CVE-2024-56840
📋 TL;DR
A code injection vulnerability in IPsec implementation allows attackers to execute arbitrary code with root privileges on affected Siemens RUGGEDCOM ROX devices. This affects multiple MX and RX series industrial routers running versions below V2.17.0. Successful exploitation could lead to complete device compromise.
💻 Affected Systems
- RUGGEDCOM ROX MX5000
- RUGGEDCOM ROX MX5000RE
- RUGGEDCOM ROX RX1400
- RUGGEDCOM ROX RX1500
- RUGGEDCOM ROX RX1501
- RUGGEDCOM ROX RX1510
- RUGGEDCOM ROX RX1511
- RUGGEDCOM ROX RX1512
- RUGGEDCOM ROX RX1524
- RUGGEDCOM ROX RX1536
- RUGGEDCOM ROX RX5000
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete device takeover with root privileges, allowing attacker to modify configurations, install persistent backdoors, pivot to internal networks, or disrupt industrial operations.
Likely Case
Remote code execution leading to device compromise, data exfiltration, or disruption of network connectivity in industrial environments.
If Mitigated
Limited impact if devices are behind firewalls, have restricted network access, or use additional security controls like network segmentation.
🎯 Exploit Status
Exploitation requires IPsec access to the device; complexity depends on attacker's ability to reach and interact with IPsec services.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: V2.17.0
Vendor Advisory: https://cert-portal.siemens.com/productcert/html/ssa-912274.html
Restart Required: Yes
Instructions:
1. Download V2.17.0 firmware from Siemens support portal. 2. Backup current configuration. 3. Upload and install firmware update via web interface or CLI. 4. Reboot device. 5. Verify successful update.
🔧 Temporary Workarounds
Disable IPsec
allTemporarily disable IPsec functionality if not required for operations
# Disable IPsec via CLI
configure terminal
no crypto ipsec
end
Restrict IPsec Access
allApply firewall rules to restrict access to IPsec services
# Example access-list to restrict IPsec
ip access-list extended RESTRICT_IPSEC
deny ip any any eq 500
deny ip any any eq 4500
permit ip any any
🧯 If You Can't Patch
- Segment affected devices in isolated network zones with strict firewall rules
- Implement network monitoring and intrusion detection for IPsec traffic anomalies
🔍 How to Verify
Check if Vulnerable:
Check device firmware version via web interface or CLI command 'show version'Check Version:
show versionVerify Fix Applied:
Verify firmware version is V2.17.0 or higher using 'show version' command📡 Detection & Monitoring
Log Indicators:
- Unusual IPsec connection attempts
- Unexpected configuration changes
- Authentication failures on IPsec services
Network Indicators:
- Anomalous traffic patterns on UDP ports 500/4500
- Unexpected outbound connections from devices
SIEM Query:
source="RUGGEDCOM" AND (event_type="config_change" OR port IN (500, 4500))