CVEvulnerability
CVE-2020-25754
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-06-16
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:P/I:N/A:N
- Weaknesses
- CWE-916
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.
Affected configurations
• enphase envoy firmware d4.0
• enphase envoy firmware r3.0
Related
Weakness · CWE (1)
- CWE-916 Use of Password Hash With Insufficient Computational Effort weakness
References
- 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
- 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