CVE-2024-3792
📋 TL;DR
This is a stored Cross-Site Scripting (XSS) vulnerability in WBSAirback 21.02.04 that allows attackers to inject malicious scripts through the DeviceReplication interface. When exploited, it enables session hijacking by stealing authentication cookies or other sensitive data from authenticated administrators. Only organizations using the vulnerable WBSAirback version are affected.
💻 Affected Systems
- WBSAirback
📦 What is this software?
Wbsairback by Whitebearsolutions
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of administrative accounts leading to data theft, system manipulation, or lateral movement within the network.
Likely Case
Session hijacking allowing unauthorized access to administrative functions and potential data exposure.
If Mitigated
Limited impact with proper input validation and output encoding in place.
🎯 Exploit Status
Exploitation requires authenticated access to the admin interface and victim interaction with malicious content.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 21.02.05 or later
Vendor Advisory: https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-wbsairback-white-bear-solutions
Restart Required: Yes
Instructions:
1. Backup current configuration. 2. Download and install WBSAirback 21.02.05 or later from official vendor sources. 3. Restart the WBSAirback service. 4. Verify the update was successful.
🔧 Temporary Workarounds
Input Validation Enhancement
linuxImplement strict input validation for the DeviceReplication execution range field
# Modify application code to sanitize user input in /admin/DeviceReplication
Output Encoding
linuxApply proper output encoding for all user-controlled data displayed in the interface
# Implement HTML entity encoding for all dynamic content
🧯 If You Can't Patch
- Restrict access to the /admin/DeviceReplication interface using network segmentation or firewall rules
- Implement Content Security Policy (CSP) headers to mitigate XSS impact
🔍 How to Verify
Check if Vulnerable:
Check if running WBSAirback version 21.02.04 by examining the version in the admin interface or configuration filesCheck Version:
grep -i version /opt/wbsairback/config/*.conf || cat /opt/wbsairback/VERSION.txtVerify Fix Applied:
Verify the version has been updated to 21.02.05 or later and test the DeviceReplication interface with safe payloads📡 Detection & Monitoring
Log Indicators:
- Unusual JavaScript payloads in DeviceReplication logs
- Multiple failed authentication attempts followed by successful admin login
Network Indicators:
- HTTP requests containing script tags or JavaScript code to /admin/DeviceReplication
- Unexpected outbound connections from the WBSAirback server
SIEM Query:
source="wbsairback.logs" AND (uri="/admin/DeviceReplication" AND (content="<script>" OR content="javascript:"))