CVE-2020-27865: D-Link DAP-1860 uhttpd Authentication Bypass Remote Code Execution Vulnerability
First published: Fri Feb 12 2021(Updated: )
This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-1860 WiFi extenders. Authentication is not required to exploit this vulnerability. The specific flaw exists within the uhttpd 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 escalate privileges and execute code in the context of the device.
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 CVE-2020-27865?
CVE-2020-27865 is a vulnerability that 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-2020-27865?
No, authentication is not required to exploit this vulnerability.
Which service is affected by CVE-2020-27865?
The uhttpd service is affected by CVE-2020-27865.
What is the severity of CVE-2020-27865?
CVE-2020-27865 has a severity value of 8.8, which is considered high.
How can I fix CVE-2020-27865?
The vendor, D-Link, has released firmware version 1.05B01 that addresses this vulnerability. It is recommended to update to the latest firmware version.
- collector/zdi-advisory
- alias/ZDI-20-1429
- alias/ZDI-CAN-10894
- alias/CVE-2020-27865
- collector/nvd-index
- vendor/d-link
- canonical/d-link dap-1860
- vendor/dlink
- canonical/dlink dap-1860 firmware
- version/dlink dap-1860 firmware/1.04b03
- canonical/dlink dap-1860
- version/dlink dap-1860/ax