CVE-2023-20209 Command injection in Cisco TelePresence Video Communication Server (VCS) Expressway
Authenticated attackers can execute arbitrary commands with root privileges via the web management interface of Cisco Expressway and VCS devices.
- 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-2023-20209?
CVE-2023-20209 is a medium-severity command injection vulnerability in Cisco TelePresence Video Communication Server (VCS) Expressway, published on 16 Aug 2023. 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 Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an authenticated, remote attacker with read-write privileges on the application to perform a command injection attack that could result in remote code execution on an affected device. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted request to the web-based management interface of an affected device. A successful exploit could allow the attacker to establish a remote shell with root privileges.
Which versions are affected by CVE-2023-20209?
It affects 1 product.
Products include Cisco Telepresence Video Communication Server.
How do I fix CVE-2023-20209?
No fix has been published for CVE-2023-20209 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2023-20209 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-20209 exists.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in Cisco TelePresence Video Communication Server (VCS) Expressway
- CVE-2023-20105 Privilege escalation in Cisco TelePresence Video Communication Server (VCS) Expressway
- CVE-2023-20192 Cisco Expressway Series and Cisco TelePresence Video Communication Server Privilege Escalation Vulnerabilities
- CVE-2022-20754 Cisco Expressway Series and Cisco TelePresence Video Communication Server Vulnerabilities
- CVE-2022-20755 Cisco Expressway Series and Cisco TelePresence Video Communication Server Vulnerabilities
- CVE-2016-1468 Command injection in n/a
Sources
Also known as GHSA-fqmx-hq6j-36x9.