CVE-2024-52782
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary code on affected DCME devices via a specific PHP file. It affects multiple DCME series devices running vulnerable firmware versions. Attackers can potentially gain full control of the device without authentication.
💻 Affected Systems
- DCME-320
- DCME-520
- DCME-320-L
- DCME-720
📦 What is this software?
Dcme 320 Firmware by Dcnetworks
Dcme 520 Firmware by Dcnetworks
Dcme 720 Firmware by Dcnetworks
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to install persistent backdoors, steal sensitive data, pivot to internal networks, or use device as part of botnet.
Likely Case
Attackers gain shell access to device, modify configurations, install cryptocurrency miners or other malware, and potentially move laterally within network.
If Mitigated
Attack blocked at network perimeter; isolated device compromise contained with minimal data exposure.
🎯 Exploit Status
Public technical details available showing exploitation via HTTP POST request to /function/audit/newstatistics/mon_stat_hist_new.php with crafted parameters.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Unknown
Restart Required: No
Instructions:
No official patch available. Check vendor website for firmware updates. If unavailable, implement workarounds immediately.
🔧 Temporary Workarounds
Block Vulnerable Endpoint
allUse web application firewall or reverse proxy to block access to /function/audit/newstatistics/mon_stat_hist_new.php
# Example nginx location block:
location ~ ^/function/audit/newstatistics/mon_stat_hist_new\.php$ {
deny all;
return 403;
}
# Example Apache .htaccess:
<Files "mon_stat_hist_new.php">
Order Allow,Deny
Deny from all
</Files>
Network Segmentation
linuxIsolate DCME devices in separate VLAN with strict firewall rules limiting inbound access.
# Example iptables rule to restrict access:
iptables -A INPUT -p tcp --dport 80 -s trusted_network -j ACCEPT
iptables -A INPUT -p tcp --dport 80 -j DROP
🧯 If You Can't Patch
- Immediately remove internet-facing access to affected devices
- Implement strict network segmentation and monitor for suspicious traffic to/from DCME devices
🔍 How to Verify
Check if Vulnerable:
Check device firmware version via web interface (typically System > About or similar). Compare against affected versions list.Check Version:
curl -s http://device-ip/ | grep -i 'version\|firmware' OR check web interface manuallyVerify Fix Applied:
Test if /function/audit/newstatistics/mon_stat_hist_new.php endpoint is accessible and returns 403/404 after applying workarounds.📡 Detection & Monitoring
Log Indicators:
- HTTP requests to /function/audit/newstatistics/mon_stat_hist_new.php with POST parameters
- Unusual process execution or file creation on DCME device
- Unexpected outbound connections from DCME device
Network Indicators:
- HTTP POST requests to vulnerable endpoint with suspicious parameters
- Unusual traffic patterns from DCME device IP
SIEM Query:
source="dcmeweb" AND url="*/function/audit/newstatistics/mon_stat_hist_new.php" AND method="POST"