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High · 7.8 CVE-2024-39520 EUVD-2024-38046GHSA-gc7h-2w78-ph5w

Junos OS Evolved: CLI parameter processing issue allows privilege escalation

Published Jul 11, 2024 · Updated Aug 2, 2024 · Assigned by juniper

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 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.

Affected products

VendorProductAffectedFixed
Juniper Networks Junos OS Evolved < 20.4R3-S6-EVO, 21.2-EVO – < 21.2R3-S4-EVO, 21.4-EVO – < 21.4R3-S6-EVO, 22.2-EVO – < 22.2R2-S1-EVO, 22.2R3-EVO, 22.3-EVO – < 22.3R2-EVO 20.4R3-S6-EVO

Advisories 1

References