MacOS Duo MFA Bypass via Fail-Open Config
CVE-2023-20199 Published on June 28, 2023
Cisco Duo Two-Factor Authentication for macOS Authentication Bypass Vulnerability
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.
Vulnerability Analysis
CVE-2023-20199 can be exploited with physical access, and requires user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Type
What is an authentification Vulnerability?
When an actor claims to have a given identity, the software does not prove or insufficiently proves that the claim is correct.
CVE-2023-20199 has been classified to as an authentification vulnerability or weakness.
Products Associated with CVE-2023-20199
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Affected Versions
Cisco Duo Version n/a is affected by CVE-2023-20199Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.