CVE-2024-22544
📋 TL;DR
This vulnerability allows authenticated attackers to execute arbitrary code on Linksys Router E1700 devices via the setDateTime function. Attackers with valid credentials can gain full control of the router. Only Linksys Router E1700 version 1.0.04 (build 3) is affected.
💻 Affected Systems
- Linksys Router E1700
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of router with persistent backdoor installation, network traffic interception, lateral movement to connected devices, and router bricking.
Likely Case
Router takeover leading to DNS hijacking, credential theft from network traffic, and botnet recruitment.
If Mitigated
Limited impact if strong authentication and network segmentation prevent attacker access to router management interface.
🎯 Exploit Status
Exploit requires authentication but is straightforward once credentials are obtained. Public technical details available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: Yes
Instructions:
1. Check Linksys support site for firmware updates. 2. If update available, download and install via router web interface. 3. Reboot router after installation.
🔧 Temporary Workarounds
Disable Remote Management
allPrevent external access to router administration interface
Change Default Credentials
allUse strong, unique admin password
🧯 If You Can't Patch
- Replace router with supported model
- Isolate router on separate VLAN with strict firewall rules
🔍 How to Verify
Check if Vulnerable:
Access router web interface > Administration > Firmware Upgrade > Check current version matches 1.0.04 (build 3)Check Version:
curl -s http://router-ip/status.cgi | grep firmware_versionVerify Fix Applied:
Verify firmware version is different from 1.0.04 (build 3)📡 Detection & Monitoring
Log Indicators:
- Unusual setDateTime API calls
- Multiple failed login attempts followed by successful login
- Unexpected process execution in router logs
Network Indicators:
- Unusual outbound connections from router
- DNS queries to suspicious domains
- Unexpected port openings on router
SIEM Query:
source="router_logs" AND ("setDateTime" OR "command injection")