue does not affect Juniper Networks Junos OS versions prior to 5.6R1. On SRX Series this issue affects Juniper Networks Junos OS: 18.4 versions prior to 18.4R2-S9, 18.4R3-S9; 19.4 versions prior to 19.4R3-S4; 20.1 versions prior to 20.1R3; 20.2 versions prior to 20.2R3-S2; 20.3 version 20.3R1 and later versions; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R2. This issue does not affect 18.4 versions prior to 18.4R1 on SRX Series. This issue does not affect Junos OS Evolved.
Faiblesses (CWE)
- CWE-367 — Situation de compétition TOCTOU
Références
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 6.5 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | juniper |
| CVSS 3.1 | MEDIUM 6.5 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · sirt@juniper.net (Secondary) |
| CVSS 3.1 | MEDIUM 5.3 | CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | LOW 2.9 | AV:A/AC:M/Au:N/C:N/I:N/A:P | NVD · nvd@nist.gov (Primary) |
Références européennes
- ENISA EUVD · EUVD-2021-2908
- GCVE · GCVE-0-2021-0289
Avis du CERT-FR
- CERTFR-2021-AVI-526 — Multiples vulnérabilités les produits Juniper · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:*≥ 5.7 < 15.1cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:*≥ 15.2 < 18.4cpe:2.3:o:juniper:junos:5.6:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r1-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r1-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r1-s3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r1-s4:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r1-s5:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r1-s6:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r1-s7:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r2-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r2-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r2-s3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r2-s4:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r2-s5:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r2-s6:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r2-s7:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r2-s8:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r3-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r3-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r3-s3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r3-s4:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r3-s5:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r3-s6:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r3-s7:*:*:*:*:*:*cpe:2.3:o:juniper:junos:18.4:r3-s8:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.4:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.4:r1-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.4:r1-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.4:r1-s3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.4:r2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.4:r2-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.4:r2-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.4:r2-s3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.4:r3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:19.4:r3-s1:*:*:*:*:*:*- +85 autres
Produits affectés
| Produit | Versions |
|---|---|
| Juniper Networks · Junos OS | unaffected unspecified < 5.6R1 ; affected 5.6R1 < 5.6* ; affected 15.1 < 15.1R7-S10 ; affected 16.1R1 < 16.1* ; affected 16.2R1 < 16.2* ; affected 17.1R1 < 17.1* |
| Juniper Networks · Junos OS | affected 18.4 < 18.4R2-S9, 18.4R3-S9 ; affected 19.4 < 19.4R3-S3 ; affected 20.1 < 20.1R3 ; unaffected 20.2 < 20.2R3-S2 ; affected 20.3R1 < 20.3* ; affected 20.4 < 20.4R3 |
| Juniper Networks · Junos OS Evolved | unaffected Any |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |