CVE-2023-43204
📋 TL;DR
CVE-2023-43204 is a critical command injection vulnerability in D-LINK DWL-6610 access points that allows attackers to execute arbitrary operating system commands via the manual-time-string parameter. This affects organizations using DWL-6610 access points with vulnerable firmware, potentially allowing complete device compromise and network infiltration.
💻 Affected Systems
- D-LINK DWL-6610
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full device takeover leading to persistent backdoor installation, credential theft, lateral movement into internal networks, and deployment of ransomware or botnet malware.
Likely Case
Unauthenticated remote code execution allowing attackers to modify device configuration, intercept network traffic, or use the device as a pivot point for further attacks.
If Mitigated
Limited impact if device is behind strict firewall rules, not internet-facing, and network segmentation prevents lateral movement.
🎯 Exploit Status
Public GitHub repository contains technical details and likely exploit code. CVSS 9.8 indicates trivial exploitation without authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Not available
Restart Required: Yes
Instructions:
1. Check D-LINK security advisories for patch availability. 2. If patch exists, download from official D-LINK support portal. 3. Upload firmware via web interface. 4. Reboot device after update.
🔧 Temporary Workarounds
Network Isolation
allPlace DWL-6610 devices behind strict firewall rules to prevent external access
Disable Management Interface
allDisable web management interface if not required for operation
🧯 If You Can't Patch
- Immediately remove affected devices from internet-facing positions
- Implement strict network segmentation to contain potential compromise
🔍 How to Verify
Check if Vulnerable:
Check firmware version via web interface: System > Firmware Information. If version is 4.3.0.8B003C, device is vulnerable.Check Version:
No CLI command available. Use web interface at http://[device-ip]/System/firmware.aspVerify Fix Applied:
Verify firmware version has changed from 4.3.0.8B003C to a newer version after update.📡 Detection & Monitoring
Log Indicators:
- Unusual manual-time-string parameter values in web logs
- Unexpected system command execution in device logs
Network Indicators:
- Unusual outbound connections from DWL-6610 devices
- Suspicious payloads in HTTP requests to device management interface
SIEM Query:
source="dwl-6610-logs" AND (http_uri="*manual-time-string*" OR message="*command injection*")