CVE-2023-28962 Junos OS: Unauthenticated access vulnerability in J-Web

Medium 5.3 Published 17 Apr 2023 Updated 6 Feb 2025

Unauthenticated attackers can upload arbitrary files to Junos OS J-Web, potentially leading to code execution or privilege escalation.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-28962?

CVE-2023-28962 is a medium-severity vulnerability in Juniper Junos, published on 17 Apr 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An Improper Authentication vulnerability in upload-file.php, used by the J-Web component of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to upload arbitrary files to temporary folders on the device. This issue affects Juniper Networks Junos OS: All versions prior to 19.4R3-S11; 20.1 version 20.1R1 and later versions; 20.2 versions prior to 20.2R3-S7; 20.3 version 20.3R1 and later versions; 20.4 versions prior to 20.4R3-S6; 21.1 version 21.1R1 and later versions; 21.2 versions prior to 21.2R3-S4; 21.3 versions prior to 21.3R3-S3; 21.4 versions prior to 21.4R3-S3; 22.1 versions prior to 22.1R3-S1; 22.2 versions prior to 22.2R2-S1, 22.2R3; 22.3 versions prior to 22.3R1-S2, 22.3R2.

Weakness: CWE-434, CWE-287

Which versions are affected by CVE-2023-28962?

It affects 1 product.

Products include Juniper Junos.

How do I fix CVE-2023-28962?

No fix has been published for CVE-2023-28962 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-28962 being exploited?

There is no known exploitation of CVE-2023-28962 in the wild and no public exploit code.

All Juniper Junos vulnerabilities

Sources

Also known as GHSA-cvjh-8294-qppm.