CVE-2020-8006
📋 TL;DR
CVE-2020-8006 is a pre-authentication stack-based buffer overflow vulnerability in Circontrol Raption charging station servers. It allows remote attackers to execute arbitrary code as root without authentication, potentially gaining full control of the device. This affects all Raption charging stations through version 5.11.2.
💻 Affected Systems
- Circontrol Raption DC Charging Stations
📦 What is this software?
Raption Server by Circontrol
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of charging station with root access, allowing attackers to disable charging, manipulate billing, cause physical damage, or pivot to other network systems.
Likely Case
Remote code execution leading to charging station disruption, data theft, or ransomware deployment on charging infrastructure.
If Mitigated
Attack prevented by network segmentation and proper patching, with no impact to operations.
🎯 Exploit Status
Pre-authentication exploit with no common mitigations makes exploitation straightforward. Full disclosure details available in security advisories.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Versions after 5.11.2
Vendor Advisory: https://circontrol.com/intelligent-charging-solutions/dc-chargers-series/raption-150/
Restart Required: Yes
Instructions:
1. Contact Circontrol for updated firmware. 2. Backup current configuration. 3. Apply firmware update via management interface. 4. Restart charging station. 5. Verify version is >5.11.2.
🔧 Temporary Workarounds
Network Segmentation
allIsolate charging stations from internet and critical networks
Access Control Lists
linuxRestrict network access to charging station management interfaces
iptables -A INPUT -p tcp --dport [management_port] -s [trusted_ips] -j ACCEPT
iptables -A INPUT -p tcp --dport [management_port] -j DROP
🧯 If You Can't Patch
- Segment charging stations on isolated VLAN with strict firewall rules
- Implement network monitoring for anomalous traffic to/from charging stations
🔍 How to Verify
Check if Vulnerable:
Check firmware version via management interface. If version ≤5.11.2, system is vulnerable.Check Version:
Check via web interface at http://[station_ip]/status or SSH if availableVerify Fix Applied:
Verify firmware version is >5.11.2 and test management interface functionality.📡 Detection & Monitoring
Log Indicators:
- Unusual buffer overflow errors in system logs
- Multiple failed authentication attempts followed by successful exploit
Network Indicators:
- Unusual traffic patterns to charging station management ports
- Shellcode patterns in network traffic
SIEM Query:
source="charging_station" AND (event_type="buffer_overflow" OR auth_result="success" AFTER multiple_failures)🔗 References
- https://circontrol.com/intelligent-charging-solutions/dc-chargers-series/raption-150/
- https://seclists.org/fulldisclosure/2024/Mar/33
- http://seclists.org/fulldisclosure/2024/Mar/33
- https://circontrol.com/intelligent-charging-solutions/dc-chargers-series/raption-150/
- https://seclists.org/fulldisclosure/2024/Mar/33
