CVE-2024-5956
📋 TL;DR
This vulnerability allows unauthenticated remote attackers to bypass authentication mechanisms in Trellix IPS Manager by sending specially crafted garbage data, granting them partial access to sensitive data. Organizations using vulnerable versions of Trellix IPS Manager are affected.
💻 Affected Systems
- Trellix IPS Manager
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers gain unauthorized access to sensitive network security data, potentially enabling further network reconnaissance or lateral movement.
Likely Case
Unauthenticated attackers access partial data from the IPS Manager, potentially exposing security configurations or event data.
If Mitigated
With proper network segmentation and access controls, impact is limited to the IPS Manager system only.
🎯 Exploit Status
Exploitation requires sending malformed/garbage data to bypass authentication
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor advisory for specific patched versions
Vendor Advisory: https://thrive.trellix.com/s/article/000013870
Restart Required: Yes
Instructions:
1. Review vendor advisory at provided URL. 2. Apply recommended patch/update. 3. Restart affected services/systems.
🔧 Temporary Workarounds
Network Access Restriction
allRestrict network access to Trellix IPS Manager to trusted IP addresses only
Use firewall rules to limit access (e.g., iptables -A INPUT -p tcp --dport [IPS_MANAGER_PORT] -s [TRUSTED_IP] -j ACCEPT)
🧯 If You Can't Patch
- Implement strict network segmentation to isolate the IPS Manager from untrusted networks
- Monitor authentication logs for unusual access patterns or failed authentication attempts
🔍 How to Verify
Check if Vulnerable:
Check Trellix IPS Manager version against vendor advisory; test if unauthenticated garbage data triggers authentication bypassCheck Version:
Check Trellix IPS Manager interface or documentation for version commandVerify Fix Applied:
Verify patch installation via version check; test that authentication bypass no longer occurs with garbage data📡 Detection & Monitoring
Log Indicators:
- Unusual authentication bypass events
- Failed authentication attempts followed by successful access with garbage data
Network Indicators:
- Unusual traffic patterns to IPS Manager from untrusted sources
SIEM Query:
source="trellix_ips_manager" AND (event_type="auth_bypass" OR (auth_failure AND subsequent_success))