CVE-2025-48891
📋 TL;DR
An SQL injection vulnerability in Advantech iView's CUtils.checkSQLInjection() function allows authenticated attackers to execute arbitrary SQL commands. This affects systems running vulnerable versions of Advantech iView software, potentially exposing database contents or causing service disruption.
💻 Affected Systems
- Advantech iView
📦 What is this software?
Iview by Advantech
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including sensitive data exfiltration, credential theft, and full system takeover through privilege escalation.
Likely Case
Information disclosure of database contents, potential DoS through database manipulation, and limited data modification.
If Mitigated
Limited impact due to network segmentation, minimal database privileges, and input validation at other layers.
🎯 Exploit Status
SQL injection through parameter manipulation; requires authentication but minimal technical skill needed
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor advisory for specific patched versions
Vendor Advisory: https://www.advantech.com/en/support/details/firmware-?id=1-HIPU-183
Restart Required: Yes
Instructions:
1. Review vendor advisory for affected versions. 2. Download and apply the latest iView update from Advantech. 3. Restart the iView service. 4. Verify the update was successful.
🔧 Temporary Workarounds
Network Segmentation
allRestrict access to iView interfaces to trusted networks only
Database Privilege Reduction
allLimit database account permissions used by iView to minimum required
🧯 If You Can't Patch
- Implement web application firewall (WAF) with SQL injection rules
- Monitor for unusual database queries and authentication patterns
🔍 How to Verify
Check if Vulnerable:
Check iView version against vendor advisory; test SQL injection in CUtils.checkSQLInjection() function parametersCheck Version:
Check iView administration interface or installation directory for version informationVerify Fix Applied:
Verify iView version is updated to patched version; test SQL injection attempts are properly blocked📡 Detection & Monitoring
Log Indicators:
- Unusual SQL query patterns in iView logs
- Multiple failed authentication attempts followed by SQL errors
Network Indicators:
- SQL injection patterns in HTTP requests to iView endpoints
- Unusual database connection spikes
SIEM Query:
source="iView" AND (event="SQL_ERROR" OR message="*SQL*injection*")