CVE-2024-39520CWE-78

Junos OS Evolved: CLI parameter processing issue allows privilege escalation

High · published July 11, 2024

CVSS v4.0
8.5
EPSS
0%
Percentile
15.4
In the wild
Unconfirmed
What it is

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 version before 20.4R3-S6-EVO,

* 21.2-EVO versions before 21.2R3-S4-EVO,

* 21.4-EVO versions before 21.4R3-S6-EVO,

* 22.2-EVO versions before 22.2R2-S1-EVO, 22.2R3-EVO,

* 22.3-EVO versions before 22.3R2-EVO.

The record
Technical detail
CVSS v4.0
8.5 · HIGH
Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00250 · 15.4th percentile
Weakness
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2024-07-11T15:56Z
EPSS history
Timeline
  • 11 JUL 15:56Z
    Junos OS Evolved: CLI parameter processing issue allows privilege escalation
    cvelistv5