CVE-2021-34742 Cisco Vision Dynamic Signage Director Reflected Cross-Site Scripting Vulnerability
Unauthenticated attackers can execute arbitrary scripts or access sensitive data by tricking users into clicking crafted links in the Cisco Vision Dynamic Signage Director interface.
- 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-2021-34742?
CVE-2021-34742 is a medium-severity cross-site scripting vulnerability in Cisco Vision Dynamic Signage Director, published on 6 Oct 2021. 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 web-based management interface of Cisco Vision Dynamic Signage Director could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface on an affected device. This 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-2021-34742?
It affects 1 product.
Products include Cisco Vision Dynamic Signage Director.
How do I fix CVE-2021-34742?
No fix has been published for CVE-2021-34742 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-2021-34742 being exploited?
There is no known exploitation of CVE-2021-34742 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-2020-3491 Cisco Vision Dynamic Signage Director Stored Cross-Site Scripting Vulnerability
Sources
Also known as GHSA-m49x-9cgf-q686.