CVE-2024-57214
📋 TL;DR
This CVE describes a command injection vulnerability in TOTOLINK A6000R routers where an attacker can execute arbitrary commands via the devname parameter in the reset_wifi function. This affects users of TOTOLINK A6000R routers running vulnerable firmware versions. Successful exploitation could lead to complete device compromise.
💻 Affected Systems
- TOTOLINK A6000R
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full router compromise allowing attacker to intercept all network traffic, modify router settings, install persistent backdoors, pivot to internal network devices, or use the router for botnet activities.
Likely Case
Router takeover enabling network traffic monitoring, DNS hijacking, credential theft from unencrypted traffic, and disruption of network services.
If Mitigated
Limited impact if router is behind firewall with strict inbound rules, uses strong admin credentials, and has no exposed management interfaces.
🎯 Exploit Status
Exploit requires access to the web management interface. The GitHub reference shows proof-of-concept code.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: Yes
Instructions:
1. Check TOTOLINK website for firmware updates
2. Download latest firmware for A6000R
3. Access router admin panel
4. Navigate to firmware upgrade section
5. Upload and apply new firmware
6. Reboot router
🔧 Temporary Workarounds
Disable remote management
allPrevent external access to router web interface
Change default credentials
allUse strong, unique admin password
🧯 If You Can't Patch
- Isolate router on separate VLAN with strict firewall rules
- Implement network segmentation to limit router access to trusted management hosts only
🔍 How to Verify
Check if Vulnerable:
Check router firmware version via admin panel. If version is V1.0.1-B20201211.2000 or earlier, assume vulnerable.Check Version:
Login to router web interface and check System Status or Firmware Information pageVerify Fix Applied:
Verify firmware version has been updated to a version after the vulnerable release.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to reset_wifi endpoint
- Suspicious commands in system logs
- Multiple failed login attempts
Network Indicators:
- Unusual outbound connections from router
- DNS queries to suspicious domains
- Unexpected port scans originating from router
SIEM Query:
source="router_logs" AND (uri="/reset_wifi" OR command="*;*" OR command="*|*")