CVE-2024-30568
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary commands on Netgear R6850 routers by injecting malicious input into the c4-IPAddr parameter. Attackers can gain full control of the device, potentially compromising the entire network. Only Netgear R6850 routers running firmware version 1.1.0.88 are affected.
💻 Affected Systems
- Netgear R6850
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete device takeover leading to network compromise, data exfiltration, ransomware deployment, or use as a botnet node.
Likely Case
Router compromise allowing traffic interception, credential theft, and lateral movement to connected devices.
If Mitigated
Limited impact if device is isolated, properly segmented, and has strict network controls.
🎯 Exploit Status
Public proof-of-concept demonstrates exploitation via HTTP request to the ping_test functionality.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://www.netgear.com/about/security/
Restart Required: Yes
Instructions:
1. Check Netgear security advisory page for updates. 2. If patch available, download firmware. 3. Log into router admin interface. 4. Navigate to firmware update section. 5. Upload and apply new firmware. 6. Reboot router.
🔧 Temporary Workarounds
Disable remote management
allPrevent external access to router management interface
Network segmentation
allIsolate router management interface to trusted network only
🧯 If You Can't Patch
- Replace affected router with updated model
- Implement strict network access controls and monitor for exploitation attempts
🔍 How to Verify
Check if Vulnerable:
Check router firmware version via admin interface. If version is 1.1.0.88, device is vulnerable.Check Version:
Log into router web interface and check firmware version in Administration or Advanced settings.Verify Fix Applied:
Verify firmware version has been updated to a version later than 1.1.0.88.📡 Detection & Monitoring
Log Indicators:
- Unusual ping commands in router logs
- Multiple failed login attempts followed by successful access
- Unexpected system command execution
Network Indicators:
- Unusual outbound connections from router
- Traffic to known malicious IPs
- Port scanning originating from router
SIEM Query:
source="router_logs" AND ("ping_test" OR "c4-IPAddr" OR command_injection)🔗 References
- https://github.com/funny-mud-peee/IoT-vuls/blob/main/netgear%20R6850/Netgear-R6850%20V1.1.0.88%20Command%20Injection%28ping_test%29.md
- https://www.netgear.com/about/security/
- https://github.com/funny-mud-peee/IoT-vuls/blob/main/netgear%20R6850/Netgear-R6850%20V1.1.0.88%20Command%20Injection%28ping_test%29.md
- https://www.netgear.com/about/security/
