CVE-2024-39522

11.07.2024, 16:15

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:



  *  22.3-EVO versions before 22.3R2-EVO,
  *  22.4-EVO versions before 22.4R1-S1-EVO, 22.4R2-EVO.

OS Command Injection

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	NIST	7.8 HIGH	LOCAL	LOW	LOW	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
juniper	CNA	7.8 HIGH	LOCAL	LOW	LOW	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA-ADP	ADP	---				---
CVE	ADP	---				---

Base Score

CVSS 3.x

EPSS Score

Percentile: 41%

Vendor	Product	Version
juniper	junos_os_evolved	22.3r2 < 𝑥 < 22.3r2
juniper	junos_os_evolved	22.4r2 < 𝑥 < 22.4r2
juniper	junos_os_evolved	22.4r1-s2 < 𝑥 < 22.4r1-s2
juniper	junos_os_evolved	22.3
juniper	junos_os_evolved	22.3:r1
juniper	junos_os_evolved	22.3:r1-s1
juniper	junos_os_evolved	22.3:r1-s2
juniper	junos_os_evolved	22.4
juniper	junos_os_evolved	22.4:r1

𝑥

= Vulnerable software versions

Common Weakness Enumeration

CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
The software constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.

References

https://supportportal.juniper.net/JSA82975