CVE-2024-48286
📋 TL;DR
CVE-2024-48286 is a command injection vulnerability in Linksys E3000 routers that allows attackers to execute arbitrary commands on the device. This affects Linksys E3000 router users running vulnerable firmware. Successful exploitation could lead to complete device compromise.
💻 Affected Systems
- Linksys E3000
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full remote code execution leading to router takeover, credential theft, network pivoting, and persistent backdoor installation.
Likely Case
Router compromise allowing network traffic interception, DNS hijacking, and credential harvesting from connected devices.
If Mitigated
Limited impact if device is behind firewall with restricted WAN access and strong network segmentation.
🎯 Exploit Status
Public proof-of-concept available on GitHub. Exploitation requires network access to router's web interface.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Unknown
Restart Required: No
Instructions:
No official patch available. Check Linksys support for firmware updates. Consider replacing with supported hardware.
🔧 Temporary Workarounds
Disable Remote Management
allPrevent external access to router web interface
Access router admin interface > Administration > Management > Disable Remote Management
Network Segmentation
allIsolate router management interface to trusted network
Configure firewall rules to restrict access to router IP on ports 80/443 to trusted IPs only
🧯 If You Can't Patch
- Replace router with supported hardware that receives security updates
- Place router behind dedicated firewall with strict inbound rules
🔍 How to Verify
Check if Vulnerable:
Check router firmware version in admin interface under Status > RouterCheck Version:
curl -s http://router-ip/status.cgi | grep firmware_versionVerify Fix Applied:
Verify firmware version is newer than 1.0.06.002_US📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to /apply.cgi with ping parameters
- Command execution patterns in system logs
Network Indicators:
- Unusual outbound connections from router
- DNS queries to suspicious domains from router
SIEM Query:
source="router-logs" AND (uri="/apply.cgi" AND params CONTAINS "ping")