CVE-2020-3143 Cisco TelePresence Collaboration Endpoint, TelePresence Codec, and RoomOS Software Path Traversal Vulnerability
Authenticated attackers can read and write arbitrary files on Cisco TelePresence devices via directory traversal in the xAPI.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-3143?
CVE-2020-3143 is a high-severity path traversal vulnerability in Cisco TelePresence TC Software, published on 23 Sep 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability in the video endpoint API (xAPI) of Cisco TelePresence Collaboration Endpoint (CE) Software, Cisco TelePresence Codec (TC) Software, and Cisco RoomOS Software could allow an authenticated, remote attacker to conduct directory traversal attacks on an affected device. The vulnerability is due to insufficient validation of user-supplied input to the xAPI of the affected software. An attacker could exploit this vulnerability by sending a crafted request to the xAPI. A successful exploit could allow the attacker to read and write arbitrary files in the system. To exploit this vulnerability, an attacker would need either an In-Room Control or administrator account.
Weakness: CWE-22
Which versions are affected by CVE-2020-3143?
It affects 21 products.
Products include Cisco Ex60 Firmware, Cisco Ex90 Firmware, Cisco Sx10 Firmware, Cisco Sx20 Firmware, Cisco Sx80 Firmware, Cisco Telepresence Codec C40 Firmware and 15 more.
How do I fix CVE-2020-3143?
No fix has been published for CVE-2020-3143 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-2020-3143 being exploited?
There is no known exploitation of CVE-2020-3143 in the wild and no public exploit code.
Sources
Also known as GHSA-j55q-wc55-chv4.