CVE-2024-33792
📋 TL;DR
This vulnerability allows attackers to execute arbitrary operating system commands on netis-systems MEX605 routers through the tracert page. Attackers can gain full control of affected devices by sending specially crafted payloads. Organizations using netis-systems MEX605 v2.00.06 routers are affected.
💻 Affected Systems
- netis-systems MEX605
📦 What is this software?
Mex605 Firmware by Netis Systems
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of the router allowing attackers to pivot to internal networks, intercept/modify traffic, install persistent backdoors, or use the device for further attacks.
Likely Case
Remote code execution leading to device takeover, credential theft, network reconnaissance, and potential lateral movement to connected systems.
If Mitigated
Limited impact if device is isolated, properly segmented, and monitored with network controls preventing command execution.
🎯 Exploit Status
Public proof-of-concept code exists in GitHub repositories. Exploitation requires sending HTTP requests to the vulnerable endpoint.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Unknown
Restart Required: No
Instructions:
No official patch available. Check netis-systems website for firmware updates. If update available: 1. Download firmware from vendor site 2. Log into router admin interface 3. Navigate to firmware upgrade section 4. Upload and apply new firmware 5. Verify version after reboot.
🔧 Temporary Workarounds
Disable Web Management Interface
allPrevent access to the vulnerable tracert page by disabling the web management interface or restricting access.
Access router CLI via SSH/Telnet
Navigate to web management settings
Disable HTTP/HTTPS management or restrict to specific IPs
Network Segmentation and ACLs
allIsolate affected routers and implement access control lists to restrict traffic to management interfaces.
Configure firewall rules to block external access to router web interface (typically port 80/443)
Implement VLAN segmentation
🧯 If You Can't Patch
- Immediately isolate affected routers from internet and critical internal networks
- Implement strict network monitoring and IDS/IPS rules to detect exploitation attempts
🔍 How to Verify
Check if Vulnerable:
Check router firmware version via web interface (typically under System Status or About page) or via SSH/Telnet using version command.Check Version:
Login to router web interface and check System Information, or via CLI: 'show version' or similar commandVerify Fix Applied:
Verify firmware version has been updated beyond v2.00.06. Test tracert functionality with safe payloads to confirm command execution is no longer possible.📡 Detection & Monitoring
Log Indicators:
- Unusual HTTP POST requests to /tracert or similar endpoints
- Suspicious command execution patterns in system logs
- Multiple failed login attempts followed by tracert requests
Network Indicators:
- HTTP traffic to router management interface containing shell metacharacters or command injection patterns
- Unusual outbound connections from router to external IPs
SIEM Query:
source="router_logs" AND (url="*tracert*" AND (payload="*;*" OR payload="*|*" OR payload="*`*" OR payload="*$(*"))