CVE-2020-3113 Cisco Data Center Network Manager Stored Cross-Site Scripting Vulnerability

Medium 4.8 Published 19 Feb 2020 Updated 15 Nov 2024

Authenticated attackers can inject scripts into the Cisco DCNM web interface, allowing code execution or data theft against other users.

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

What is CVE-2020-3113?

CVE-2020-3113 is a medium-severity cross-site scripting vulnerability in Cisco Data Center Network Manager, published on 19 Feb 2020. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

A vulnerability in the web-based management interface of Cisco Data Center Network Manager (DCNM) could allow an authenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the web-based management interface. The vulnerability is due to insufficient validation of user-supplied input by the web-based management interface. An attacker could exploit this vulnerability by persuading a user of the interface to click a 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.

Weakness: CWE-79

Which versions are affected by CVE-2020-3113?

It affects 1 product.

Products include Cisco Data Center Network Manager.

How do I fix CVE-2020-3113?

No fix has been published for CVE-2020-3113 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-2020-3113 being exploited?

There is no known exploitation of CVE-2020-3113 in the wild and no public exploit code.

All Cisco Data Center Network Manager vulnerabilities

Sources

Also known as GHSA-p3v4-35p5-g693.