CVE-2024-9514
📋 TL;DR
A critical buffer overflow vulnerability in D-Link DIR-605L routers allows remote attackers to execute arbitrary code by manipulating the curTime parameter in the formSetDomainFilter function. This affects D-Link DIR-605L firmware version 2.13B01 BETA. Attackers can exploit this without authentication to potentially take full control of affected devices.
💻 Affected Systems
- D-Link DIR-605L
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete device compromise, creation of persistent backdoors, lateral movement to internal networks, and botnet recruitment.
Likely Case
Device takeover for credential theft, DNS hijacking, man-in-the-middle attacks, and participation in DDoS botnets.
If Mitigated
Limited impact if device is behind firewall with restricted WAN access, though internal network exposure remains.
🎯 Exploit Status
Public exploit code available on GitHub. Attack requires sending crafted HTTP request to /goform/formSetDomainFilter endpoint.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: https://www.dlink.com/
Restart Required: No
Instructions:
No official patch available. Check D-Link website for firmware updates. Consider replacing device if no fix is provided.
🔧 Temporary Workarounds
Disable WAN access to web interface
allBlock external access to router management interface
Configure firewall to block incoming traffic on ports 80/443 to router IP
Network segmentation
allIsolate router on separate VLAN
🧯 If You Can't Patch
- Replace affected device with supported model
- Implement strict network ACLs to limit access to router management interface
🔍 How to Verify
Check if Vulnerable:
Check firmware version in router web interface at System > Firmware. If version is 2.13B01 BETA, device is vulnerable.Check Version:
curl -s http://router-ip/ | grep -i firmware or check web interfaceVerify Fix Applied:
Verify firmware version has been updated to a non-vulnerable release. No version 2.13B01 BETA should be present.📡 Detection & Monitoring
Log Indicators:
- HTTP POST requests to /goform/formSetDomainFilter with abnormal curTime parameter length
- Multiple failed buffer overflow attempts in system logs
Network Indicators:
- Unusual HTTP traffic to router port 80/443 with POST to formSetDomainFilter
- Suspicious payloads in HTTP requests
SIEM Query:
source="router_logs" AND (url="/goform/formSetDomainFilter" OR method="POST" AND uri CONTAINS "formSetDomainFilter")