CVE-2024-41790
📋 TL;DR
This vulnerability allows authenticated remote attackers to execute arbitrary code with root privileges on SENTRON 7KT PAC1260 Data Manager devices. Attackers can exploit improper input sanitization of the region parameter in POST requests. 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 segments.
Likely Case
Authenticated attackers gaining full control of affected devices to manipulate industrial processes, install persistent backdoors, or exfiltrate operational data.
If Mitigated
Limited impact if devices are isolated in segmented networks with strict authentication controls and monitored for anomalous POST requests.
🎯 Exploit Status
Exploitation requires authenticated access but is straightforward once credentials are obtained. The CWE-78 (OS Command Injection) vulnerability suggests simple command injection techniques could work.
🛠️ 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. Apply firmware update following manufacturer instructions. 4. Restart device to activate patched firmware.
🔧 Temporary Workarounds
Network Segmentation
allIsolate SENTRON devices in dedicated network segments with strict firewall rules
Access Restriction
allRestrict web interface access to authorized management networks only
🧯 If You Can't Patch
- Implement strict network segmentation to isolate affected devices from untrusted networks
- Enforce strong authentication policies and monitor for suspicious web interface access patterns
🔍 How to Verify
Check if Vulnerable:
Check device firmware version against Siemens advisory. Devices running any version of SENTRON 7KT PAC1260 Data Manager are vulnerable.Check Version:
Check web interface system information page or use manufacturer-specific CLI commands if availableVerify Fix Applied:
Verify firmware version has been updated to patched version specified in Siemens advisory and test region parameter sanitization.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to web interface with region parameter containing shell metacharacters
- Multiple failed authentication attempts followed by successful login and POST requests
Network Indicators:
- POST requests to device web interface containing suspicious characters in region parameter
- Outbound connections from device to unexpected external IPs
SIEM Query:
source="sentron_web_logs" AND (method="POST" AND uri="*region=*" AND (content="*;*" OR content="*|*" OR content="*`*" OR content="*$(*"))