CVE-2024-48419
📋 TL;DR
This CVE describes multiple command injection vulnerabilities in Edimax AC1200 routers that allow authenticated attackers to execute arbitrary shell commands with root privileges. Attackers can exploit these flaws through the web interface's diagnostic tools to gain complete control of affected routers. All users of Edimax BR-6476AC router version 1.06 are affected.
💻 Affected Systems
- Edimax AC1200 Wi-Fi 5 Dual-Band Router BR-6476AC
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete router compromise allowing attacker to intercept all network traffic, install persistent backdoors, pivot to internal networks, and use router as botnet node.
Likely Case
Router takeover leading to DNS hijacking, credential theft from network traffic, and installation of malware on connected devices.
If Mitigated
Limited impact if router is behind firewall with restricted web interface access and strong authentication.
🎯 Exploit Status
Exploitation requires web interface access. Attackers need to craft malicious requests to /goform/tracerouteDiagnosis, /goform/pingDiagnosis, or /goform/fromSysToolPingCmd endpoints.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check with vendor for updated firmware
Vendor Advisory: http://edimax.com
Restart Required: Yes
Instructions:
1. Log into router web interface. 2. Navigate to firmware update section. 3. Download latest firmware from Edimax website. 4. Upload and apply firmware update. 5. Reboot router after update completes.
🔧 Temporary Workarounds
Disable web interface access
allBlock external access to router web interface
iptables -A INPUT -p tcp --dport 80 -j DROP
iptables -A INPUT -p tcp --dport 443 -j DROP
Change default credentials
allUse strong unique credentials for router admin access
🧯 If You Can't Patch
- Place router behind firewall with strict inbound rules blocking web interface ports
- Implement network segmentation to isolate router from critical systems
🔍 How to Verify
Check if Vulnerable:
Check router firmware version in web interface under System Status or Administration sectionCheck Version:
curl -s http://router-ip/goform/getSysInfo | grep versionVerify Fix Applied:
Verify firmware version is updated beyond 1.06 and test diagnostic functions with safe inputs📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to /goform/tracerouteDiagnosis, /goform/pingDiagnosis, or /goform/fromSysToolPingCmd with shell metacharacters
- Multiple failed authentication attempts followed by diagnostic requests
Network Indicators:
- Unusual outbound connections from router IP
- DNS queries to suspicious domains from router
SIEM Query:
source="router_logs" AND (uri="/goform/tracerouteDiagnosis" OR uri="/goform/pingDiagnosis" OR uri="/goform/fromSysToolPingCmd") AND (request_body CONTAINS "|" OR request_body CONTAINS ";" OR request_body CONTAINS "`" OR request_body CONTAINS "$")