CVE-2025-57199

8.8 HIGH

📋 TL;DR

This vulnerability allows authenticated attackers to execute arbitrary commands on AVTECH SECURITY Corporation DGM1104 devices through the NetFailDetectD binary. Attackers can gain full system control by injecting malicious commands via crafted input. Organizations using affected AVTECH DGM1104 devices are at risk.

💻 Affected Systems

Products:
  • AVTECH SECURITY Corporation DGM1104
Versions: FullImg-1015-1004-1006-1003
Operating Systems: Embedded Linux-based firmware
Default Config Vulnerable: ⚠️ Yes
Notes: Requires authenticated access to exploit. The NetFailDetectD binary is part of the device firmware.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete system compromise allowing attackers to install persistent backdoors, exfiltrate sensitive data, pivot to other network systems, or render devices inoperable.

🟠

Likely Case

Attackers gain shell access to execute commands, potentially installing cryptocurrency miners, conducting reconnaissance, or establishing footholds for further attacks.

🟢

If Mitigated

Limited impact if network segmentation, strict access controls, and monitoring prevent exploitation attempts from reaching vulnerable systems.

🌐 Internet-Facing: HIGH
🏢 Internal Only: HIGH

🎯 Exploit Status

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

Exploit details and proof-of-concept are available in the GitHub repository. Requires valid credentials to exploit.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: http://avtech.com

Restart Required: No

Instructions:

1. Check AVTECH website for security advisories. 2. If patch available, download firmware update. 3. Backup device configuration. 4. Apply firmware update via web interface or CLI. 5. Verify update completed successfully.

🔧 Temporary Workarounds

Network Segmentation

all

Isolate DGM1104 devices from critical networks and internet access

Access Control Restrictions

linux

Limit administrative access to trusted IP addresses only

iptables -A INPUT -p tcp --dport 80 -s TRUSTED_IP -j ACCEPT
iptables -A INPUT -p tcp --dport 80 -j DROP

🧯 If You Can't Patch

  • Implement strict network segmentation to isolate vulnerable devices
  • Enforce strong authentication policies and monitor for suspicious login attempts

🔍 How to Verify

Check if Vulnerable:

Check device firmware version via web interface or SSH: cat /etc/version | grep FullImg

Check Version:

cat /etc/version

Verify Fix Applied:

Verify firmware version has been updated to a version not containing FullImg-1015-1004-1006-1003

📡 Detection & Monitoring

Log Indicators:

  • Unusual command execution in system logs
  • Multiple failed authentication attempts followed by successful login
  • Suspicious process creation from NetFailDetectD

Network Indicators:

  • Unusual outbound connections from DGM1104 devices
  • Traffic to known malicious IPs or domains
  • Unexpected SSH or reverse shell connections

SIEM Query:

source="dgm1104" AND (event="command_injection" OR process="NetFailDetectD" AND cmd="*;*" OR cmd="*|*")

🔗 References

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