CVE-2024-4740
📋 TL;DR
MXsecurity software versions v1.1.0 and prior contain hard-coded credentials that could allow attackers to access and tamper with sensitive data. This affects all users running vulnerable versions of MXsecurity software, potentially compromising security monitoring and management functions.
💻 Affected Systems
- MXsecurity Series
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attacker gains administrative access to MXsecurity systems, tampers with security configurations, disables monitoring, or exfiltrates sensitive security data.
Likely Case
Unauthorized access to security management interfaces leading to configuration changes, data manipulation, or privilege escalation within the security system.
If Mitigated
Limited impact due to network segmentation, access controls, and monitoring preventing credential use even if discovered.
🎯 Exploit Status
Hard-coded credentials typically require minimal technical skill to exploit once discovered.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v1.2.0 or later
Vendor Advisory: https://www.moxa.com/en/support/product-support/security-advisory/mpsa-231878-mxsecurity-series-multiple-vulnerabilities
Restart Required: Yes
Instructions:
1. Download latest firmware from Moxa support portal. 2. Backup current configuration. 3. Upload and apply firmware update via web interface. 4. Verify successful update and restore configuration if needed.
🔧 Temporary Workarounds
Network Segmentation
allIsolate MXsecurity devices from untrusted networks and limit access to management interfaces.
Access Control Lists
allImplement strict firewall rules to restrict access to MXsecurity management ports (typically 80/443).
🧯 If You Can't Patch
- Segment MXsecurity devices on isolated VLAN with strict access controls
- Implement network monitoring for unauthorized access attempts to MXsecurity interfaces
🔍 How to Verify
Check if Vulnerable:
Check MXsecurity web interface or CLI for version number. If version is v1.1.0 or earlier, system is vulnerable.Check Version:
Check web interface System Information page or use device-specific CLI commands if available.Verify Fix Applied:
After patching, verify version shows v1.2.0 or later in web interface or via CLI command.📡 Detection & Monitoring
Log Indicators:
- Failed authentication attempts followed by successful logins
- Configuration changes from unexpected sources
- Access from unauthorized IP addresses
Network Indicators:
- Unusual traffic patterns to MXsecurity management ports
- Authentication attempts using default/hard-coded credentials
SIEM Query:
source="mxsecurity" AND (event_type="authentication" AND result="success") AND user="default" OR user="admin"