CVE-2024-21597

published 2024-01-12

CVE-2024-21597: An Exposure of Resource to Wrong Sphere vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on MX Series allows an…

Priority P3 48 high 7.5 CVSS 3.1

AV N AC L PR N UI N S U C N I H A N

An Exposure of Resource to Wrong Sphere vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on MX Series allows an unauthenticated, network-based attacker to bypass the intended access restrictions.

In an Abstracted Fabric (AF) scenario if routing-instances (RI) are configured, specific valid traffic destined to the device can bypass the configured lo0 firewall filters as it's received in the wrong RI context.

This issue affects Juniper Networks Junos OS on MX Series:

* All versions earlier than 20.4R3-S9;
* 21.2 versions earlier than 21.2R3-S3;
* 21.4 versions earlier than 21.4R3-S5;
* 22.1 versions earlier than 22.1R3;
* 22.2 versions earlier than 22.2R3;
* 22.3 versions earlier than 22.3R2.

Affected

14 ranges

Vendor	Product	Version range	Fixed in
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos	—	—
juniper	junos_os	—	—
juniper	mx_series	—	—
juniper_networks	junos_os	< 20.4R3-S9	20.4R3-S9
juniper_networks	junos_os	>= 21.2 < 21.2R3-S3	21.2R3-S3
juniper_networks	junos_os	>= 21.4 < 21.4R3-S5	21.4R3-S5
juniper_networks	junos_os	>= 22.1 < 22.1R3	22.1R3
juniper_networks	junos_os	>= 22.2 < 22.2R3	22.2R3
juniper_networks	junos_os	>= 22.3 < 22.3R2	22.3R2

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