CVE-2024-52022
📋 TL;DR
This CVE describes a command injection vulnerability in specific Netgear router models via the wlg_adv.cgi component's apmode_gateway parameter. Attackers can execute arbitrary operating system commands through specially crafted requests, potentially compromising the router. Users of affected Netgear R8500, XR300, R7000P, and R6400 v2 routers with vulnerable firmware versions are impacted.
💻 Affected Systems
- Netgear R8500
- Netgear XR300
- Netgear R7000P
- Netgear R6400 v2
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete router compromise 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 enabling traffic interception, DNS hijacking, credential theft, and lateral movement to connected devices.
If Mitigated
Limited impact if routers are behind firewalls with strict inbound filtering and network segmentation prevents lateral movement.
🎯 Exploit Status
Exploitation requires access to the web administration interface but is straightforward once access is obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Netgear security advisory for latest patched versions
Vendor Advisory: https://www.netgear.com/about/security/
Restart Required: Yes
Instructions:
1. Log into router web interface. 2. Navigate to Administration > Firmware Update. 3. Check for updates. 4. If update available, download and install. 5. Reboot router after update completes.
🔧 Temporary Workarounds
Disable Remote Management
allPrevent external access to router administration interface
Restrict Admin Interface Access
allLimit which IP addresses can access the router web interface
🧯 If You Can't Patch
- Isolate affected routers in separate VLAN with strict firewall rules
- Implement network monitoring for unusual outbound connections from routers
🔍 How to Verify
Check if Vulnerable:
Check router firmware version in web interface under Advanced > Administration > Router StatusCheck Version:
Not applicable - use web interfaceVerify Fix Applied:
Verify firmware version matches or exceeds patched versions listed in Netgear advisory📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to wlg_adv.cgi
- Suspicious commands in router logs
- Multiple failed login attempts
Network Indicators:
- Unexpected outbound connections from router
- DNS queries to suspicious domains
- Unusual traffic patterns
SIEM Query:
source="router_logs" AND (uri="*/wlg_adv.cgi*" OR command="*;*" OR command="*|*" OR command="*`*")