Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 50.0%
CVSS Severity
CVSS v3 Score 7.5
CVSS v2 Score 5.0
References
- https://enphase.com/en-us/products-and-services/envoy-and-combiner
- https://medium.com/stage-2-security/can-solar-controllers-be-used-to-generate-fake-clean-energy-credits-4a7322e7661a
- https://stage2sec.com
- https://enphase.com/en-us/products-and-services/envoy-and-combiner
- https://medium.com/stage-2-security/can-solar-controllers-be-used-to-generate-fake-clean-energy-credits-4a7322e7661a
- https://stage2sec.com
Products affected by CVE-2020-25754
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cpe:2.3:h:enphase:envoy:-
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cpe:2.3:o:enphase:envoy_firmware:d4.0
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cpe:2.3:o:enphase:envoy_firmware:r3.0