// For flags

CVE-2020-17409

NETGEAR Multiple Routers mini_httpd Authentication Bypass Vulnerability

Severity Score

6.5
*CVSS v3.1

Exploit Likelihood

< 1%
*EPSS

Affected Versions

11
*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of NETGEAR R6120, R6080, R6260, R6220, R6020, JNR3210, and WNR2020 routers with firmware 1.0.66. Authentication is not required to exploit this vulnerability. The specific flaw exists within the mini_httpd 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 disclose stored credentials, leading to further compromise. Was ZDI-CAN-10754.

Esta vulnerabilidad permite a atacantes adyacentes a la red divulgar información confidencial sobre las instalaciones afectadas de los enrutadores NETGEAR R6120, R6080, R6260, R6220, R6020, JNR3210 y WNR2020 con versiones de firmware 1.0.66.&#xa0;No es requerida una autenticación para explotar esta vulnerabilidad.&#xa0;El fallo específico se presenta dentro del servicio mini_httpd, que escucha en el puerto TCP 80 por defecto.&#xa0;El problema resulta de una lógica de coincidencia de cadenas incorrecta cuando se accede a páginas protegidas.&#xa0;Un atacante puede aprovechar esta vulnerabilidad para revelar las credenciales almacenadas, conllevando a un mayor compromiso.&#xa0;Fue ZDI-CAN-10754

This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of NETGEAR R6120, R6080, R6260, R6220, R6020, JNR3210, and WNR2020 routers. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the mini_httpd 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 disclose stored credentials, leading to further compromise.

*Credits: Anonymous
CVSS Scores
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Adjacent
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-08-07 CVE Reserved
  • 2020-09-15 CVE Published
  • 2024-08-04 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-288: Authentication Bypass Using an Alternate Path or Channel
CAPEC
Affected Vendors, Products, and Versions (11)