CVE-2024-10282
📋 TL;DR
A critical stack-based buffer overflow vulnerability in Tenda RX9 and RX9 Pro routers allows remote attackers to execute arbitrary code by sending specially crafted requests to the SetVirtualServerCfg function. This affects users running vulnerable firmware versions on these router models. Successful exploitation could lead to complete device compromise.
💻 Affected Systems
- Tenda RX9
- Tenda RX9 Pro
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to full router compromise, persistence installation, network traffic interception, and lateral movement to connected devices.
Likely Case
Router takeover enabling DNS hijacking, credential theft, botnet recruitment, or denial of service.
If Mitigated
Limited impact if routers are behind firewalls with strict inbound filtering, though internal network exposure remains.
🎯 Exploit Status
Public exploit details available on Gitee. Remote exploitation requires no authentication. Buffer overflow manipulation is well-documented.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://www.tenda.com.cn/
Restart Required: Yes
Instructions:
1. Check Tenda website for firmware updates. 2. Download latest firmware for your model. 3. Log into router admin 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 routers in separate VLAN with strict firewall rules
🧯 If You Can't Patch
- Replace vulnerable routers with patched or different models
- Implement network-based intrusion prevention system (IPS) with buffer overflow detection rules
🔍 How to Verify
Check if Vulnerable:
Check router firmware version in web interface: System Status > Firmware Version. If version is 22.03.02.10 or 22.03.02.20, device is vulnerable.Check Version:
curl -s http://router-ip/goform/GetModuleStatus | grep versionVerify Fix Applied:
After firmware update, verify version is higher than 22.03.02.20. Test by attempting to access /goform/SetVirtualServerCfg with monitoring for crashes.📡 Detection & Monitoring
Log Indicators:
- Multiple POST requests to /goform/SetVirtualServerCfg
- Router crash/reboot logs
- Unusual process creation in router logs
Network Indicators:
- HTTP POST requests to router IP on port 80/443 with large 'list' parameter
- Abnormal traffic patterns from router
SIEM Query:
source="router_logs" AND (uri="/goform/SetVirtualServerCfg" OR message="buffer overflow" OR message="segmentation fault")