CVE-2024-24330
📋 TL;DR
This CVE describes a command injection vulnerability in TOTOLINK A3300R routers that allows attackers to execute arbitrary commands on the device. Attackers can exploit this by injecting malicious commands through the port or enable parameters in the setRemoteCfg function. This affects users of TOTOLINK A3300R routers with vulnerable firmware versions.
💻 Affected Systems
- TOTOLINK A3300R
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of the router allowing full remote control, credential theft, network pivoting, and persistent backdoor installation.
Likely Case
Router takeover leading to DNS hijacking, traffic interception, credential harvesting, and botnet recruitment.
If Mitigated
Limited impact if router is behind firewall with restricted WAN access and proper network segmentation.
🎯 Exploit Status
Exploit details are publicly available in GitHub repositories, making weaponization likely.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Unknown
Restart Required: Yes
Instructions:
1. Check TOTOLINK website for firmware updates
2. Download latest firmware for A3300R
3. Access router admin interface
4. Navigate to firmware upgrade section
5. Upload and apply new firmware
6. Reboot router
🔧 Temporary Workarounds
Disable Remote Management
allPrevent external access to vulnerable interface
Network Segmentation
allIsolate router on separate VLAN with restricted access
🧯 If You Can't Patch
- Replace affected routers with patched or alternative models
- Implement strict firewall rules blocking all WAN access to router management interfaces
🔍 How to Verify
Check if Vulnerable:
Check router firmware version in admin interface under System Status or Firmware Upgrade sectionCheck Version:
Login to router web interface and check firmware version in system settingsVerify Fix Applied:
Verify firmware version has been updated to a version newer than V17.0.0cu.557_B20221024📡 Detection & Monitoring
Log Indicators:
- Unusual command execution in system logs
- Multiple failed authentication attempts to admin interface
- Suspicious configuration changes
Network Indicators:
- Unexpected outbound connections from router
- DNS queries to suspicious domains
- Port scanning originating from router
SIEM Query:
source="router_logs" AND (event="command_injection" OR event="unauthorized_config_change")