CVE-2024-31485
📋 TL;DR
This vulnerability allows authenticated privileged remote attackers to execute arbitrary commands with root privileges on affected CPCI85 and SICORE Base systems. The command injection occurs through the web interface due to insufficient input validation. Organizations using these industrial control systems with vulnerable versions are at risk.
💻 Affected Systems
- CPCI85 Central Processing/Communication
- SICORE Base system
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to execute arbitrary code as root, potentially disrupting industrial operations, stealing sensitive data, or establishing persistent access.
Likely Case
Privileged authenticated attackers gaining remote code execution to manipulate system functions, install malware, or pivot to other network segments.
If Mitigated
Limited impact if proper network segmentation, authentication controls, and input validation are implemented, though risk remains for authenticated users.
🎯 Exploit Status
Exploitation requires authenticated privileged access but command injection vulnerabilities are typically straightforward to exploit once access is obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: CPCI85: V5.30 or later, SICORE Base: V1.3.0 or later
Vendor Advisory: https://cert-portal.siemens.com/productcert/html/ssa-871704.html
Restart Required: Yes
Instructions:
1. Download the updated firmware from Siemens support portal. 2. Backup current configuration. 3. Apply firmware update following vendor documentation. 4. Verify successful update and restore configuration if needed. 5. Restart the device.
🔧 Temporary Workarounds
Network Segmentation
allIsolate affected devices from untrusted networks and limit access to authorized management systems only.
Access Control Hardening
allImplement strict authentication policies, multi-factor authentication, and principle of least privilege for web interface access.
🧯 If You Can't Patch
- Implement network segmentation to isolate vulnerable devices from critical systems and internet access.
- Deploy web application firewall (WAF) with command injection rules and enhance monitoring for suspicious web interface activity.
🔍 How to Verify
Check if Vulnerable:
Check device firmware version via web interface or CLI. For CPCI85: version < 5.30 is vulnerable. For SICORE Base: version < 1.3.0 is vulnerable.Check Version:
Check via device web interface or consult vendor documentation for CLI version check commands specific to each product.Verify Fix Applied:
Verify firmware version is CPCI85 ≥ 5.30 or SICORE Base ≥ 1.3.0. Test web interface functionality to ensure proper input validation.📡 Detection & Monitoring
Log Indicators:
- Unusual command execution patterns in system logs
- Multiple failed authentication attempts followed by successful privileged access
- Web interface requests containing shell metacharacters or command injection patterns
Network Indicators:
- Unusual outbound connections from industrial control devices
- Traffic patterns indicating command and control activity
- Anomalous web interface access from unexpected sources
SIEM Query:
source="industrial_device" AND (http_uri="*;*" OR http_uri="*|*" OR http_uri="*`*" OR http_uri="*$(*" OR http_uri="*&*" OR http_uri="*%*cmd*" OR http_uri="*%*sh*")