CVE-2024-46486
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary code on TP-LINK TL-WDR5620 v2.3 routers via the httpProcDataSrv function. Attackers can potentially take full control of affected devices. All users of TP-LINK TL-WDR5620 v2.3 routers are affected.
💻 Affected Systems
- TP-LINK TL-WDR5620 Gigabit Edition
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of router allowing attacker to intercept all network traffic, install persistent malware, pivot to internal network devices, and use router as botnet node.
Likely Case
Router compromise leading to DNS hijacking, credential theft from network traffic, and installation of cryptocurrency miners or other malware.
If Mitigated
Limited impact if router is behind firewall with restricted WAN access and regular monitoring is in place.
🎯 Exploit Status
Public proof-of-concept code exists in GitHub repository. Exploitation appears straightforward based on available information.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: Unknown
Restart Required: Yes
Instructions:
1. Check TP-LINK support site for firmware updates. 2. Download latest firmware for TL-WDR5620 v2.3. 3. Log into router admin interface. 4. Navigate to System Tools > Firmware Upgrade. 5. Upload and install new firmware. 6. Wait for router to reboot.
🔧 Temporary Workarounds
Disable Remote Management
allPrevent external access to router administration interface
Network Segmentation
allPlace router in isolated network segment with restricted access
🧯 If You Can't Patch
- Replace vulnerable router with updated model or different vendor
- Implement strict firewall rules to block all inbound traffic to router management interface
🔍 How to Verify
Check if Vulnerable:
Check router hardware version label on device and compare to firmware version in admin interfaceCheck Version:
Check router web interface at http://192.168.1.1 or http://tplinkwifi.net, navigate to System Tools > Firmware UpgradeVerify Fix Applied:
Verify firmware version has been updated to a version after the vulnerability disclosure date📡 Detection & Monitoring
Log Indicators:
- Unusual HTTP requests to router management interface
- Unexpected process execution in router logs
- Configuration changes not initiated by administrator
Network Indicators:
- Unusual outbound connections from router
- DNS queries to suspicious domains
- Unexpected traffic patterns from router
SIEM Query:
source="router_logs" AND (http_uri="*httpProcDataSrv*" OR process="*unexpected*" OR config_change="true")