CVE-2024-39546 Junos OS Evolved: Local low-privilege user can gain root permissions leading to privilege escalation

High 7.0 Published Updated

A local low-privilege user can exploit missing authorization in the Socket Intercept interface to execute commands with root privileges, leading to full system compromise.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2024-39546?

CVE-2024-39546 is a high-severity missing authorization vulnerability in Juniper Junos Os Evolved, published on 11 Jul 2024. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

A Missing Authorization vulnerability in the Socket Intercept (SI) command file interface of Juniper Networks Junos OS Evolved allows an authenticated, low-privilege local attacker to modify certain files, allowing the attacker to cause any command to execute with root privileges leading to privilege escalation ultimately compromising the system. 

This issue affects Junos OS Evolved: 

* All versions prior to 21.2R3-S8-EVO,  * 21.4 versions prior to  21.4R3-S6-EVO,  * 22.1 versions prior to 22.1R3-S5-EVO,  * 22.2 versions prior to 22.2R3-S3-EVO,  * 22.3 versions prior to 22.3R3-S3-EVO,  * 22.4 versions prior to 22.4R3-EVO,  * 23.2 versions prior to 23.2R2-EVO.

Weakness: CWE-862

Which versions are affected by CVE-2024-39546?

It affects 1 product.

Products include Juniper Junos Os Evolved.

How do I fix CVE-2024-39546?

No fix has been published for CVE-2024-39546 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2024-39546 being exploited?

There is no known exploitation of CVE-2024-39546 in the wild and no public exploit code.

All Juniper Junos Os Evolved vulnerabilities

Sources

Also known as GHSA-27x2-77hh-wh7h.

Is CVE-2024-39546 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free