CVE-2022-22807
📋 TL;DR
This clickjacking vulnerability allows attackers to trick users into performing unintended actions on the EcoStruxure EV Charging Expert web interface by overlaying malicious content in iframes. Attackers could modify product settings or user accounts without proper user consent. All versions prior to SP8 (Version 01) V4.0.0.13 are affected.
💻 Affected Systems
- EcoStruxure EV Charging Expert (formerly EVlink Load Management System)
📦 What is this software?
Hmibscea53d1edb Firmware by Schneider Electric
Hmibscea53d1edl Firmware by Schneider Electric
Hmibscea53d1edm Firmware by Schneider Electric
Hmibscea53d1eds Firmware by Schneider Electric
Hmibscea53d1eml Firmware by Schneider Electric
Hmibscea53d1esm Firmware by Schneider Electric
Hmibscea53d1ess Firmware by Schneider Electric
⚠️ Risk & Real-World Impact
Worst Case
Attackers could gain administrative control over EV charging infrastructure, modify charging parameters, disrupt operations, or create unauthorized user accounts with elevated privileges.
Likely Case
Attackers trick authenticated users into changing configuration settings or creating new accounts, potentially leading to service disruption or unauthorized access.
If Mitigated
With proper clickjacking protections and user awareness, impact is limited to unsuccessful social engineering attempts.
🎯 Exploit Status
Requires user interaction and social engineering to trick authenticated users into clicking malicious iframes.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: SP8 (Version 01) V4.0.0.13
Vendor Advisory: https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2022-039-02
Restart Required: Yes
Instructions:
1. Download SP8 (Version 01) V4.0.0.13 from Schneider Electric portal. 2. Backup current configuration. 3. Apply the update following vendor documentation. 4. Restart the system. 5. Verify the update was successful.
🔧 Temporary Workarounds
Implement Clickjacking Protection Headers
allAdd X-Frame-Options header to prevent iframe embedding
X-Frame-Options: DENY
Content-Security-Policy: frame-ancestors 'none'
Network Segmentation
allRestrict web interface access to trusted networks only
🧯 If You Can't Patch
- Implement strict network access controls to limit web interface exposure
- Train users to recognize and avoid clickjacking attempts
🔍 How to Verify
Check if Vulnerable:
Check web interface version in system settings or via SSH if available. Compare against vulnerable version range.Check Version:
Check via web interface: System > About or similar menuVerify Fix Applied:
Verify system reports version SP8 (Version 01) V4.0.0.13 or later. Test if web interface can be embedded in iframes.📡 Detection & Monitoring
Log Indicators:
- Multiple failed login attempts followed by configuration changes
- Unusual configuration modifications from unexpected IP addresses
Network Indicators:
- Web traffic containing iframe embedding attempts
- Requests with missing or weak X-Frame-Options headers
SIEM Query:
source="web_logs" AND (uri CONTAINS "/admin/" OR uri CONTAINS "/config/") AND (referer CONTAINS "malicious" OR user_agent CONTAINS "iframe")