CVE-2020-3483
7.1 · HIGHOverview
CVE-2020-3483 is a high-severity vulnerability affecting cisco duo_network_gateway. It was published on October 14, 2020 and has a CVSS 3.1 base score of 7.1 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical Description
Duo has identified and fixed an issue with the Duo Network Gateway (DNG) product in which some customer-provided SSL certificates and private keys were not excluded from logging. This issue resulted in certificate and private key information being written out in plain-text to local files on the DNG host. Any private keys logged in this way could be viewed by those with access to the DNG host operating system without any need for reversing encrypted values or similar techniques. An attacker that gained access to the DNG logs and with the ability to intercept and manipulate network traffic between a user and the DNG, could decrypt and manipulate SSL/TLS connections to the DNG and to the protected applications behind it. Duo Network Gateway (DNG) versions 1.3.3 through 1.5.7 are affected.
Remediation
Check the references section for vendor advisories and patches from cisco. Update duo_network_gateway 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_network_gateway | 1.3.3 | Affected |
Frequently Asked Questions
What is CVE-2020-3483?
CVE-2020-3483 is a high-severity vulnerability affecting cisco duo_network_gateway. It was published on October 14, 2020 and has a CVSS 3.1 base score of 7.1 (HIGH).
How severe is CVE-2020-3483?
This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2020-3483?
Check the references section for vendor advisories and patches from cisco. Update duo_network_gateway 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-2020-3483?
CyberStrike's AI-powered security agents can automatically detect CVE-2020-3483 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.
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