CVE-2024-44386
📋 TL;DR
A buffer overflow vulnerability in Tenda FH1206 routers allows attackers to execute arbitrary code by sending specially crafted requests to the fromSetIpBind function. This affects users running vulnerable firmware versions on these devices. Successful exploitation could lead to complete device compromise.
💻 Affected Systems
- Tenda FH1206
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to full router compromise, credential theft, network traffic interception, and lateral movement to connected devices.
Likely Case
Router compromise allowing attackers to modify DNS settings, intercept traffic, or use the device as a pivot point for further attacks.
If Mitigated
Limited impact if device is behind firewall with restricted WAN access and proper network segmentation.
🎯 Exploit Status
Proof of concept available on GitHub. Exploitation appears straightforward based on available details.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: Yes
Instructions:
1. Check Tenda website for firmware updates
2. Download latest firmware for FH1206
3. Access router web interface
4. Navigate to System Tools > Firmware Upgrade
5. Upload and install new firmware
6. Reboot router
🔧 Temporary Workarounds
Disable remote management
allPrevent external access to router web interface
Network segmentation
allIsolate router management interface to separate VLAN
🧯 If You Can't Patch
- Replace vulnerable device with supported model
- Implement strict firewall rules blocking all WAN access to router management interface
🔍 How to Verify
Check if Vulnerable:
Check router firmware version via web interface at System Status > Device InformationCheck Version:
Not applicable - check via web interfaceVerify Fix Applied:
Verify firmware version is newer than V1.2.0.8(8155)_EN📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to fromSetIpBind endpoint
- Multiple failed login attempts followed by buffer overflow patterns
Network Indicators:
- Unusual traffic patterns to router management interface
- Suspicious payloads in HTTP requests
SIEM Query:
source="router_logs" AND (uri="*fromSetIpBind*" OR message="*buffer*" OR message="*overflow*")