CVE-2020-25754

An issue was discovered on Enphase Envoy R3.x and D4.x devices. There is a custom PAM module for user authentication that circumvents traditional user authentication. This module uses a password derived from the MD5 hash of the username and serial number. The serial number can be retrieved by an unauthenticated user at /info.xml. Attempts to change the user password via passwd or other tools have no effect.

CVSS v3 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:P/I:N/A:N

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://enphase.com/en-us/products-and-services/envoy-and-combiner	Product Vendor Advisory
https://medium.com/stage-2-security/can-solar-controllers-be-used-to-generate-fake-clean-energy-credits-4a7322e7661a	Exploit Third Party Advisory
https://stage2sec.com	Third Party Advisory

Configurations

Configuration 1 (hide)

AND

OR	cpe:2.3:o:enphase:envoy_firmware:d4.0:::::::*
	cpe:2.3:o:enphase:envoy_firmware:r3.0:::::::*

cpe:2.3:h:enphase:envoy:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2021-06-16 19:15

Updated : 2021-06-28 14:25

NVD link : CVE-2020-25754

Mitre link : CVE-2020-25754

CVE.ORG link : CVE-2020-25754

JSON object : View

Products Affected

enphase

envoy_firmware
envoy

CWE

CWE-916

Use of Password Hash With Insufficient Computational Effort

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