CVE-2025-57198

8.8 HIGH

📋 TL;DR

This vulnerability allows authenticated attackers to execute arbitrary commands on AVTECH SECURITY DGM1104 devices via the Machine.cgi endpoint. Organizations using affected AVTECH security products are at risk of complete system compromise.

💻 Affected Systems

Products:
  • AVTECH SECURITY Corporation DGM1104
Versions: FullImg-1015-1004-1006-1003
Operating Systems: Embedded Linux
Default Config Vulnerable: ⚠️ Yes
Notes: Requires authenticated access to the vulnerable endpoint

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Full system compromise leading to data theft, ransomware deployment, or integration into botnets

🟠

Likely Case

Unauthorized command execution allowing attackers to pivot to other systems or steal sensitive data

🟢

If Mitigated

Limited impact if proper network segmentation and authentication controls are in place

🌐 Internet-Facing: HIGH - Directly accessible endpoints allow remote exploitation
🏢 Internal Only: MEDIUM - Requires authenticated access but internal attackers could exploit

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ✅ No
Complexity: LOW

Exploit details available in GitHub repository; requires authentication but command injection is straightforward

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: http://avtech.com

Restart Required: No

Instructions:

Check vendor website for security updates; no official patch confirmed at this time

🔧 Temporary Workarounds

Network Access Control

linux

Restrict access to Machine.cgi endpoint using firewall rules

iptables -A INPUT -p tcp --dport [device_port] -s [trusted_ips] -j ACCEPT
iptables -A INPUT -p tcp --dport [device_port] -j DROP

Authentication Hardening

all

Implement strong authentication policies and monitor for suspicious login attempts

🧯 If You Can't Patch

  • Isolate affected devices in separate network segments with strict firewall rules
  • Implement network monitoring and IDS/IPS to detect exploitation attempts

🔍 How to Verify

Check if Vulnerable:

Check device version against affected version; test Machine.cgi endpoint with controlled input

Check Version:

Check device web interface or use vendor-specific CLI commands

Verify Fix Applied:

Verify vendor patch installation and test endpoint with same payloads

📡 Detection & Monitoring

Log Indicators:

  • Unusual command execution patterns in system logs
  • Multiple failed authentication attempts followed by successful login

Network Indicators:

  • Unusual outbound connections from device
  • Traffic to Machine.cgi endpoint with suspicious parameters

SIEM Query:

source="device_logs" AND (url="*Machine.cgi*" AND (param="*;*" OR param="*|*" OR param="*`*"))

🔗 References

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