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CVE-2020-8864

8.8 · HIGH

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of D-Link DIR-867, DIR-878, and DIR-882 routers with firmware 1.10B04.

Published Mar 23, 2020CWE-697EPSS 80.22%

Overview

CVE-2020-8864 is a high-severity vulnerability. It was published on March 23, 2020 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. 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 bypass authentication on affected installations of D-Link DIR-867, DIR-878, and DIR-882 routers with firmware 1.10B04. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of HNAP login requests. The issue results from the lack of proper handling of empty passwords. An attacker can leverage this vulnerability to execute arbitrary code on the router. Was ZDI-CAN-9471.

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

Refsupportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10157Refwww.zerodayinitiative.com/advisories/ZDI-20-268/Refsupportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10157Refwww.zerodayinitiative.com/advisories/ZDI-20-268/

How CyberStrike helps

Frequently asked questions

What is CVE-2020-8864?

CVE-2020-8864 is a high-severity vulnerability. It was published on March 23, 2020 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2020-8864?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. 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-2020-8864?

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-2020-8864?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2020-8864 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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