CVE-2025-26473
📋 TL;DR
The Mojave Inverter uses HTTP GET requests to transmit sensitive information, potentially exposing credentials or configuration data in URLs, logs, or browser history. This affects organizations using Outback Power's Mojave Inverter systems with default configurations.
💻 Affected Systems
- Outback Power Mojave Inverter
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers intercept GET requests containing authentication tokens or configuration data, gaining unauthorized access to inverter control systems and potentially manipulating power output or stealing sensitive operational data.
Likely Case
Information disclosure of sensitive inverter configuration parameters or credentials through web server logs, proxy logs, or browser history, enabling reconnaissance for further attacks.
If Mitigated
Limited exposure with proper network segmentation and monitoring, though sensitive data may still be visible in internal logs.
🎯 Exploit Status
Requires network access to the inverter's web interface and ability to intercept or view HTTP traffic
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check with Outback Power for specific firmware version
Vendor Advisory: https://www.cisa.gov/news-events/ics-advisories/icsa-25-044-17
Restart Required: Yes
Instructions:
1. Contact Outback Power for updated firmware. 2. Backup current configuration. 3. Apply firmware update via web interface or local connection. 4. Verify functionality post-update.
🔧 Temporary Workarounds
Disable Web Interface
allTemporarily disable the web management interface if not required for operations
Network Segmentation
allIsolate inverter management network from general corporate network
🧯 If You Can't Patch
- Implement strict network access controls to limit who can reach the inverter web interface
- Deploy web application firewall to filter and monitor HTTP traffic to the inverter
🔍 How to Verify
Check if Vulnerable:
Monitor HTTP traffic to the inverter web interface and check if sensitive parameters appear in GET request URLsCheck Version:
Check firmware version via inverter web interface or local displayVerify Fix Applied:
After patching, verify that sensitive information is transmitted via POST requests with proper encryption📡 Detection & Monitoring
Log Indicators:
- GET requests containing sensitive parameters like passwords, tokens, or configuration data in web server logs
Network Indicators:
- HTTP GET requests to inverter with sensitive query parameters in packet captures
SIEM Query:
http.method:GET AND (http.uri:*password* OR http.uri:*token* OR http.uri:*config*) AND destination.ip:[inverter_ip]