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CVE-2020-25754

Published: Jun 16, 2021Updated: Nov 21, 2024 Sources: CVE List NVDCWE-916
NVD MITRE
7.5CVSSHIGH
EPSS Score
1.3%
Top 32.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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 Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-916

Affected Products

n/an/a
envoy firmwareenphase
Embedded
ICS / OT / IoT / smart-home
enphasecommercialUSICS / OT / IoTaka enphase energy

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Credential Access
View detailed technique mapping

References

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

Timeline

Published
Jun 16, 2021
Last Updated
Nov 21, 2024

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