CVE-2025-57200
📋 TL;DR
This CVE describes an authenticated command injection vulnerability in AVTECH SECURITY Corporation's DGM1104 FullImg-1015-1004-1006-1003 firmware. Attackers with valid credentials can execute arbitrary system commands by sending specially crafted input to the test_mail function. Organizations using affected AVTECH security devices are at risk.
💻 Affected Systems
- AVTECH SECURITY Corporation DGM1104
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise allowing attackers to install malware, pivot to other network segments, steal sensitive data, or disrupt security monitoring functions.
Likely Case
Local privilege escalation leading to unauthorized access to device configuration, network reconnaissance, or disruption of security device functionality.
If Mitigated
Limited impact if proper network segmentation and access controls prevent authenticated attackers from reaching the vulnerable interface.
🎯 Exploit Status
Exploit requires valid credentials but command injection vulnerabilities are typically easy to weaponize once authentication is bypassed or obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: http://avtech.com
Restart Required: Yes
Instructions:
1. Check AVTECH website for security advisories
2. Download latest firmware if available
3. Backup current configuration
4. Upload and apply firmware update
5. Verify functionality post-update
🔧 Temporary Workarounds
Network Access Restriction
linuxRestrict access to the device management interface to trusted IP addresses only
iptables -A INPUT -p tcp --dport [DEVICE_PORT] -s [TRUSTED_IP] -j ACCEPT
iptables -A INPUT -p tcp --dport [DEVICE_PORT] -j DROP
Disable Vulnerable Function
allDisable or restrict access to the test_mail function if possible in device configuration
🧯 If You Can't Patch
- Implement strict network segmentation to isolate affected devices from critical systems
- Enforce strong authentication policies and regularly rotate credentials
🔍 How to Verify
Check if Vulnerable:
Check device firmware version via web interface or SSH: cat /etc/version or similar commandCheck Version:
ssh admin@device_ip 'cat /etc/version' or check web interface system infoVerify Fix Applied:
Verify firmware version has been updated and test mail function no longer accepts shell metacharacters📡 Detection & Monitoring
Log Indicators:
- Unusual command execution in system logs
- Multiple failed authentication attempts followed by test_mail function calls
- Suspicious shell commands in mail-related logs
Network Indicators:
- Unusual outbound connections from security device
- Traffic to unexpected ports from device management interface
SIEM Query:
source="device_logs" AND ("test_mail" OR "mail test") AND (cmd.exe OR bash OR sh OR | OR ; OR $() OR `)