CVE-2013-2748
📋 TL;DR
CVE-2013-2748 is a critical vulnerability in Belkin Wemo Switch devices that allows remote attackers to upload arbitrary files without authentication. This affects Belkin Wemo Switch devices running firmware versions prior to WeMo_US_2.00.2176.PVT. Attackers can exploit this to gain complete control of affected devices.
💻 Affected Systems
- Belkin Wemo Switch
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete device compromise allowing installation of persistent malware, credential theft, and use as a pivot point into internal networks.
Likely Case
Remote code execution leading to device takeover, creation of botnet nodes, and unauthorized access to connected systems.
If Mitigated
Limited impact if devices are isolated from internet access and placed behind strict network segmentation.
🎯 Exploit Status
Multiple public exploits available. Exploitation requires no authentication and is trivial to execute.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: WeMo_US_2.00.2176.PVT and later
Vendor Advisory: https://www.belkin.com/us/support-article?articleNum=4870
Restart Required: Yes
Instructions:
1. Open Wemo app. 2. Navigate to Settings. 3. Select Firmware Update. 4. Apply update to version 2.00.2176.PVT or later. 5. Device will automatically restart.
🔧 Temporary Workarounds
Network Isolation
allPlace Wemo devices on isolated VLAN with no internet access
Firewall Blocking
linuxBlock all inbound traffic to Wemo devices from untrusted networks
iptables -A INPUT -s 0.0.0.0/0 -d [WEMO_IP] -j DROP
🧯 If You Can't Patch
- Immediately disconnect affected devices from internet and place behind strict firewall rules
- Replace vulnerable devices with updated models or alternative products
🔍 How to Verify
Check if Vulnerable:
Check firmware version in Wemo app Settings > About. If version is below 2.00.2176.PVT, device is vulnerable.Check Version:
Not applicable - version check only available through Wemo mobile app interfaceVerify Fix Applied:
Confirm firmware version shows 2.00.2176.PVT or higher in Wemo app Settings > About.📡 Detection & Monitoring
Log Indicators:
- Unusual file upload attempts to device web interface
- Unexpected firmware modification logs
Network Indicators:
- HTTP POST requests to /upnp/control/deviceconfig on port 49152
- Unusual outbound connections from Wemo devices
SIEM Query:
source_ip=* dest_port=49152 http_method=POST uri_path="/upnp/control/deviceconfig"