CVE-2024-39524

HIGH

Junos OS Evolved Authenticated Privilege Escalation via CLI Command Parameter Injection

Title source: llm

Description

An Improper Neutralization of Special Elements vulnerability in Juniper Networks Junos OS Evolved commands allows a local, authenticated attacker with low privileges to escalate their privileges to 'root' leading to a full compromise of the system. The Junos OS Evolved CLI doesn't properly handle command options in some cases, allowing users which execute specific CLI commands with a crafted set of parameters to escalate their privileges to root on shell level. This issue affects Junos OS Evolved: All versions before 20.4R3-S7-EVO, 21.2-EVO versions before 21.2R3-S8-EVO, 21.4-EVO versions before 21.4R3-S7-EVO, 22.2-EVO versions before 22.2R3-EVO, 22.3-EVO versions before 22.3R2-EVO, 22.4-EVO versions before 22.4R2-EVO.

References (1)

Core 1

Core References

Vendor Advisory vendor-advisory

https://supportportal.juniper.net/JSA82975

Scores

CVSS v3 7.8

EPSS 0.0018

EPSS Percentile 38.9%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-78

Status published

Products (5)

juniper/junos_os_evolved 20.4 (15 CPE variants)

juniper/junos_os_evolved 21.2 (15 CPE variants)

juniper/junos_os_evolved 21.4 (14 CPE variants)

juniper/junos_os_evolved 22.2 (5 CPE variants)

juniper/junos_os_evolved 22.3

Published Jul 11, 2024

Tracked Since Feb 18, 2026