CVE-2022-20662 Cisco Duo for macOS Authentication Bypass Vulnerability
An attacker with physical access can bypass Cisco Duo authentication on macOS by using any PIV smart card, regardless of assignment.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2022-20662?
CVE-2022-20662 is a medium-severity authentication bypass vulnerability in Cisco Duo, published on 30 Sep 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability in the smart card login authentication of Cisco Duo for macOS could allow an unauthenticated attacker with physical access to bypass authentication. This vulnerability exists because the assigned user of a smart card is not properly matched with the authenticating user. An attacker could exploit this vulnerability by configuring a smart card login to bypass Duo authentication. A successful exploit could allow the attacker to use any personal identity verification (PIV) smart card for authentication, even if the smart card is not assigned to the authenticating user.
Weakness: CWE-287
Which versions are affected by CVE-2022-20662?
It affects 1 product.
Products include Cisco Duo.
How do I fix CVE-2022-20662?
No fix has been published for CVE-2022-20662 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-2022-20662 being exploited?
There is no known exploitation of CVE-2022-20662 in the wild and no public exploit code.
Other vulnerabilities in Cisco Duo
Sources
Also known as GHSA-2x3m-h8fc-hm6p.