CVE-2023-29117
📋 TL;DR
CVE-2023-29117 is an authentication bypass vulnerability in Waybox Enel X web management API that allows attackers to gain administrator privileges without valid credentials. This affects Waybox systems with exposed management interfaces, potentially compromising electric vehicle charging infrastructure management.
💻 Affected Systems
- Waybox Enel X
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of Waybox system allowing attackers to manipulate charging operations, access sensitive customer data, disrupt charging services, and potentially pivot to other network systems.
Likely Case
Unauthorized administrative access leading to configuration changes, data theft, and service disruption for affected charging stations.
If Mitigated
Limited impact if systems are properly segmented, API access is restricted, and monitoring detects authentication anomalies.
🎯 Exploit Status
Authentication bypass vulnerabilities are typically easy to exploit once the method is understood. No public exploit code identified in references.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version specified in Waybox-3-Security-Bulletin-06-2024
Vendor Advisory: https://support-emobility.enelx.com/content/dam/enelxmobility/italia/documenti/manuali-schede-tecniche/Waybox-3-Security-Bulletin-06-2024-V1.pdf
Restart Required: Yes
Instructions:
1. Download latest firmware from Enel X support portal. 2. Backup current configuration. 3. Apply firmware update via web interface or local method. 4. Verify authentication mechanisms are functioning correctly.
🔧 Temporary Workarounds
Network Segmentation
linuxRestrict access to Waybox management interface to trusted networks only
iptables -A INPUT -p tcp --dport [management_port] -s [trusted_network] -j ACCEPT
iptables -A INPUT -p tcp --dport [management_port] -j DROP
API Access Restriction
allImplement network-level restrictions on web management API endpoints
🧯 If You Can't Patch
- Isolate Waybox systems on dedicated VLAN with strict firewall rules allowing only necessary traffic
- Implement network monitoring for authentication bypass attempts and unauthorized API access
🔍 How to Verify
Check if Vulnerable:
Test authentication bypass by attempting API calls without valid credentials to management endpoints. Monitor for successful unauthorized access.Check Version:
Check firmware version via web interface or consult device documentation for CLI version checkVerify Fix Applied:
Verify authentication properly rejects unauthorized API requests. Test that valid credentials are required for all administrative functions.📡 Detection & Monitoring
Log Indicators:
- Failed authentication attempts followed by successful administrative actions
- API requests from unusual IP addresses with administrative privileges
- Authentication logs showing bypass patterns
Network Indicators:
- Unusual API traffic patterns to management endpoints
- Administrative requests without preceding authentication handshake
- Traffic to management interface from unauthorized networks
SIEM Query:
source="waybox" AND (event_type="api_call" AND auth_result="success" AND NOT auth_method="password") OR (src_ip NOT IN allowed_networks AND dest_port=management_port)