CVE-2024-3781
📋 TL;DR
This CVE describes a command injection vulnerability in WBSAirback's Active Directory integration that allows attackers to execute arbitrary commands on the system. It affects WBSAirback 21.02.04 installations with Active Directory integration enabled. Successful exploitation could lead to complete system compromise.
💻 Affected Systems
- WBSAirback
📦 What is this software?
Wbsairback by Whitebearsolutions
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with root/administrator privileges, data exfiltration, ransomware deployment, and lateral movement across the network.
Likely Case
Unauthorized command execution with system-level privileges, potentially leading to data theft, service disruption, or backdoor installation.
If Mitigated
Limited impact due to network segmentation, strict input validation, and minimal privileges for service accounts.
🎯 Exploit Status
Exploitation requires access to the Active Directory integration functionality. The CWE-78 classification indicates standard command injection techniques would likely work.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check with White Bear Solutions for updated version
Vendor Advisory: https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-wbsairback-white-bear-solutions
Restart Required: Yes
Instructions:
1. Contact White Bear Solutions for patched version. 2. Backup current configuration. 3. Apply vendor-provided patch. 4. Restart WBSAirback services. 5. Verify Active Directory integration functionality.
🔧 Temporary Workarounds
Disable Active Directory Integration
linuxTemporarily disable Active Directory integration to remove attack surface
# Check WBSAirback documentation for specific disable commands
# Typically involves editing configuration files or using admin interface
Network Segmentation
linuxRestrict network access to WBSAirback management interface
iptables -A INPUT -p tcp --dport [WBSAirback_port] -s [trusted_network] -j ACCEPT
iptables -A INPUT -p tcp --dport [WBSAirback_port] -j DROP
🧯 If You Can't Patch
- Implement strict network segmentation to isolate WBSAirback from untrusted networks
- Apply principle of least privilege to service accounts and monitor for suspicious command execution
🔍 How to Verify
Check if Vulnerable:
Check if running WBSAirback version 21.02.04 with Active Directory integration enabled. Review configuration files for AD integration settings.Check Version:
# Check WBSAirback version through admin interface or configuration filesVerify Fix Applied:
Verify patch installation by checking version number and testing Active Directory integration functionality without command injection.📡 Detection & Monitoring
Log Indicators:
- Unusual command execution patterns in system logs
- Failed authentication attempts to Active Directory integration
- Unexpected process spawns from WBSAirback services
Network Indicators:
- Unusual outbound connections from WBSAirback server
- Suspicious traffic to/from Active Directory ports
SIEM Query:
source="WBSAirback" AND (event_type="command_execution" OR event_type="ad_integration") AND command="*;*" OR command="*|*" OR command="*`*"