CVE-2024-20301 Auth bypass in Cisco Duo
An authenticated physical attacker can bypass secondary authentication on Windows devices by exploiting a session invalidation flaw after reboot.
- 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-2024-20301?
CVE-2024-20301 is a medium-severity authentication bypass vulnerability in Cisco Duo, published on 6 Mar 2024. 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 Authentication for Windows Logon and RDP could allow an authenticated, physical attacker to bypass secondary authentication and access an affected Windows device. This vulnerability is due to a failure to invalidate locally created trusted sessions after a reboot of the affected device. 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 permissions.
Which versions are affected by CVE-2024-20301?
It affects 1 product.
Products include Cisco Duo Authentication for Windows Logon and Rdp.
How do I fix CVE-2024-20301?
No fix has been published for CVE-2024-20301 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-2024-20301 being exploited?
There is no known exploitation of CVE-2024-20301 in the wild and no public exploit code.
Other vulnerabilities in Cisco Duo
Sources
Also known as GHSA-8cv6-h2pr-548g.