CVE-2022-2140
📋 TL;DR
CVE-2022-2140 is a cross-site scripting (XSS) vulnerability in Elcomplus SmartICS v2.3.4.0 that allows authenticated users to inject malicious scripts into specific parameters. This enables attackers to execute arbitrary code in the context of other users' browsers. Organizations using Elcomplus SmartICS v2.3.4.0 for industrial control systems are affected.
💻 Affected Systems
- Elcomplus SmartICS
📦 What is this software?
Smartics by Smartics
⚠️ Risk & Real-World Impact
Worst Case
An attacker could steal session cookies, perform actions as other users, redirect to malicious sites, or compromise the entire ICS system if combined with other vulnerabilities.
Likely Case
Session hijacking, credential theft, or unauthorized actions performed by authenticated attackers against other users.
If Mitigated
Limited impact with proper input validation, output encoding, and Content Security Policy (CSP) headers in place.
🎯 Exploit Status
Requires authenticated access but injection is straightforward once authenticated. No public exploit code available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v2.3.4.1 or later
Vendor Advisory: https://www.cisa.gov/uscert/ics/advisories/icsa-22-174-05
Restart Required: Yes
Instructions:
1. Contact Elcomplus for updated version. 2. Backup current configuration. 3. Install v2.3.4.1 or later. 4. Restart SmartICS services. 5. Verify functionality.
🔧 Temporary Workarounds
Input Validation Filter
allImplement server-side input validation to sanitize user-controllable parameters
Implement regex filtering for parameters: /[^a-zA-Z0-9\s\-]/
Content Security Policy
allAdd CSP headers to restrict script execution sources
Add HTTP header: Content-Security-Policy: default-src 'self'
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block XSS payloads
- Restrict network access to SmartICS to only authorized users and segments
🔍 How to Verify
Check if Vulnerable:
Check if running SmartICS v2.3.4.0 via admin interface or version fileCheck Version:
Check SmartICS web interface > About or examine program files version infoVerify Fix Applied:
Verify version is v2.3.4.1 or later and test parameter inputs with XSS payloads📡 Detection & Monitoring
Log Indicators:
- Unusual parameter values containing script tags
- Multiple failed login attempts followed by parameter manipulation
Network Indicators:
- HTTP requests with script tags in parameters
- Unusual outbound connections after authenticated sessions
SIEM Query:
source="smartics" AND (param="*<script>*" OR param="*javascript:*")