CVE-2025-11408
📋 TL;DR
A buffer overflow vulnerability in D-Link DI-7001 MINI routers allows remote attackers to execute arbitrary code by manipulating the 'str' argument in the /dbsrv.asp file. This affects users running firmware version 24.04.18B1 on these devices. Successful exploitation could lead to complete system compromise.
💻 Affected Systems
- D-Link DI-7001 MINI
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to full device takeover, credential theft, lateral network movement, and persistent backdoor installation.
Likely Case
Remote code execution resulting in device compromise, network traffic interception, and potential botnet recruitment.
If Mitigated
Denial of service or device crash if exploit fails or is blocked by network controls.
🎯 Exploit Status
Public exploit disclosure exists on GitHub, making this easily weaponizable by attackers.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: https://www.dlink.com/
Restart Required: Yes
Instructions:
1. Check D-Link website for security advisories
2. Download latest firmware if available
3. Upload firmware via web interface
4. Reboot device after update
🔧 Temporary Workarounds
Network Segmentation
allIsolate DI-7001 MINI devices from internet and critical internal networks
Access Control Lists
linuxBlock external access to device management interface
iptables -A INPUT -p tcp --dport 80 -j DROP
iptables -A INPUT -p tcp --dport 443 -j DROP
🧯 If You Can't Patch
- Replace vulnerable devices with supported models
- Implement strict network segmentation and monitoring
🔍 How to Verify
Check if Vulnerable:
Check firmware version in web interface: Login > Maintenance > FirmwareCheck Version:
curl -s http://device-ip/ | grep -i firmwareVerify Fix Applied:
Verify firmware version is no longer 24.04.18B1📡 Detection & Monitoring
Log Indicators:
- Multiple requests to /dbsrv.asp with long parameters
- Device reboot or crash logs
Network Indicators:
- Unusual outbound connections from router
- Traffic to known exploit repositories
SIEM Query:
source="router.log" AND "dbsrv.asp" AND (str.length>1000 OR POST)