CVE-2024-57020
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary operating system commands on TOTOLINK X5000R routers by injecting malicious commands through the sMinute parameter in the setWiFiScheduleCfg function. Attackers can potentially gain full control of affected devices. Users running vulnerable firmware versions are affected.
💻 Affected Systems
- TOTOLINK X5000R
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of router with ability to pivot to internal network, intercept/modify traffic, install persistent malware, or use device as botnet node.
Likely Case
Remote code execution leading to router configuration changes, credential theft, or denial of service.
If Mitigated
Limited impact if device is behind firewall with restricted WAN access and proper network segmentation.
🎯 Exploit Status
Exploitation requires network access to router interface; authentication status unclear from available information.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check vendor for latest firmware version
Vendor Advisory: https://www.totolink.net/
Restart Required: Yes
Instructions:
1. Visit TOTOLINK support website. 2. Download latest firmware for X5000R. 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 WiFi Schedule Feature
allRemove or disable the vulnerable setWiFiScheduleCfg functionality if not needed
Network Access Restrictions
allRestrict access to router admin interface to trusted IP addresses only
🧯 If You Can't Patch
- Isolate router on separate VLAN with strict firewall rules
- Implement network monitoring for unusual command execution patterns
🔍 How to Verify
Check if Vulnerable:
Check router firmware version in admin interface under System StatusCheck Version:
Login to router web interface and navigate to System Status pageVerify Fix Applied:
Verify firmware version is newer than V9.1.0cu.2350_B20230313📡 Detection & Monitoring
Log Indicators:
- Unusual command execution in system logs
- Multiple failed authentication attempts to admin interface
- Unexpected configuration changes
Network Indicators:
- Unusual outbound connections from router
- Traffic patterns indicating command and control activity
- Port scanning originating from router
SIEM Query:
source="router_logs" AND (command_injection OR "setWiFiScheduleCfg" OR unusual_system_commands)