CVE-2024-30389: Junos OS: EX4300 Series: Firewall filter not blocking egress traffic
First published: Fri Apr 12 2024(Updated: )
An Incorrect Behavior Order vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on EX4300 Series allows an unauthenticated, network-based attacker to cause an integrity impact to networks downstream of the vulnerable device. When an output firewall filter is applied to an interface it doesn't recognize matching packets but permits any traffic. This issue affects Junos OS 21.4 releases from 21.4R1 earlier than 21.4R3-S6. This issue does not affect Junos OS releases earlier than 21.4R1.
Credit: sirt@juniper.net
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Juniper Networks Junos OS | >=21.4R1<21.4R3-S6 | |
| All of | ||
| Any of | ||
| Juniper JUNOS | =21.4-r1 | |
| Juniper JUNOS | =21.4-r1-s1 | |
| Juniper JUNOS | =21.4-r1-s2 | |
| Juniper JUNOS | =21.4-r2 | |
| Juniper JUNOS | =21.4-r2-s1 | |
| Juniper JUNOS | =21.4-r2-s2 | |
| Juniper JUNOS | =21.4-r3 | |
| Juniper JUNOS | =21.4-r3-s1 | |
| Juniper JUNOS | =21.4-r3-s2 | |
| Juniper JUNOS | =21.4-r3-s3 | |
| Juniper JUNOS | =21.4-r3-s4 | |
| Juniper JUNOS | =21.4-r3-s5 | |
| Any of | ||
| Juniper EX4300 | ||
| Juniper ex4300-24p | ||
| Juniper ex4300-24p-s | ||
| Juniper ex4300-24t | ||
| Juniper ex4300-24t-s | ||
| Juniper ex4300-32f | ||
| Juniper ex4300-32f-dc | ||
| Juniper ex4300-32f-s | ||
| Juniper ex4300-48mp | ||
| Juniper ex4300-48mp-s | ||
| Juniper ex4300-48p | ||
| Juniper ex4300-48p-s | ||
| Juniper ex4300-48t | ||
| Juniper ex4300-48t-afi | ||
| Juniper ex4300-48t-dc | ||
| Juniper ex4300-48t-dc-afi | ||
| Juniper ex4300-48t-s |
Remedy
The following software release has been updated to resolve this specific issue: 21.4R3-S6, and all subsequent releases of this branch.
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- agent/remedy
- agent/title
- agent/weakness
- agent/first-publish-date
- agent/references
- agent/type
- collector/epss-latest
- source/FIRST
- agent/epss
- agent/author
- agent/description
- collector/mitre-cve
- source/MITRE
- agent/source
- agent/guess-ai
- agent/software-canonical-lookup
- collector/nvd-api
- source/NVD
- agent/last-modified-date
- agent/severity
- agent/tags
- agent/softwarecombine
- agent/event
- vendor/juniper networks
- canonical/juniper networks junos os
- vendor/juniper
- canonical/juniper junos
- version/juniper junos/21.4-r1
- version/juniper junos/21.4-r1-s1
- version/juniper junos/21.4-r1-s2
- version/juniper junos/21.4-r2
- version/juniper junos/21.4-r2-s1
- version/juniper junos/21.4-r2-s2
- version/juniper junos/21.4-r3
- version/juniper junos/21.4-r3-s1
- version/juniper junos/21.4-r3-s2
- version/juniper junos/21.4-r3-s3
- version/juniper junos/21.4-r3-s4
- version/juniper junos/21.4-r3-s5
- canonical/juniper ex4300
- canonical/juniper ex4300-24p
- canonical/juniper ex4300-24p-s
- canonical/juniper ex4300-24t
- canonical/juniper ex4300-24t-s
- canonical/juniper ex4300-32f
- canonical/juniper ex4300-32f-dc
- canonical/juniper ex4300-32f-s
- canonical/juniper ex4300-48mp
- canonical/juniper ex4300-48mp-s
- canonical/juniper ex4300-48p
- canonical/juniper ex4300-48p-s
- canonical/juniper ex4300-48t
- canonical/juniper ex4300-48t-afi
- canonical/juniper ex4300-48t-dc
- canonical/juniper ex4300-48t-dc-afi
- canonical/juniper ex4300-48t-s