CVE-2020-25754
Last modified
CVE-2020-25754 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 1.34% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Enphase | Envoy Firmware | d4.0 |
| Enphase | Envoy Firmware | r3.0 |
References
- https://enphase.com/en-us/products-and-services/envoy-and-combinerProduct, Vendor Advisory
- https://medium.com/stage-2-security/can-solar-controllers-be-used-to-generate-fake-clean-energy-credits-4a7322e7661aExploit, Third Party Advisory
- https://stage2sec.comThird Party Advisory
- https://enphase.com/en-us/products-and-services/envoy-and-combinerProduct, Vendor Advisory
- https://medium.com/stage-2-security/can-solar-controllers-be-used-to-generate-fake-clean-energy-credits-4a7322e7661aExploit, Third Party Advisory
- https://stage2sec.comThird Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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