CVE-2025-57201
📋 TL;DR
This CVE describes an authenticated command injection vulnerability in AVTECH SECURITY Corporation's DGM1104 FullImg-1015-1004-1006-1003 SMB server function. Attackers with valid credentials can execute arbitrary commands on affected systems by sending crafted inputs. Organizations using these specific AVTECH security devices are at risk.
💻 Affected Systems
- AVTECH SECURITY Corporation DGM1104 FullImg-1015-1004-1006-1003
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise allowing attackers to install persistent backdoors, exfiltrate sensitive data, pivot to other network segments, or disrupt security monitoring functions.
Likely Case
Attackers gain shell access to the security device, potentially disabling security functions, accessing network traffic, or using the device as a foothold for lateral movement.
If Mitigated
Limited impact due to network segmentation, strong authentication controls, and monitoring that detects unusual SMB activity.
🎯 Exploit Status
Exploit details available in GitHub repository. Requires authentication but command injection is straightforward once authenticated.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: http://avtech.com
Restart Required: No
Instructions:
1. Check AVTECH website for security advisories. 2. If patch available, download from vendor portal. 3. Apply firmware update following vendor instructions. 4. Verify update completed successfully.
🔧 Temporary Workarounds
Disable SMB Server
allTurn off SMB server functionality if not required for operations
Specific commands depend on device interface - use web GUI or CLI to disable SMB services
Restrict SMB Access
allLimit SMB server access to specific trusted IP addresses only
Configure firewall rules to restrict SMB (port 445) access to necessary management systems
🧯 If You Can't Patch
- Segment affected devices on isolated network VLANs with strict firewall rules
- Implement multi-factor authentication and strong password policies for all device accounts
🔍 How to Verify
Check if Vulnerable:
Check device firmware version against vendor advisory. Test with controlled exploit if authorized.Check Version:
Check via device web interface or SSH to device (vendor-specific command)Verify Fix Applied:
Verify firmware version matches patched version from vendor. Test SMB function with safe payloads.📡 Detection & Monitoring
Log Indicators:
- Unusual SMB authentication patterns
- SMB requests with shell metacharacters or unusual parameters
- Unexpected process execution from SMB service
Network Indicators:
- SMB traffic to/from security devices with unusual payloads
- Outbound connections from security devices to unexpected destinations
SIEM Query:
source="avtech_device" AND (protocol="SMB" AND (command="*cmd*" OR command="*sh*" OR command="*bash*"))