Main Vulnerability Database Vulnerabilities #VU85279

#VU85279 Exposure of resource to wrong sphere in Juniper Junos OS - CVE-2024-21597

Published: January 10, 2024

Vulnerability identifier: #VU85279

Vulnerability risk: Medium

CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

CVE-ID: CVE-2024-21597

CWE-ID: CWE-668

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerable software:
Juniper Junos OS

Software vendor:
Juniper Networks, Inc.

Description

The vulnerability allows a remote non-authenticated attacker to manipulate data.

The vulnerability exists due to exposure of resource to wrong sphere error in the Packet Forwarding Engine (PFE). A remote non-authenticated attacker can 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.

Remediation

Install updates from vendor's website.

External links

https://supportportal.juniper.net/s/article/2024-01-Security-Bulletin-Junos-OS-MX-Series-In-an-AF-scenario-traffic-can-bypass-configured-lo0-firewall-filters-CVE-2024-21597