CVE-2024-52018
📋 TL;DR
This CVE describes a command injection vulnerability in Netgear XR300 routers that allows attackers to execute arbitrary operating system commands by sending specially crafted requests to the genie_dyn.cgi endpoint. Attackers can potentially take full control of affected routers. All users running Netgear XR300 firmware version 1.0.3.78 are affected.
💻 Affected Systems
- Netgear XR300
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of the router allowing attackers to install persistent backdoors, intercept all network traffic, pivot to internal networks, and use the router for botnet activities.
Likely Case
Router takeover leading to network traffic interception, DNS hijacking, credential theft, and use as a foothold for internal network attacks.
If Mitigated
Limited impact if router is behind firewall with restricted WAN access and proper network segmentation is in place.
🎯 Exploit Status
Exploit requires network access to the router's web interface. The GitHub reference contains technical details about the vulnerability.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Netgear security advisory for latest patched version
Vendor Advisory: https://www.netgear.com/about/security/
Restart Required: Yes
Instructions:
1. Log into Netgear router admin interface. 2. Navigate to Advanced > Administration > Firmware Update. 3. Check for updates and apply latest firmware. 4. Reboot router after update completes.
🔧 Temporary Workarounds
Disable Remote Management
allPrevent external access to router administration interface
Restrict Admin Access
allLimit admin interface access to specific IP addresses only
🧯 If You Can't Patch
- Isolate router on separate VLAN with strict firewall rules
- Implement network monitoring for suspicious traffic to/from router
🔍 How to Verify
Check if Vulnerable:
Check router firmware version in admin interface under Advanced > Administration > Firmware UpdateCheck Version:
Login to router web interface and navigate to firmware settingsVerify Fix Applied:
Verify firmware version is newer than v1.0.3.78 after update📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to genie_dyn.cgi
- Suspicious command execution in router logs
- Multiple failed login attempts followed by successful access
Network Indicators:
- Unusual outbound connections from router
- Traffic to known malicious IPs from router
- DNS queries to suspicious domains
SIEM Query:
source="router_logs" AND (uri="/genie_dyn.cgi" OR cmd="*" OR process="sh" OR process="bash")