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Critical Sungrow Inverter Vulnerability Lets Attackers Access Solar Plants Without Passwords

Cyber Security News·Source published ·1 min read

What happened?

A critical Sungrow inverter vulnerability could have allowed attackers to log in to the company’s iSolarCloud management platform without a valid password. The flaw affected the cloud service used to manage solar plants, inverters, and battery storage systems, creating a serious risk for customers and energy operators in Europe, China, Australia, and other regions. Sungrow Inverter Vulnerability According to research published by Jakkaru, the flaw was a business-logic error in iSolarCloud’s login process.

Key details

  • Attackers could bypass password and log into iSolarCloud management.
  • The bypass exploited a login_type value that ignored the password field.
  • No email or login alert was sent, allowing stealthy access.
  • Sungrow released a hotfix within a day after being notified.

Fixes and mitigations

  1. Owners should ensure iSolarCloud accounts and devices are fully updated.

What to look for

  • No email or login alert is generated when the bypass is used.

Summarised by SecOraLens from Cyber Security News. Always read the original source before acting. How SecOraLens verifies advisories.