PT-2024-5534 · Juniper Networks · Junos Evolved

Published

2024-07-10

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Updated

2024-09-23

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CVE-2024-39521

CVSS v4.0

8.5

High

VectorAV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Name of the Vulnerable Software and Affected Versions Junos OS Evolved versions 21.1R1-EVO through 21.2R3-S8-EVO Junos OS Evolved versions prior to 21.4R3-S7-EVO Junos OS Evolved versions prior to 22.1R3-S6-EVO Junos OS Evolved versions prior to 22.2R3-EVO Junos OS Evolved versions prior to 22.3R2-EVO
Description An Improper Neutralization of Special Elements issue 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.
Recommendations For versions 21.1R1-EVO through 21.2R3-S8-EVO, update to version 21.2R3-S8-EVO or later. For versions prior to 21.4R3-S7-EVO, update to version 21.4R3-S7-EVO or later. For versions prior to 22.1R3-S6-EVO, update to version 22.1R3-S6-EVO or later. For versions prior to 22.2R3-EVO, update to version 22.2R3-EVO or later. For versions prior to 22.3R2-EVO, update to version 22.3R2-EVO or later. As a temporary workaround, consider restricting access to the Junos OS Evolved CLI to minimize the risk of exploitation.

Fix

OS Command Injection

Weakness Enumeration

CWE-78

Related Identifiers

BDU:2024-06200
CVE-2024-39521

Affected Products

Junos Evolved