CVE-2025-1800
📋 TL;DR
This critical vulnerability in D-Link DAR-7000 allows remote attackers to execute arbitrary commands via command injection in the get_ip_addr_details function. Attackers can exploit this by manipulating the ethname parameter in HTTP POST requests. Only affects DAR-7000 version 3.2, which is no longer supported by the vendor.
💻 Affected Systems
- D-Link DAR-7000
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise allowing attacker to execute arbitrary commands with system privileges, install malware, pivot to internal networks, and maintain persistent access.
Likely Case
Remote code execution leading to device takeover, data exfiltration, or use as a foothold for further network attacks.
If Mitigated
Limited impact if device is isolated, has strict network controls, and command execution is restricted via security mechanisms.
🎯 Exploit Status
Exploit details have been publicly disclosed on GitHub. The vulnerability requires no authentication and has simple exploitation vectors.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: None available
Vendor Advisory: https://www.dlink.com/
Restart Required: No
Instructions:
No official patch available as product is end-of-life. Consider workarounds or replacement.
🔧 Temporary Workarounds
Network Segmentation
allIsolate DAR-7000 devices from untrusted networks and restrict access to management interfaces.
Web Application Firewall Rules
allBlock or sanitize requests to /view/vpn/sxh_vpn/sxh_vpnlic.php containing suspicious ethname parameters.
🧯 If You Can't Patch
- Immediately remove affected devices from internet-facing positions
- Implement strict network access controls to limit who can reach the management interface
🔍 How to Verify
Check if Vulnerable:
Check device version via web interface or CLI. If running DAR-7000 version 3.2, assume vulnerable.Check Version:
Check web interface System Status page or use vendor-specific CLI commands if available.Verify Fix Applied:
No fix available to verify. Monitor for exploitation attempts via logs and network traffic.📡 Detection & Monitoring
Log Indicators:
- HTTP POST requests to /view/vpn/sxh_vpn/sxh_vpnlic.php with unusual ethname parameters
- System logs showing unexpected command execution or process creation
Network Indicators:
- Unusual outbound connections from DAR-7000 devices
- HTTP requests with command injection patterns in POST data
SIEM Query:
source="DAR-7000" AND (url="/view/vpn/sxh_vpn/sxh_vpnlic.php" AND method="POST" AND (param="ethname" AND value CONTAINS "|" OR value CONTAINS ";" OR value CONTAINS "`"))