CVE-2023-43207
📋 TL;DR
This CVE describes a command injection vulnerability in D-LINK DWL-6610 access points that allows attackers to execute arbitrary commands via the configRestore parameter. Attackers can achieve remote code execution with high privileges, potentially compromising the entire device. Organizations using affected D-LINK DWL-6610 access points with vulnerable firmware are at risk.
💻 Affected Systems
- D-LINK DWL-6610
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full device compromise leading to persistent backdoor installation, network pivoting to internal systems, data exfiltration, and use as a botnet node.
Likely Case
Unauthenticated remote code execution allowing attackers to modify device configuration, intercept network traffic, or disrupt network services.
If Mitigated
Limited impact if device is isolated from internet and internal networks, with strict network segmentation and monitoring.
🎯 Exploit Status
Public proof-of-concept available in GitHub repository. Exploitation requires network access to device management interface.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Unknown
Restart Required: No
Instructions:
Check D-LINK official website for firmware updates. If available, download latest firmware and follow vendor upgrade procedures.
🔧 Temporary Workarounds
Network Isolation
allIsolate affected devices from internet and restrict access to management interface
Access Control Lists
allImplement strict firewall rules to limit access to device management interface
🧯 If You Can't Patch
- Segment affected devices in isolated VLAN with no internet access
- Implement strict network monitoring for unusual traffic patterns from affected devices
🔍 How to Verify
Check if Vulnerable:
Check device firmware version via web interface or SSH. If version is exactly FW_v_4.3.0.8B003C, device is vulnerable.Check Version:
ssh admin@device_ip 'cat /etc/version' or check web interface System Information pageVerify Fix Applied:
Verify firmware version has been updated to a version later than FW_v_4.3.0.8B003C📡 Detection & Monitoring
Log Indicators:
- Unusual configuration restore attempts
- Unexpected command execution in system logs
- Failed authentication attempts followed by configuration changes
Network Indicators:
- Unusual outbound connections from access point
- Traffic to unexpected ports
- Multiple configuration upload attempts
SIEM Query:
source="dlink-firewall" AND (event="config_upload" OR event="config_restore") AND status="success"