CVE-2023-32274
📋 TL;DR
Enphase Installer Toolkit Android app version 3.27.0 contains hard-coded credentials in its binary code, allowing attackers to extract and use these credentials to access sensitive information. This affects all users of the vulnerable Android application version.
💻 Affected Systems
- Enphase Installer Toolkit
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers gain full access to installer accounts, potentially compromising customer solar system data, installation details, and enabling unauthorized control of connected Enphase systems.
Likely Case
Attackers extract credentials to access installer portal data, potentially viewing customer information, installation records, and system configurations.
If Mitigated
With proper network segmentation and monitoring, impact is limited to data exposure without system control, though credentials remain compromised.
🎯 Exploit Status
Exploitation requires reverse engineering the APK to extract hard-coded credentials, which is straightforward for attackers with basic skills.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Versions after 3.27.0
Vendor Advisory: https://www.cisa.gov/news-events/ics-advisories/icsa-23-171-02
Restart Required: Yes
Instructions:
1. Open Google Play Store on Android device. 2. Search for 'Enphase Installer Toolkit'. 3. If update available, tap 'Update'. 4. Restart the application after update completes.
🔧 Temporary Workarounds
Uninstall Vulnerable Version
androidRemove the vulnerable application from all Android devices until patched version is available.
adb uninstall com.enphaseenergy.installertoolkit
🧯 If You Can't Patch
- Discontinue use of the Enphase Installer Toolkit app on Android devices until updated.
- Monitor network traffic from Android devices for unusual access to Enphase services and reset any credentials exposed.
🔍 How to Verify
Check if Vulnerable:
Check app version in Android Settings > Apps > Enphase Installer Toolkit > App Info; if version is 3.27.0, it is vulnerable.Check Version:
adb shell dumpsys package com.enphaseenergy.installertoolkit | grep versionNameVerify Fix Applied:
After update, verify app version is higher than 3.27.0 in Android app settings.📡 Detection & Monitoring
Log Indicators:
- Unusual login attempts to Enphase services from unexpected IP addresses or devices
- Multiple failed authentication attempts followed by successful login using same credentials
Network Indicators:
- Suspicious API calls to Enphase cloud services from non-installer IP ranges
- Traffic patterns indicating credential extraction from mobile app
SIEM Query:
source="android_logs" app="Enphase Installer Toolkit" AND (event="authentication" OR event="api_call") | stats count by src_ip, user