CVE-2024-7580
📋 TL;DR
This CVE describes a critical OS command injection vulnerability in Alien Technology ALR-F800 RFID readers. Attackers can execute arbitrary commands remotely by manipulating the uploadedFile parameter in the /admin/system.html endpoint. All systems running affected firmware versions are vulnerable to complete compromise.
💻 Affected Systems
- Alien Technology ALR-F800 RFID Reader
📦 What is this software?
Alr F800 Firmware by Alientechnology
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise allowing attackers to execute arbitrary commands with system privileges, install persistent backdoors, pivot to internal networks, and potentially brick devices.
Likely Case
Remote code execution leading to data theft, device takeover for botnet participation, or disruption of RFID operations.
If Mitigated
Limited impact if network segmentation prevents external access and proper input validation is implemented.
🎯 Exploit Status
Exploit code is publicly available on GitHub. The vulnerability requires no authentication and uses simple command injection techniques.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available
Restart Required: No
Instructions:
No official patch available. Vendor was contacted but did not respond. Consider workarounds or replacement.
🔧 Temporary Workarounds
Network Access Control
linuxBlock external access to ALR-F800 web interface and restrict internal access to management networks only.
iptables -A INPUT -p tcp --dport 80 -s trusted_network -j ACCEPT
iptables -A INPUT -p tcp --dport 80 -j DROP
Web Application Firewall
allDeploy WAF rules to block requests containing command injection patterns to /admin/system.html
🧯 If You Can't Patch
- Isolate ALR-F800 devices on separate VLAN with strict firewall rules preventing outbound connections
- Implement network monitoring for unusual outbound connections from RFID reader devices
🔍 How to Verify
Check if Vulnerable:
Check firmware version via web interface at http://device-ip/ or attempt safe test: curl -X POST http://device-ip/admin/system.html -d 'uploadedFile=;echo test'Check Version:
Check web interface or use: curl -s http://device-ip/ | grep -i versionVerify Fix Applied:
No official fix available. Verify workarounds by testing that command injection attempts are blocked.📡 Detection & Monitoring
Log Indicators:
- HTTP POST requests to /admin/system.html with semicolons or command characters in parameters
- Unusual process execution from web server context
Network Indicators:
- Outbound connections from ALR-F800 devices to unusual destinations
- Unexpected network traffic patterns from RFID readers
SIEM Query:
source="web_logs" AND uri="/admin/system.html" AND (param="*;*" OR param="*|*" OR param="*`*" OR param="*$(*")