CVE-2023-20192 Cisco Expressway Series and Cisco TelePresence Video Communication Server Privilege Escalation Vulnerabilities

Critical 9.6 Published 28 Jun 2023 Updated 2 Aug 2024

Authenticated attackers with read-only admin credentials can escalate to full read-write administrator privileges on Cisco Expressway and VCS systems.

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-2023-20192?

CVE-2023-20192 is a critical vulnerability in Cisco TelePresence Video Communication Server (VCS) Expressway, published on 28 Jun 2023. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Multiple vulnerabilities in Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an authenticated attacker with Administrator-level read-only credentials to elevate their privileges to Administrator with read-write credentials on an affected system. Note: "Cisco Expressway Series" refers to Cisco Expressway Control (Expressway-C) devices and Cisco Expressway Edge (Expressway-E) devices. For more information about these vulnerabilities, see the Details section of this advisory.

Weakness: CWE-20

Which versions are affected by CVE-2023-20192?

It affects 1 product.

Products include Cisco Telepresence Video Communication Server.

How do I fix CVE-2023-20192?

No fix has been published for CVE-2023-20192 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-20192 being exploited?

There is no known exploitation of CVE-2023-20192 in the wild and no public exploit code.

Sources

Also known as GHSA-hqc2-r8jq-7rg7.