CVE-2013-1599

9.8 CRITICAL

📋 TL;DR

This CVE describes a command injection vulnerability in D-Link IP camera firmware that allows remote attackers to execute arbitrary commands through the web interface. Attackers can gain full control of affected cameras by injecting malicious commands into the rtpd.cgi script. This affects multiple D-Link IP camera models with specific vulnerable firmware versions.

💻 Affected Systems

Products:
  • D-Link DCS-3411
  • DCS-3430
  • DCS-5605
  • DCS-5635
  • DCS-1100L
  • DCS-1130L
  • DCS-1100
  • DCS-1130
  • DCS-2102
  • DCS-2121
  • DCS-3410
  • DCS-5230
  • DCS-5230L
  • DCS-6410
  • DCS-7410
  • DCS-7510
  • WCS-1100
Versions: See specific firmware versions in CVE description
Operating Systems: Embedded Linux firmware
Default Config Vulnerable: ⚠️ Yes
Notes: Vulnerability exists in default web interface configuration. No special configuration required for exploitation.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Complete compromise of camera system leading to unauthorized video access, camera manipulation, lateral movement to other network devices, and persistent backdoor installation.

🟠

Likely Case

Remote code execution allowing attackers to disable cameras, exfiltrate video feeds, or use cameras as pivot points for further network attacks.

🟢

If Mitigated

Limited impact if cameras are isolated on separate VLANs with strict network segmentation and no internet exposure.

🌐 Internet-Facing: HIGH - Direct internet exposure allows remote attackers to exploit without network access.
🏢 Internal Only: MEDIUM - Requires internal network access but exploitation is straightforward once access is gained.

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: CONFIRMED
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Public exploit code available. Exploitation requires only HTTP access to the camera's web interface with no authentication.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Check D-Link advisories for specific patched versions per model

Vendor Advisory: https://support.dlink.com/

Restart Required: Yes

Instructions:

1. Identify camera model and current firmware version. 2. Visit D-Link support site for your specific model. 3. Download latest firmware. 4. Upload firmware through camera web interface. 5. Reboot camera after update completes.

🔧 Temporary Workarounds

Network Segmentation

all

Isolate cameras on separate VLAN with strict firewall rules blocking all unnecessary traffic.

Web Interface Restriction

linux

Block external access to camera web interface (port 80/443) at network perimeter.

iptables -A INPUT -p tcp --dport 80 -j DROP
iptables -A INPUT -p tcp --dport 443 -j DROP

🧯 If You Can't Patch

  • Segment cameras on isolated network with no internet access
  • Implement strict firewall rules blocking all inbound traffic to cameras except from authorized management systems

🔍 How to Verify

Check if Vulnerable:

Check firmware version in camera web interface under System > Firmware and compare with vulnerable versions listed in CVE.

Check Version:

curl -s http://camera-ip/cgi-bin/rtpd.cgi?cmd=version

Verify Fix Applied:

After patching, verify firmware version is updated and test that rtpd.cgi endpoint no longer accepts command injection payloads.

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to /cgi-bin/rtpd.cgi
  • Commands containing shell metacharacters in web logs
  • Multiple failed exploit attempts

Network Indicators:

  • HTTP requests to rtpd.cgi with suspicious parameters
  • Outbound connections from cameras to unexpected destinations

SIEM Query:

source="web_logs" AND uri="/cgi-bin/rtpd.cgi" AND (param="cmd" OR param="command") AND (value="*;*" OR value="*|*" OR value="*`*" OR value="*$(*")

🔗 References

📤 Share & Export