CVE-2023-44194

HIGH

Junos OS Unauthenticated Privilege Escalation via Improper Directory Permissions

Title source: llm
STIX 2.1

Description

An Incorrect Default Permissions vulnerability in Juniper Networks Junos OS allows an unauthenticated attacker with local access to the device to create a backdoor with root privileges. The issue is caused by improper directory permissions on a certain system directory, allowing an attacker with access to this directory to create a backdoor with root privileges. This issue affects Juniper Networks Junos OS: * All versions prior to 20.4R3-S5; * 21.1 versions prior to 21.1R3-S4; * 21.2 versions prior to 21.2R3-S4; * 21.3 versions prior to 21.3R3-S3; * 21.4 versions prior to 21.4R3-S1.

References (1)

Core 1
Core References
Vendor Advisory vendor-advisory
https://supportportal.juniper.net/JSA73158

Scores

CVSS v3 8.4
EPSS 0.0003
EPSS Percentile 9.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-276
Status published
Products (6)
juniper/junos 20.4 (11 CPE variants)
juniper/junos 21.1 (10 CPE variants)
juniper/junos 21.2 (11 CPE variants)
juniper/junos 21.3 (9 CPE variants)
juniper/junos 21.4 (8 CPE variants)
juniper/junos < 20.4
Published Oct 13, 2023
Tracked Since Feb 18, 2026