CVE-2025-60563
📋 TL;DR
This buffer overflow vulnerability in D-Link DIR600L routers allows attackers to execute arbitrary code by sending specially crafted requests to the formSetPortTr function. It affects users of D-Link DIR600L routers running specific vulnerable firmware versions. Successful exploitation could lead to complete device compromise.
💻 Affected Systems
- D-Link DIR600L
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to full router compromise, credential theft, network pivoting, and persistent backdoor installation.
Likely Case
Router crash/reboot causing temporary network disruption, or limited code execution for reconnaissance.
If Mitigated
Denial of service if exploit fails but triggers crash, or blocked by network segmentation.
🎯 Exploit Status
Public GitHub repository contains detailed analysis and likely exploit code. Buffer overflow via curTime parameter suggests straightforward exploitation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Unknown - No D-Link advisory found at time of analysis
Restart Required: Yes
Instructions:
1. Check D-Link support site for firmware updates. 2. Download latest firmware for DIR600L. 3. Access router admin interface. 4. Navigate to firmware update section. 5. Upload and apply new firmware. 6. Reboot router.
🔧 Temporary Workarounds
Disable remote administration
allPrevent external access to router administration interface
Access router admin → Advanced → Remote Management → Disable
Network segmentation
allIsolate router management interface from untrusted networks
🧯 If You Can't Patch
- Replace affected router with supported model
- Implement strict firewall rules blocking access to router admin interface from untrusted networks
🔍 How to Verify
Check if Vulnerable:
Check router firmware version in admin interface under Status → FirmwareCheck Version:
Check router web interface or use nmap/router scanning toolsVerify Fix Applied:
Verify firmware version is updated beyond FW116WWb01📡 Detection & Monitoring
Log Indicators:
- Multiple POST requests to formSetPortTr with malformed curTime parameter
- Router crash/reboot logs
- Unusual outbound connections from router
Network Indicators:
- HTTP requests containing long curTime parameters to router admin interface
- Port 80/443 traffic to router with exploit patterns
SIEM Query:
source_ip="router_ip" AND (uri_path="*formSetPortTr*" AND param_length>100) OR event_type="device_reboot"