CVE-2020-25752

Severity Score

5.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An issue was discovered on Enphase Envoy R3.x and D4.x devices. There are hardcoded web-panel login passwords for the installer and Enphase accounts. The passwords for these accounts are hardcoded values derived from the MD5 hash of the username and serial number mixed with some static strings. The serial number can be retrieved by an unauthenticated user at /info.xml. These passwords can be easily calculated by an attacker; users are unable to change these passwords.

Se detectó un problema en los dispositivos Enphase Envoy R3.x y D4.x. Se presenta contraseñas de inicio de sesión del panel web embebidas para las cuentas del instalador y de Enphase. Las contraseñas para estas cuentas son valores codificados derivados del hash MD5 del nombre de usuario y el número de serie mezclado con algunas cadenas estáticas. El número de serie puede ser recuperado por un usuario no autenticado en el archivo /info.xml. Estas contraseñas pueden ser fácilmente calculadas por un atacante; unos usuarios no pueden cambiar estas contraseñas

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Attack Vector

Network

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

2020-09-18 CVE Reserved
2021-06-16 CVE Published
2024-03-01 EPSS Updated
2024-08-04 CVE Updated
2024-08-04 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-798: Use of Hard-coded Credentials

CAPEC

References (3)

URL	Tag	Source
https://stage2sec.com	Third Party Advisory

URL	Date	SRC
https://medium.com/stage-2-security/can-solar-controllers-be-used-to-generate-fake-clean-energy-credits-4a7322e7661a	2024-08-04

URL	Date	SRC

URL	Date	SRC
https://enphase.com/en-us/products-and-services/envoy-and-combiner	2021-06-24

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Enphase Search vendor "Enphase"	Envoy Firmware Search vendor "Enphase" for product "Envoy Firmware"	d4.0 Search vendor "Enphase" for product "Envoy Firmware" and version "d4.0"	-	Affected	in	Enphase Search vendor "Enphase"	Envoy Search vendor "Enphase" for product "Envoy"	-	-	Safe
Enphase Search vendor "Enphase"	Envoy Firmware Search vendor "Enphase" for product "Envoy Firmware"	r3.0 Search vendor "Enphase" for product "Envoy Firmware" and version "r3.0"	-	Affected	in	Enphase Search vendor "Enphase"	Envoy Search vendor "Enphase" for product "Envoy"	-	-	Safe