Exposure of resource to wrong sphere in Junos OS - CVE-2024-21597
Published: January 10, 2024
Vulnerability identifier: #VU85279
CSH Severity: Medium
CVSS v4: 6.9 [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]
CVE-ID: CVE-2024-21597
CWE-ID: CWE-668
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
Junos OS
How to mitigate CVE-2024-21597
Install updates from vendor's website.
Junos OS - addressed in versions 20.4R3-S9, 21.2R3-S3, 21.4R3-S5, 22.1R3, 22.2R3, 22.3R2, 22.4R1