CVE-2025-3002
📋 TL;DR
This critical vulnerability in Digital China DCME-520 devices allows remote attackers to execute arbitrary operating system commands by manipulating the type_name parameter in a specific PHP file. The vulnerability affects all versions up to March 20, 2025, and can be exploited without authentication. This enables complete system compromise of affected devices.
💻 Affected Systems
- Digital China DCME-520
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise allowing attacker to install persistent backdoors, exfiltrate sensitive data, pivot to internal networks, or use device as part of botnet.
Likely Case
Initial foothold leading to credential theft, lateral movement within network, or deployment of ransomware/malware.
If Mitigated
Limited impact if device is isolated with strict network controls, though command execution still possible.
🎯 Exploit Status
Public exploit code available on GitHub; simple HTTP request with command injection payload.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Versions after 20250320
Vendor Advisory: Not provided in references
Restart Required: No
Instructions:
1. Contact Digital China for patched firmware. 2. Backup configuration. 3. Upload and apply firmware update. 4. Verify patch application.
🔧 Temporary Workarounds
Block Access to Vulnerable Endpoint
allRestrict access to the vulnerable PHP file using web server configuration or firewall rules.
# Example for Apache: RewriteRule ^/usr/local/WWW/function/audit/newstatistics/mon_merge_stat_hist.php - [F,L]
# Example firewall rule: iptables -A INPUT -p tcp --dport 80 -m string --string "mon_merge_stat_hist.php" --algo bm -j DROP
Input Validation Filter
allAdd input validation to sanitize type_name parameter before processing.
# PHP example: if (!preg_match('/^[a-zA-Z0-9_]+$/', $_GET['type_name'])) { die('Invalid input'); }
🧯 If You Can't Patch
- Isolate device in separate VLAN with strict firewall rules allowing only necessary traffic
- Implement web application firewall (WAF) with command injection detection rules
🔍 How to Verify
Check if Vulnerable:
Test by sending HTTP GET request to /usr/local/WWW/function/audit/newstatistics/mon_merge_stat_hist.php with type_name parameter containing command injection payload (e.g., type_name=test;id).Check Version:
Check device web interface or console for firmware version; should be later than 20250320.Verify Fix Applied:
Attempt exploitation with same payload; should receive error or sanitized response instead of command output.📡 Detection & Monitoring
Log Indicators:
- HTTP requests to mon_merge_stat_hist.php with shell metacharacters (;, |, &, $, `) in parameters
- Unusual process execution from web server user
- Failed command execution attempts in web logs
Network Indicators:
- HTTP requests containing command injection patterns to the vulnerable endpoint
- Outbound connections from device to unusual external IPs
SIEM Query:
source="web_logs" AND uri="*mon_merge_stat_hist.php*" AND (param="*;*" OR param="*|*" OR param="*`*" OR param="*$(*")