CVE-2020-25754

HIGH EPSS 67.7%
Published Jun 16, 20215y ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
High
Find Similar
Published Jun 16, 2021 5y ago
Last Modified Jun 17, 2026 2w ago

Description

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 Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
67.7% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-916

Affected Products 3

VendorProductVersionRange
enphaseenvoy_firmwared4.0any
enphaseenvoy_firmwarer3.0any
enphaseenvoy*any

References 3

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.