CVE-2020-27864: D-Link DAP-1860 HNAP Authorization Command Injection Remote Code Execution Vulnerability
First published: Thu Feb 11 2021(Updated: )
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.
Credit: zdi-disclosures@trendmicro.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| D-Link DAP-1860 | ||
| Dlink Dap-1860 Firmware | <=1.04b03 | |
| Dlink Dap-1860 | =ax |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID for this D-Link DAP-1860 vulnerability?
The vulnerability ID for this D-Link DAP-1860 vulnerability is CVE-2020-27864.
What is the severity of CVE-2020-27864?
The severity of CVE-2020-27864 is high with a CVSS score of 8.8.
How does this vulnerability allow attackers to execute arbitrary code?
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-1860 firmware version 1.04B03 WiFi extenders.
Is authentication required to exploit CVE-2020-27864?
No, authentication is not required to exploit CVE-2020-27864.
What is the recommended solution for this vulnerability?
D-Link has released a firmware update to address this vulnerability. It is recommended to update to version 1.04B04 or later.
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