CVE-2024-41788
📋 TL;DR
This vulnerability allows authenticated remote attackers to execute arbitrary code with root privileges on SENTRON 7KT PAC1260 Data Manager devices. The web interface fails to sanitize input parameters in specific GET requests, enabling command injection. All versions of this industrial control system device are affected.
💻 Affected Systems
- SENTRON 7KT PAC1260 Data Manager
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise with root-level code execution, allowing attackers to disrupt industrial operations, steal sensitive data, or pivot to other network systems.
Likely Case
Attackers with network access and valid credentials could execute commands to disrupt monitoring functions, modify configuration data, or install persistent backdoors.
If Mitigated
With proper network segmentation and authentication controls, impact would be limited to the specific device's functions without broader network compromise.
🎯 Exploit Status
Exploitation requires authentication but command injection via GET parameters is typically straightforward once authenticated.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Siemens advisory for specific firmware updates
Vendor Advisory: https://cert-portal.siemens.com/productcert/html/ssa-187636.html
Restart Required: Yes
Instructions:
1. Review Siemens advisory SSA-187636
2. Download appropriate firmware update from Siemens support portal
3. Follow manufacturer's firmware update procedure
4. Verify successful update and restart device
🔧 Temporary Workarounds
Network Segmentation
allIsolate SENTRON devices in dedicated network segments with strict firewall rules
Authentication Hardening
allChange default credentials, implement strong password policies, and consider multi-factor authentication
🧯 If You Can't Patch
- Implement strict network access controls to limit connections to authorized IP addresses only
- Disable web interface if not required, or restrict to management network segments
🔍 How to Verify
Check if Vulnerable:
Check device firmware version against Siemens advisory and verify if web interface accepts unsanitized GET parametersCheck Version:
Check web interface system information page or consult device documentation for version checkingVerify Fix Applied:
Verify firmware version has been updated to patched version specified in Siemens advisory📡 Detection & Monitoring
Log Indicators:
- Unusual GET requests with shell metacharacters in parameters
- Multiple failed authentication attempts followed by successful login
- Unexpected process execution or system command logs
Network Indicators:
- HTTP requests containing shell commands in URL parameters
- Unusual outbound connections from the device
SIEM Query:
source="sentron_web_logs" AND (url="*?param=*&*" OR url="*?cmd=*") AND (url="*;*" OR url="*|*" OR url="*`*" OR url="*$(*")