CVE-2024-3788
📋 TL;DR
This vulnerability in WBSAirback 21.02.04 allows improper neutralization of Server-Side Includes (SSI) through the License endpoint at /admin/CDPUsers. A remote attacker could exploit this to execute arbitrary code on affected systems. Organizations using WBSAirback 21.02.04 are affected.
💻 Affected Systems
- WBSAirback
📦 What is this software?
Wbsairback by Whitebearsolutions
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete system compromise, data theft, and lateral movement within the network.
Likely Case
Unauthorized code execution allowing attackers to gain foothold, install malware, or disrupt backup operations.
If Mitigated
Limited impact if proper network segmentation, least privilege, and monitoring are in place.
🎯 Exploit Status
Exploitation requires access to the admin interface; details are limited in public advisories.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor for updated version beyond 21.02.04
Vendor Advisory: https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-wbsairback-white-bear-solutions
Restart Required: Yes
Instructions:
1. Check vendor advisory for patch details. 2. Apply the patch to WBSAirback. 3. Restart the service to ensure changes take effect.
🔧 Temporary Workarounds
Restrict Access to Admin Interface
linuxLimit network access to the /admin/CDPUsers endpoint to trusted IPs only.
iptables -A INPUT -p tcp --dport [admin_port] -s [trusted_ip] -j ACCEPT
iptables -A INPUT -p tcp --dport [admin_port] -j DROP
🧯 If You Can't Patch
- Implement strict network segmentation to isolate WBSAirback from untrusted networks.
- Monitor logs for unusual access to /admin/CDPUsers and set up alerts for suspicious activity.
🔍 How to Verify
Check if Vulnerable:
Check if WBSAirback version is 21.02.04 and the /admin/CDPUsers endpoint is accessible.Check Version:
Check WBSAirback web interface or configuration files for version info.Verify Fix Applied:
Verify that the WBSAirback version has been updated beyond 21.02.04 per vendor guidance.📡 Detection & Monitoring
Log Indicators:
- Unusual requests to /admin/CDPUsers
- SSI-related errors in application logs
Network Indicators:
- Traffic to /admin/CDPUsers from unexpected sources
SIEM Query:
source="wbsairback_logs" AND uri="/admin/CDPUsers"