CVE-2023-20123
6.3 · MEDIUMOverview
CVE-2023-20123 is a medium-severity vulnerability affecting cisco duo. It was published on April 5, 2023 and has a CVSS 3.1 base score of 6.3 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 6.3, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical 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.
Remediation
Check the references section for vendor advisories and patches from cisco. Update duo to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| cisco | duo | >= 0, < 2.0.1 | Affected |
| cisco | duo_authentication_for_windows_logon_and_rdp | >= 0, < 4.2.2 | Affected |
Frequently Asked Questions
What is CVE-2023-20123?
CVE-2023-20123 is a medium-severity vulnerability affecting cisco duo. It was published on April 5, 2023 and has a CVSS 3.1 base score of 6.3 (MEDIUM).
How severe is CVE-2023-20123?
This vulnerability has a CVSS 3.1 base score of 6.3, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2023-20123?
Check the references section for vendor advisories and patches from cisco. Update duo to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2023-20123?
CyberStrike's AI-powered security agents can automatically detect CVE-2023-20123 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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