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OpenAdvisories
Medium · 5.4 CVE-2024-39534 EUVD-2024-38060GHSA-mjfx-92v4-6mf3

Junos OS Evolved: Connections to the network and broadcast address accepted

Published Oct 11, 2024 · Updated Oct 11, 2024 · Assigned by juniper

Description

An Incorrect Comparison vulnerability in the local address verification API of Juniper Networks Junos OS Evolved allows an unauthenticated network-adjacent attacker to create sessions or send traffic to the device using the network and broadcast address of the subnet assigned to an interface. This is unintended and unexpected behavior and can allow an attacker to bypass certain compensating controls, such as stateless firewall filters.

This issue affects Junos OS Evolved: 

* All versions before 21.4R3-S8-EVO, 
* 22.2-EVO before 22.2R3-S4-EVO, 
* 22.3-EVO before 22.3R3-S4-EVO, 
* 22.4-EVO before 22.4R3-S3-EVO, 
* 23.2-EVO before 23.2R2-S1-EVO, 
* 23.4-EVO before 23.4R1-S2-EVO, 23.4R2-EVO.

Affected products

VendorProductAffectedFixed
Juniper Networks Junos OS Evolved < 21.4R3-S8-EVO, 22.2-EVO – < 22.2R3-S4-EVO, 22.3-EVO – < 22.3R3-S4-EVO, 22.4-EVO – < 22.4R3-S3-EVO, 23.2-EVO – < 23.2R2-S1-EVO, 23.4-EVO – < 23.4R1-S2-EVO, 23.4R2-EVO 21.4R3-S8-EVO

Advisories 1

References