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CVE-2020-17409

6.5 · MEDIUM

This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of NETGEAR R6120, R6080, R6260, R6220, R6020, JNR3210, and WNR2020 routers with firm…

Published Oct 13, 2020CWE-288EPSS 0.70%

Overview

CVE-2020-17409 is a medium-severity vulnerability. It was published on October 13, 2020 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of NETGEAR R6120, R6080, R6260, R6220, R6020, JNR3210, and WNR2020 routers with firmware 1.0.66. Authentication is not required to exploit this vulnerability. The specific flaw exists within the mini_httpd service, which listens on TCP port 80 by default. The issue results from incorrect string matching logic when accessing protected pages. An attacker can leverage this vulnerability to disclose stored credentials, leading to further compromise. Was ZDI-CAN-10754.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. 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.

References

Refkb.netgear.com/000062304/Security-Advisory-for-Authentication-Bypass-on-Some-Routers-PSV-2020-0258Refwww.zerodayinitiative.com/advisories/ZDI-20-1176/Refkb.netgear.com/000062304/Security-Advisory-for-Authentication-Bypass-on-Some-Routers-PSV-2020-0258Refwww.zerodayinitiative.com/advisories/ZDI-20-1176/

How CyberStrike helps

Frequently asked questions

What is CVE-2020-17409?

CVE-2020-17409 is a medium-severity vulnerability. It was published on October 13, 2020 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2020-17409?

This vulnerability has a CVSS 3.1 base score of 6.5, 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-2020-17409?

Check the references section for vendor advisories, patches, and mitigation guidance. 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-2020-17409?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2020-17409 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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