CVE-2023-20199 Cisco Duo Two-Factor Authentication for macOS Authentication Bypass Vulnerability
An authenticated physical attacker can bypass secondary authentication on macOS devices configured to fail open, gaining unauthorized access.
- 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-2023-20199?
CVE-2023-20199 is a medium-severity authentication bypass vulnerability in Cisco Duo, published on 28 Jun 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability in Cisco Duo Two-Factor Authentication for macOS could allow an authenticated, physical attacker to bypass secondary authentication and access an affected macOS device. This vulnerability is due to the incorrect handling of responses from Cisco Duo when the application is configured to fail open. An attacker with primary user credentials could exploit this vulnerability by attempting to authenticate to an affected device. A successful exploit could allow the attacker to access the affected device without valid permission.
Weakness: CWE-287
Which versions are affected by CVE-2023-20199?
It affects 1 product.
Products include Cisco Duo.
How do I fix CVE-2023-20199?
No fix has been published for CVE-2023-20199 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2023-20199 being exploited?
There is no known exploitation of CVE-2023-20199 in the wild and no public exploit code.
Other vulnerabilities in Cisco Duo
Sources
Also known as GHSA-mggg-vw4x-89wv.