CVE-2024-7578
📋 TL;DR
This critical vulnerability in Alien Technology ALR-F800 RFID readers allows remote attackers to execute arbitrary commands via the /var/www/cmd.php endpoint due to improper authorization. Attackers can exploit this to gain unauthorized access and control affected devices. All systems running ALR-F800 firmware up to version 19.10.24.00 are vulnerable.
💻 Affected Systems
- Alien Technology ALR-F800 RFID Reader
📦 What is this software?
Alr F800 Firmware by Alientechnology
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to execute arbitrary commands, steal sensitive data, deploy ransomware, or pivot to other network systems.
Likely Case
Unauthorized command execution leading to device takeover, data exfiltration, or disruption of RFID operations.
If Mitigated
Limited impact with proper network segmentation and access controls preventing exploitation attempts.
🎯 Exploit Status
Exploit details are publicly available on GitHub, making this easily weaponizable by attackers with minimal technical skill.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: None available - vendor did not respond to disclosure
Restart Required: No
Instructions:
No official patch available. Monitor vendor communications for updates. Consider workarounds or replacement if vendor remains unresponsive.
🔧 Temporary Workarounds
Block cmd.php Access
linuxRestrict access to the vulnerable cmd.php endpoint using web server configuration or firewall rules.
# For Apache: Add to .htaccess or virtual host config
<Files "cmd.php">
Order Deny,Allow
Deny from all
</Files>
# For nginx: Add to server block
location ~ /cmd\.php$ {
deny all;
return 403;
}
Network Segmentation
allIsolate ALR-F800 devices in separate VLANs with strict firewall rules limiting inbound access.
# Example iptables rule to block external access
sudo iptables -A INPUT -p tcp --dport 80 -s ! 192.168.1.0/24 -j DROP
# Replace 192.168.1.0/24 with your management network
🧯 If You Can't Patch
- Implement strict network segmentation to isolate ALR-F800 devices from critical networks
- Deploy web application firewall (WAF) rules to block requests to cmd.php endpoint
🔍 How to Verify
Check if Vulnerable:
Check firmware version via web interface at http://device-ip/ or SSH if enabled. Version 19.10.24.00 or earlier indicates vulnerability.Check Version:
curl -s http://device-ip/ | grep -i 'firmware\|version' OR ssh admin@device-ip 'cat /etc/version'Verify Fix Applied:
Test if cmd.php endpoint is accessible and responds to unauthorized commands. If blocked or patched, attempts should fail.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to /var/www/cmd.php
- Commands executed via web interface from unauthorized IPs
- System command execution logs showing unexpected processes
Network Indicators:
- HTTP requests to cmd.php endpoint with command parameters
- Unusual outbound connections from ALR-F800 devices
SIEM Query:
source="web_logs" AND url="/cmd.php" AND (method="POST" OR parameters CONTAINS "cmd=")