CVE-2025-62630
📋 TL;DR
This vulnerability allows attackers to upload malicious configuration files that bypass directory traversal protections, leading to remote code execution with system privileges. It affects Advantech industrial control systems and similar OT environments where configuration file uploads are enabled. Organizations using affected Advantech products in critical infrastructure are particularly at risk.
💻 Affected Systems
- Advantech WebAccess/SCADA
📦 What is this software?
Deviceon\/iedge by Advantech
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to execute arbitrary code with SYSTEM/root privileges, potentially disrupting industrial operations, stealing sensitive data, or establishing persistent access to critical infrastructure.
Likely Case
Attackers gain initial foothold through configuration upload, then escalate to full system control to deploy ransomware, disrupt operations, or pivot to other network segments.
If Mitigated
With proper network segmentation and file upload restrictions, impact limited to isolated systems with minimal operational disruption.
🎯 Exploit Status
Directory traversal to RCE chain is straightforward for attackers with file upload access. No authentication bypass required if upload functionality is exposed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Advantech advisory for specific patched versions
Vendor Advisory: https://www.advantech.com/emt/contact
Restart Required: Yes
Instructions:
1. Contact Advantech support for patch availability 2. Apply vendor-provided security update 3. Restart affected systems 4. Verify patch installation
🔧 Temporary Workarounds
Disable configuration file uploads
allTemporarily disable or restrict configuration file upload functionality until patch can be applied
Configure application settings to disable file uploads
Use firewall rules to block upload endpoints
Implement file upload validation
allAdd server-side validation to reject files with directory traversal sequences
Implement file name sanitization: reject files containing ../ or ..\
Restrict file extensions to approved types only
🧯 If You Can't Patch
- Network segmentation: Isolate affected systems in separate VLANs with strict firewall rules
- Implement application whitelisting to prevent execution of unauthorized files
🔍 How to Verify
Check if Vulnerable:
Check if system runs affected Advantech software versions and has configuration upload functionality enabledCheck Version:
Check Advantech software version through administration interface or system documentationVerify Fix Applied:
Verify patch version from vendor advisory is installed and test file upload functionality with traversal attempts📡 Detection & Monitoring
Log Indicators:
- Unusual file upload attempts with ../ sequences
- Configuration file modifications from unexpected sources
- Process execution from unusual directories
Network Indicators:
- HTTP POST requests to configuration upload endpoints with suspicious filenames
- Outbound connections from industrial systems to unknown IPs
SIEM Query:
source="web_access_logs" AND (uri="/config/upload" OR uri="/upload") AND (filename="*../*" OR filename="*..\\*")