CVE-2023-28966: Junos OS Evolved: Local low-privileged user with shell access can execute CLI commands as root

Published Apr 17, 2023
·
Updated

An Incorrect Default Permissions vulnerability in Juniper Networks Junos OS Evolved allows a low-privileged local attacker with shell access to modify existing files or execute commands as root. The issue is caused by improper file and directory permissions on certain system files, allowing an attacker with access to these files and folders to inject CLI commands as root. This issue affects Juniper Networks Junos OS Evolved: All versions prior to 20.4R3-S5-EVO; 21.2 versions prior to 21.2R3-EVO; 21.3 versions prior to 21.3R2-EVO.

Affected Software

24 affected components
Juniper Junos OS Evolved<20.4
Juniper Junos OS Evolved=20.4
Juniper Junos OS Evolved=20.4-r1
Juniper Junos OS Evolved=20.4-r1-s1
Juniper Junos OS Evolved=20.4-r1-s2
Juniper Junos OS Evolved=20.4-r2
Juniper Junos OS Evolved=20.4-r2-s1
Juniper Junos OS Evolved=20.4-r2-s2
Juniper Junos OS Evolved=20.4-r2-s3
Juniper Junos OS Evolved=20.4-r3
Juniper Junos OS Evolved=20.4-r3-s1
Juniper Junos OS Evolved=20.4-r3-s2
Juniper Junos OS Evolved=20.4-r3-s3
Juniper Junos OS Evolved=20.4-r3-s4
Juniper Junos OS Evolved=21.2
Juniper Junos OS Evolved=21.2-r1
Juniper Junos OS Evolved=21.2-r1-s1
Juniper Junos OS Evolved=21.2-r1-s2
Juniper Junos OS Evolved=21.2-r2
Juniper Junos OS Evolved=21.2-r2-s1
Juniper Junos OS Evolved=21.2-r2-s2
Juniper Junos OS Evolved=21.3
Juniper Junos OS Evolved=21.3-r1
Juniper Junos OS Evolved=21.3-r1-s1

Remediation

Information

The following software releases have been updated to resolve this specific issue: Junos OS Evolved 20.4R3-S5-EVO, 21.2R3-EVO, 21.3R2-EVO, 21.4R1-EVO, and all subsequent releases.

Event History

Apr 17, 2023
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
RemedyDescriptionSeverityWeakness

Frequently Asked Questions

1

What is CVE-2023-28966?

CVE-2023-28966 is an Incorrect Default Permissions vulnerability in Juniper Networks Junos OS Evolved that allows a low-privileged local attacker with shell access to modify existing files or execute commands as root.

2

How does CVE-2023-28966 affect Juniper Networks Junos OS Evolved?

CVE-2023-28966 affects Juniper Networks Junos OS Evolved by allowing a low-privileged local attacker with shell access to modify existing files or execute commands as root.

3

What is the severity of CVE-2023-28966?

The severity of CVE-2023-28966 is high with a severity value of 7.8.

4

How do I fix CVE-2023-28966?

To fix CVE-2023-28966, it is recommended to apply the necessary patches or updates provided by Juniper Networks Junos OS Evolved.

5

Where can I find more information about CVE-2023-28966?

You can find more information about CVE-2023-28966 on the Juniper Networks Support Portal at the following link: [https://supportportal.juniper.net/JSA70590](https://supportportal.juniper.net/JSA70590).

Contact

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