CVE-2020-3490 Cisco Vision Dynamic Signage Director Path Traversal Vulnerability
Authenticated administrators can exploit path traversal in Cisco Vision Dynamic Signage Director to read sensitive files on the underlying operating system.
- 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-2020-3490?
CVE-2020-3490 is a medium-severity path traversal 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 directory traversal attacks and obtain read access to sensitive files on an affected system. The vulnerability exists because the web-based management interface does not properly validate user-supplied input. An attacker could exploit this vulnerability by sending a crafted HTTP request that contains directory traversal character sequences to an affected system. A successful exploit could allow the attacker to read files on the underlying operating system with root privileges. To exploit this vulnerability, the attacker would need to have administrative privileges on the affected system.
Weakness: CWE-22
Which versions are affected by CVE-2020-3490?
It affects 1 product.
Products include Cisco Vision Dynamic Signage Director.
How do I fix CVE-2020-3490?
No fix has been published for CVE-2020-3490 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2020-3490 being exploited?
There is no known exploitation of CVE-2020-3490 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-83q8-xh5q-v6v3.