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    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.

    Published:Jun 16, 2021
    Last Modified:Nov 21, 2024
    EPS:Jun 16, 2021
    EPSS Score:0.00352
    CVSS Score:7.5

    Affected Products

    Vendor
    Enphase
    Product
    Envoy
    Vendor
    Enphase
    Product
    Envoy Firmware

    Exploits

    https://medium.com/stage-2-security/can-solar-controllers-be-used-to-generate-fake-clean-energy-credits-4a7322e7661ahttps://medium.com/stage-2-security/can-solar-controllers-be-used-to-generate-fake-clean-energy-credits-4a7322e7661a

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-55 Rainbow Table Password Cracking

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High