CVE-2022-46025
📋 TL;DR
This vulnerability allows remote attackers to retrieve Wi-Fi credentials and system information from Totolink N200RE_V5 routers without authentication. Attackers can obtain SSIDs and passwords without logging into the management interface. This affects users of Totolink N200RE_V5 routers running vulnerable firmware.
💻 Affected Systems
- Totolink N200RE_V5
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers gain unauthorized access to Wi-Fi networks, potentially compromising all connected devices and enabling man-in-the-middle attacks, data interception, and network infiltration.
Likely Case
Attackers harvest Wi-Fi credentials to gain network access, potentially leading to unauthorized internet usage, network monitoring, or further attacks against connected devices.
If Mitigated
With proper network segmentation and monitoring, impact is limited to credential exposure requiring attackers to be in physical proximity for Wi-Fi access.
🎯 Exploit Status
Simple HTTP request to specific endpoint returns sensitive information without authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: No official advisory found
Restart Required: No
Instructions:
1. Check Totolink website for firmware updates
2. If update available, download and flash via web interface
3. Verify fix by testing exploit endpoint
🔧 Temporary Workarounds
Disable remote management
allPrevent external access to router management interface
Change Wi-Fi credentials
allUpdate SSID and password after verifying vulnerability
🧯 If You Can't Patch
- Isolate router on separate VLAN with strict firewall rules
- Implement network monitoring for unauthorized access attempts
🔍 How to Verify
Check if Vulnerable:
Send HTTP GET request to router IP at endpoint returning Wi-Fi information without authenticationCheck Version:
Check web interface or use nmap/router fingerprintingVerify Fix Applied:
Test same endpoint returns authentication error or no sensitive data📡 Detection & Monitoring
Log Indicators:
- Unauthenticated requests to Wi-Fi information endpoints
- Multiple failed login attempts followed by successful information retrieval
Network Indicators:
- HTTP requests to router management interface from external IPs
- Unusual traffic patterns after credential exposure
SIEM Query:
source_ip=external AND dest_ip=router_ip AND uri_path contains 'wifi' AND response_code=200