EX4300 Series: When a firewall filter is applied to a loopback interface, other firewall filters for multicast traffic may fail (Juniper Networks Junos OS)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.97 % · percentile 62 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- juniper
- NVD status
- Modified
Description
On EX4300 Series switches with TCAM optimization enabled, incoming multicast traffic matches an implicit loopback filter rule first, since it has high priority. This rule is meant for reserved multicast addresses 224.0.0.x, but incorrectly matches on 224.x.x.x. Due to this bug, when a firewall filter is applied on the loopback interface, other firewall filters might stop working for multicast traffic. The command 'show firewall filter' can be used to confirm whether the filter is working. This issue only affects the EX4300 switch. No other products or platforms are affected by this vulnerability. This issue affects: Juniper Networks Junos OS: 14.1X53 versions prior to 14.1X53-D51, 14.1X53-D115 on EX4300 Series; 17.1 versions prior to 17.1R3 on EX4300 Series; 17.2 versions prior to 17.2R3-S2 on EX4300 Series; 17.3 versions prior to 17.3R3-S3 on EX4300 Series; 17.4 versions prior to 17.4R2-S5, 17.4R3 on EX4300 Series; 18.1 versions prior to 18.1R3-S1 on EX4300 Series; 18.2 versions prior to 18.2R2 on EX4300 Series; 18.3 versions prior to 18.3R2 on EX4300 Series.
Weaknesses (CWE)
- CWE-200 — Exposure of Sensitive Information to an Unauthorized Actor
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.0 | MEDIUM 5.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N | juniper |
| CVSS 3.1 | MEDIUM 5.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N | NVD · nvd@nist.gov (Primary) |
| CVSS 3.0 | MEDIUM 5.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N | NVD · sirt@juniper.net (Secondary) |
| CVSS 2.0 | MEDIUM 5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2019-0855
- GCVE · GCVE-0-2019-0048
CERT-FR advisories
- CERTFR-2019-AVI-325 — Multiples vulnérabilités dans les produits Juniper · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:juniper:junos:14.1x53:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos:14.1x53:d10:*:*:*:*:*:*cpe:2.3:o:juniper:junos:14.1x53:d15:*:*:*:*:*:*cpe:2.3:o:juniper:junos:14.1x53:d16:*:*:*:*:*:*cpe:2.3:o:juniper:junos:14.1x53:d25:*:*:*:*:*:*cpe:2.3:o:juniper:junos:14.1x53:d26:*:*:*:*:*:*cpe:2.3:o:juniper:junos:14.1x53:d27:*:*:*:*:*:*cpe:2.3:o:juniper:junos:14.1x53:d30:*:*:*:*:*:*cpe:2.3:o:juniper:junos:14.1x53:d35:*:*:*:*:*:*cpe:2.3:o:juniper:junos:14.1x53:d40:*:*:*:*:*:*cpe:2.3:o:juniper:junos:14.1x53:d45:*:*:*:*:*:*cpe:2.3:o:juniper:junos:14.1x53:d48:*:*:*:*:*:*cpe:2.3:o:juniper:junos:14.1x53:d49:*:*:*:*:*:*cpe:2.3:o:juniper:junos:17.1:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos:17.1:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:17.1:r2-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:17.1:r2-s10:*:*:*:*:*:*cpe:2.3:o:juniper:junos:17.1:r2-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:17.1:r2-s3:*:*:*:*:*:*cpe:2.3:o:juniper:junos:17.1:r2-s4:*:*:*:*:*:*cpe:2.3:o:juniper:junos:17.1:r2-s5:*:*:*:*:*:*cpe:2.3:o:juniper:junos:17.1:r2-s6:*:*:*:*:*:*cpe:2.3:o:juniper:junos:17.1:r2-s7:*:*:*:*:*:*cpe:2.3:o:juniper:junos:17.2:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos:17.2:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:17.2:r1-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:17.2:r1-s4:*:*:*:*:*:*cpe:2.3:o:juniper:junos:17.2:r1-s7:*:*:*:*:*:*cpe:2.3:o:juniper:junos:17.2:r2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:17.2:r2-s6:*:*:*:*:*:*cpe:2.3:o:juniper:junos:17.2:r2-s7:*:*:*:*:*:*cpe:2.3:o:juniper:junos:17.2:r3-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:17.3:-:*:*:*:*:*:*cpe:2.3:o:juniper:junos:17.3:r1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:17.3:r2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:17.3:r2-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:17.3:r2-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:17.3:r3-s1:*:*:*:*:*:*cpe:2.3:o:juniper:junos:17.3:r3-s2:*:*:*:*:*:*cpe:2.3:o:juniper:junos:17.4:-:*:*:*:*:*:*- +28 more
Affected products
| Product | Versions |
|---|---|
| Juniper Networks · Junos OS | affected 14.1X53 versions prior to 14.1X53-D51 and 14.1X53-D115 on EX4300 Series ; affected 17.1 versions prior to 17.1R3 on EX4300 Series ; affected 17.2 versions prior to 17.2R3-S2 on EX4300 Series ; affected 17.3 versions prior to 17.3R3-S3 on EX4300 Series ; affected 17.4 versions prior to 17.4R2-S5 and 17.4R3 on EX4300 Series ; affected 18.1 versions prior to 18.1R3-S1 on EX4300 Series |
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 |