CVE-2024-26154
📋 TL;DR
ETIC Telecom Remote Access Server (RAS) versions before 4.5.0 contain a reflected cross-site scripting (XSS) vulnerability in the appliance site name parameter. Attackers can inject malicious scripts that execute when administrators view certain pages, potentially compromising administrative sessions. This affects all ETIC RAS deployments using vulnerable versions.
💻 Affected Systems
- ETIC Telecom Remote Access Server (RAS)
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Administrator account takeover leading to full system compromise, data theft, or ransomware deployment through session hijacking.
Likely Case
Session hijacking of administrative accounts, unauthorized configuration changes, or credential theft.
If Mitigated
Limited impact if administrators use separate accounts with minimal privileges and browsers have XSS protections enabled.
🎯 Exploit Status
Exploitation requires tricking an administrator into clicking a malicious link containing the XSS payload.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 4.5.0
Vendor Advisory: https://www.cisa.gov/news-events/ics-advisories/icsa-22-307-01
Restart Required: Yes
Instructions:
1. Download ETIC RAS version 4.5.0 or later from vendor portal. 2. Backup current configuration. 3. Apply the update following vendor documentation. 4. Restart the RAS appliance. 5. Verify the update was successful.
🔧 Temporary Workarounds
Input Validation Filter
allImplement web application firewall or proxy filtering to sanitize site name parameter inputs
Browser Security Controls
allEnable Content Security Policy (CSP) headers and XSS protection in browsers accessing the admin interface
🧯 If You Can't Patch
- Restrict access to the admin interface using network segmentation and firewall rules
- Implement multi-factor authentication for all administrative accounts
🔍 How to Verify
Check if Vulnerable:
Check ETIC RAS version in admin interface. If version is below 4.5.0, system is vulnerable.Check Version:
Login to ETIC RAS admin interface and navigate to System Information pageVerify Fix Applied:
Verify version is 4.5.0 or higher in admin interface and test site name field for XSS sanitization.📡 Detection & Monitoring
Log Indicators:
- Unusual site name parameter values containing script tags or JavaScript in web logs
- Multiple failed login attempts following suspicious site name changes
Network Indicators:
- HTTP requests containing script tags in site name parameter
- Unusual outbound connections from admin workstations
SIEM Query:
source="etic_ras_logs" AND (site_name CONTAINS "<script>" OR site_name CONTAINS "javascript:")