CVE-2024-26003
📋 TL;DR
CVE-2024-26003 is an out-of-bounds read vulnerability in a charging system control agent that allows unauthenticated remote attackers to cause a denial-of-service condition. This can disrupt charging functionality for affected systems. Organizations using vulnerable charging infrastructure are impacted.
💻 Affected Systems
- Charging system control agent (specific product names not provided in references)
📦 What is this software?
Charx Sec 3000 Firmware by Phoenixcontact
Charx Sec 3050 Firmware by Phoenixcontact
Charx Sec 3100 Firmware by Phoenixcontact
Charx Sec 3150 Firmware by Phoenixcontact
⚠️ Risk & Real-World Impact
Worst Case
Complete disruption of charging operations for extended periods, potentially affecting multiple charging stations simultaneously.
Likely Case
Temporary service interruption of individual charging stations requiring manual restart or maintenance.
If Mitigated
Limited impact with proper network segmentation and monitoring, allowing quick detection and response.
🎯 Exploit Status
The vulnerability description indicates unauthenticated remote exploitation is possible, suggesting relatively simple attack vectors.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified in provided references
Vendor Advisory: https://cert.vde.com/en/advisories/VDE-2024-011
Restart Required: Yes
Instructions:
1. Contact your charging system vendor for specific patches. 2. Apply vendor-provided updates. 3. Restart affected systems. 4. Verify functionality post-update.
🔧 Temporary Workarounds
Network Segmentation
allIsolate charging control systems from untrusted networks
Access Control Lists
linuxRestrict network access to control agent ports
iptables -A INPUT -p tcp --dport [CONTROL_PORT] -s [TRUSTED_NETWORK] -j ACCEPT
iptables -A INPUT -p tcp --dport [CONTROL_PORT] -j DROP
🧯 If You Can't Patch
- Implement strict network segmentation to isolate charging systems
- Deploy intrusion detection systems to monitor for exploitation attempts
🔍 How to Verify
Check if Vulnerable:
Check system version against vendor advisory and look for control agent crashes in logsCheck Version:
Vendor-specific command - consult system documentationVerify Fix Applied:
Verify patch installation via vendor tools and monitor for continued stable operation📡 Detection & Monitoring
Log Indicators:
- Unexpected control agent crashes
- Memory access violation errors
- Increased failed connection attempts to control port
Network Indicators:
- Unusual traffic patterns to control agent ports
- Connection attempts from unexpected sources
SIEM Query:
source="charging_control.log" AND ("segmentation fault" OR "out of bounds" OR "memory violation")