CVE-2021-3052 PAN-OS: Reflected Cross-Site Scripting (XSS) in Web Interface

High 8.0 Published 8 Sep 2021 Updated 16 Sep 2024

An authenticated attacker can trick another administrator into clicking a malicious link to perform arbitrary actions in the PAN-OS web interface.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2021-3052?

CVE-2021-3052 is a high-severity cross-site scripting vulnerability in Paloaltonetworks Pan-Os, published on 8 Sep 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

A reflected cross-site scripting (XSS) vulnerability in the Palo Alto Network PAN-OS web interface enables an authenticated network-based attacker to mislead another authenticated PAN-OS administrator to click on a specially crafted link that performs arbitrary actions in the PAN-OS web interface as the targeted authenticated administrator. This issue impacts: PAN-OS 8.1 versions earlier than 8.1.20; PAN-OS 9.0 versions earlier than 9.0.14; PAN-OS 9.1 versions earlier than 9.1.10; PAN-OS 10.0 versions earlier than 10.0.2. This issue does not affect Prisma Access.

Weakness: CWE-79

Which versions are affected by CVE-2021-3052?

It affects 1 product.

Products include Paloaltonetworks Pan-Os.

How do I fix CVE-2021-3052?

No fix has been published for CVE-2021-3052 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2021-3052 being exploited?

There is no known exploitation of CVE-2021-3052 in the wild and no public exploit code.

All Paloaltonetworks Pan-Os vulnerabilities

Sources

Also known as GHSA-xx6w-2mwc-44g2.