CVE-2024-57536
📋 TL;DR
This CVE describes a command injection vulnerability in the Linksys E8450 router's wizard_status component, allowing attackers to execute arbitrary commands on the device. It affects Linksys E8450 routers running firmware version 1.2.00.360516. Attackers could potentially gain full control of the router.
💻 Affected Systems
- Linksys E8450
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of the router allowing persistent backdoor installation, network traffic interception, credential theft, and lateral movement to connected devices.
Likely Case
Router takeover leading to DNS hijacking, credential harvesting, or botnet recruitment.
If Mitigated
Limited impact if router is behind firewall with restricted administrative access and network segmentation.
🎯 Exploit Status
Proof of concept available on GitHub; exploitation requires access to the wizard_status component.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Linksys for latest firmware updates
Vendor Advisory: https://www.linksys.com/support/
Restart Required: Yes
Instructions:
1. Log into router admin interface. 2. Navigate to Administration > Firmware Upgrade. 3. Check for and install latest firmware. 4. Reboot router after update.
🔧 Temporary Workarounds
Disable remote administration
allPrevents external access to vulnerable component
Restrict administrative access
allLimit admin interface access to trusted IP addresses only
🧯 If You Can't Patch
- Isolate router on separate VLAN with strict firewall rules
- Disable any unnecessary services and interfaces
🔍 How to Verify
Check if Vulnerable:
Check firmware version in router admin interface under Status > RouterCheck Version:
Login to router web interface and navigate to Status > RouterVerify Fix Applied:
Confirm firmware version is updated beyond v1.2.00.360516📡 Detection & Monitoring
Log Indicators:
- Unusual command execution in system logs
- Multiple failed login attempts to admin interface
- Suspicious processes running
Network Indicators:
- Unexpected outbound connections from router
- DNS queries to malicious domains
- Port scanning originating from router
SIEM Query:
source="router_logs" AND (command="*;*" OR command="*|*" OR command="*`*" OR command="*$(*")