CVE-2023-20123

Medium

Description

A vulnerability in the offline access mode of Cisco Duo Two-Factor Authentication for macOS and Duo Authentication for Windows Logon and RDP could allow an unauthenticated, physical attacker to replay valid user session credentials and gain unauthorized access to an affected macOS or Windows device. This vulnerability exists because session credentials do not properly expire. An attacker could exploit this vulnerability by replaying previously used multifactor authentication (MFA) codes to bypass MFA protection. A successful exploit could allow the attacker to gain unauthorized access to the affected device.

SeverityMedium
CVSS6.3
Exploit probability—
ProductCisco Duo
PublishedApr 5, 2023
First seenApr 5, 2023
Weakness typeCWE-294CWE-294

How to fix

Update
  • cisco duo2.0.1 or later
  • cisco duo_authentication_for_windows_logon_and_rdp4.2.2 or later

Affected products

ProductAffected versionsFixed in
cisco duov < 2.0.12.0.1
cisco duo_authentication_for_windows_logon_and_rdpv < 4.2.24.2.2

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.

CVE-2023-20123 · Cisco Duo · Dark Radar