CVE-2023-20091 Cisco TelePresence Collaboration Endpoint and RoomOS Software Arbitrary File Overwrite Vulnerability
An authenticated local attacker can overwrite arbitrary files on Cisco TelePresence devices via symbolic link manipulation in the CLI.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-20091?
CVE-2023-20091 is a medium-severity path traversal vulnerability in Cisco TelePresence Endpoint Software (TC/CE), published on 15 Nov 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability in the CLI of Cisco TelePresence CE and RoomOS could allow an authenticated, local attacker to overwrite arbitrary files on the local file system of an affected device. This vulnerability is due to improper access controls on files that are on the local file system. An attacker could exploit this vulnerability by placing a symbolic link in a specific location on the local file system of an affected device. A successful exploit could allow the attacker to overwrite arbitrary files on the affected device. To exploit this vulnerability, an attacker would need to have a remote support user account. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
Weakness: CWE-61
Which versions are affected by CVE-2023-20091?
It affects 2 products.
Products include Cisco Roomos, Cisco Telepresence Collaboration Endpoint.
How do I fix CVE-2023-20091?
No fix has been published for CVE-2023-20091 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-2023-20091 being exploited?
There is no known exploitation of CVE-2023-20091 in the wild and no public exploit code.
Other vulnerabilities in Cisco TelePresence Endpoint Software (TC/CE)
- CVE-2026-20150 Cisco RoomOS Security Hardening Release - Access Control Vulnerabilities
- CVE-2019-15288 Cisco TelePresence Collaboration Endpoint, TelePresence Codec, and RoomOS Software Privilege Escalation Vulnerability
- CVE-2026-20156 Cisco RoomOS Security Hardening Release - Buffer Management Vulnerabilities
- CVE-2026-20153 Cisco RoomOS Security Hardening Release - Input Validation Vulnerabilities
- CVE-2026-20157 Cisco RoomOS Security Hardening Release - Missing Encryption Vulnerabilities
Sources
Also known as GHSA-3jv8-hvr8-2qwh.