CVE-2019-1792 Cisco Umbrella Cross-Site Scripting Vulnerability

Medium 6.1 Published 18 Apr 2019 Updated 21 Nov 2024

An attacker can execute arbitrary script code or access sensitive browser information by tricking a user into clicking a malicious link on the Cisco Umbrella block page.

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

What is CVE-2019-1792?

CVE-2019-1792 is a medium-severity cross-site scripting vulnerability in Cisco Umbrella, published on 18 Apr 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

A vulnerability in the URL block page of Cisco Umbrella could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user in a network protected by Umbrella. The vulnerability is due to insufficient validation of input parameters passed to that page. An attacker could exploit this vulnerability by persuading a user of the interface to click a maliciously crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the interface or access sensitive browser-based information. This vulnerability has been fixed in the current version of Cisco Umbrella. Cisco Umbrella is a cloud service.

Weakness: CWE-79

Which versions are affected by CVE-2019-1792?

It affects 1 product.

Products include Cisco Umbrella.

How do I fix CVE-2019-1792?

No fix has been published for CVE-2019-1792 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-2019-1792 being exploited?

There is no known exploitation of CVE-2019-1792 in the wild and no public exploit code.

Sources

Also known as GHSA-2ph5-82ch-xwq8.