CVE-2020-27864

CVSS 8.8 HIGHEPSS 9.8%CWE-77

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 8.8EPSS 9.8%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

11 Feb 2021Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-1860 firmware version 1.04B03 WiFi extenders. Authentication is not required to exploit this vulnerability. The specific flaw exists within the HNAP service, which listens on TCP port 80 by default. When parsing the Authorization request header, the process does not properly validate a user-supplied string before using it to execute a system call. An attacker can leverage this vulnerability to execute code in the context of the device. Was ZDI-CAN-10880.

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

D-Link · DAP-1860

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References

https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10197 https://www.zerodayinitiative.com/advisories/ZDI-20-1428/