CVE-2020-25752 : Vulnerability Insights and Analysis

Enphase Envoy R3.x and D4.x devices have hardcoded web-panel login passwords for installer and Enphase accounts, derived from MD5 hashes of usernames and serial numbers. Attackers can easily calculate these passwords.

Understanding CVE-2020-25752

An issue was discovered on Enphase Envoy R3.x and D4.x devices where hardcoded web-panel login passwords pose a security risk.

What is CVE-2020-25752?

The vulnerability involves hardcoded web-panel login passwords for installer and Enphase accounts on Enphase Envoy R3.x and D4.x devices. These passwords are derived from MD5 hashes of usernames and serial numbers, making them easily calculable by attackers.

The Impact of CVE-2020-25752

Unauthorized access to Enphase Envoy devices
Risk of attackers easily calculating login passwords

Technical Details of CVE-2020-25752

Enphase Envoy R3.x and D4.x devices are affected by hardcoded web-panel login passwords, making them vulnerable to unauthorized access.

Vulnerability Description

Hardcoded web-panel login passwords for installer and Enphase accounts
Passwords derived from MD5 hashes of usernames and serial numbers
Serial numbers retrievable by unauthenticated users

Affected Systems and Versions

Enphase Envoy R3.x and D4.x devices
All versions are affected

Exploitation Mechanism

Attackers can calculate passwords using MD5 hashes of usernames and serial numbers

Mitigation and Prevention

Immediate Steps to Take:

Change default passwords immediately
Implement strong, unique passwords for web-panel logins Long-Term Security Practices:
Regularly update passwords and credentials
Monitor for unauthorized access attempts
Implement multi-factor authentication where possible

Patching and Updates

Enphase may release patches or updates to address this vulnerability