CVE-2024-32283
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary commands on Tenda FH1203 routers by injecting malicious commands through the cmdinput parameter in the formexeCommand function. Attackers can gain full control of affected devices, potentially compromising network security. All users running vulnerable firmware versions are affected.
💻 Affected Systems
- Tenda FH1203 router
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete device takeover leading to persistent backdoor installation, network traffic interception, lateral movement to other devices, and participation in botnets.
Likely Case
Unauthorized command execution allowing configuration changes, credential theft, and installation of malware on the router.
If Mitigated
Limited impact if devices are behind firewalls with strict inbound filtering and network segmentation.
🎯 Exploit Status
Public proof-of-concept exists in GitHub repositories, making exploitation straightforward for attackers with basic skills.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Unknown
Restart Required: Yes
Instructions:
1. Check Tenda official website for firmware updates. 2. Download latest firmware for FH1203. 3. Access router admin interface. 4. Navigate to firmware upgrade section. 5. Upload and apply new firmware. 6. Reboot router.
🔧 Temporary Workarounds
Network Access Restriction
allRestrict access to router admin interface to trusted IP addresses only
Disable Remote Management
allTurn off remote administration features to prevent external access
🧯 If You Can't Patch
- Isolate affected routers in separate VLAN with strict firewall rules
- Implement network monitoring for suspicious command execution attempts
🔍 How to Verify
Check if Vulnerable:
Check router firmware version via admin interface. If version is V2.0.1.6, device is vulnerable.Check Version:
Check via router web interface at System Status or About pageVerify Fix Applied:
Verify firmware version has been updated to a version later than V2.0.1.6📡 Detection & Monitoring
Log Indicators:
- Unusual command execution in router logs
- Multiple failed login attempts followed by successful access
- Unexpected configuration changes
Network Indicators:
- Unusual outbound connections from router
- Traffic to known malicious IPs
- Port scanning originating from router
SIEM Query:
source="router_logs" AND ("formexeCommand" OR "cmdinput" OR suspicious_command_patterns)