vulnerability
Juniper Junos OS: 2023-10 Security Bulletin: Junos OS: An unauthenticated attacker with local access to the device can create a backdoor with root privileges (JSA73158) (CVE-2023-44194)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:L/Au:N/C:C/I:C/A:C) | Oct 11, 2023 | Oct 12, 2023 | Mar 27, 2026 |
Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
Oct 11, 2023
Added
Oct 12, 2023
Modified
Mar 27, 2026
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.
Solution
juniper-junos-os-upgrade-latest
Rapid7 Labs
2026 Global Threat Landscape Report
The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.