CVE-2024-57015
📋 TL;DR
This CVE describes an OS command injection vulnerability in TOTOLINK X5000R routers where attackers can execute arbitrary commands via the 'hour' parameter in the setScheduleCfg function. This allows remote code execution with the privileges of the affected service. Users of TOTOLINK X5000R routers with vulnerable firmware are affected.
💻 Affected Systems
- TOTOLINK X5000R
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full router compromise allowing attackers to intercept traffic, modify configurations, install persistent backdoors, pivot to internal networks, or use the device for botnet activities.
Likely Case
Router takeover enabling traffic monitoring, DNS hijacking, credential theft from connected devices, and lateral movement within the network.
If Mitigated
Limited impact if network segmentation isolates the router and proper access controls prevent exploitation attempts.
🎯 Exploit Status
Exploitation requires authentication to the router's web interface. The GitHub reference contains proof-of-concept details.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check TOTOLINK for updated firmware
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 apply new firmware. 6. Reboot router.
🔧 Temporary Workarounds
Disable Remote Management
allPrevent external access to router web interface
Restrict Admin Access
allLimit admin interface access to specific IP addresses
🧯 If You Can't Patch
- Isolate router on separate VLAN with strict firewall rules
- Implement network monitoring for suspicious command execution attempts
🔍 How to Verify
Check if Vulnerable:
Check router firmware version in web interface under System StatusCheck Version:
Login to router web interface and check 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 followed by schedule configuration changes
Network Indicators:
- Unusual outbound connections from router
- Traffic patterns indicating command and control communication
SIEM Query:
source="router_logs" AND ("setScheduleCfg" OR "hour=" AND command_execution)