CVE-2020-3491 Cisco Vision Dynamic Signage Director Stored Cross-Site Scripting Vulnerability
An authenticated admin can inject malicious scripts into the Cisco Vision Dynamic Signage Director interface, allowing arbitrary code execution or data theft.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-3491?
CVE-2020-3491 is a medium-severity cross-site scripting vulnerability in Cisco Vision Dynamic Signage Director, published on 26 Aug 2020. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
A vulnerability in the web-based management interface of Cisco Vision Dynamic Signage Director could allow an authenticated, remote attacker with administrative privileges to conduct a cross-site scripting (XSS) attack against a user of the interface on an affected device. The vulnerability exists because the web-based management interface does not properly validate user-supplied input. An attacker could exploit this vulnerability by inserting malicious data into a specific data field in the interface. A successful exploit could allow the attacker to execute arbitrary script code in the context of the interface or access sensitive, browser-based information. To exploit this vulnerability, the attacker would need to have administrative privileges on the affected device.
Weakness: CWE-79
Which versions are affected by CVE-2020-3491?
It affects 1 product.
Products include Cisco Vision Dynamic Signage Director.
How do I fix CVE-2020-3491?
No fix has been published for CVE-2020-3491 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-2020-3491 being exploited?
There is no known exploitation of CVE-2020-3491 in the wild and no public exploit code.
Other vulnerabilities in Cisco Vision Dynamic Signage Director
- CVE-2019-1917 Cisco Vision Dynamic Signage Director REST API Authentication Bypass Vulnerability
- CVE-2020-3598 Cisco Vision Dynamic Signage Director Missing Authentication Vulnerability
- CVE-2019-16004 Cisco Vision Dynamic Signage Director Authentication Bypass Vulnerability
- CVE-2020-3485 Cisco Vision Dynamic Signage Director Role-Based Access Control Vulnerability
- CVE-2021-34742 Cisco Vision Dynamic Signage Director Reflected Cross-Site Scripting Vulnerability
Sources
Also known as GHSA-vxm5-p34v-5xv5.