// For flags

CVE-2020-27865

D-Link DAP-1860 uhttpd Authentication Bypass Remote Code Execution Vulnerability

Severity Score

8.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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 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. Was ZDI-CAN-10894.

Esta vulnerabilidad permite a atacantes adyacentes a la red ejecutar código arbitrario en las instalaciones afectadas de los extensores de WiFi D-Link DAP-1860 versión de firmware 1.04B03. No es requerida una autenticación para explotar esta vulnerabilidad. El fallo específico se presenta dentro del servicio uhttpd, que escucha en el puerto TCP 80 por defecto. El problema es debido a una lógica de coincidencia de cadenas incorrecta al acceder a páginas protegidas. Un atacante puede aprovechar esta vulnerabilidad para escalar privilegios y ejecutar código en el contexto del dispositivo. Era ZDI-CAN-10894

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.

*Credits: chung96vn of Vietnam Cyber Security Center
CVSS Scores
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Adjacent
Attack Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-10-27 CVE Reserved
  • 2020-12-15 CVE Published
  • 2024-02-29 EPSS Updated
  • 2024-08-04 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-287: Improper Authentication
  • CWE-288: Authentication Bypass Using an Alternate Path or Channel
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Dlink
Search vendor "Dlink"
 Dap-1860 Firmware
Search vendor "Dlink" for product "Dap-1860 Firmware"
 <= 1.04b03
Search vendor "Dlink" for product "Dap-1860 Firmware" and version " <= 1.04b03"
-
Affected
in Dlink
Search vendor "Dlink"
 Dap-1860
Search vendor "Dlink" for product "Dap-1860"
 ax
Search vendor "Dlink" for product "Dap-1860" and version "ax"
-
Safe