CVE-2024-57040
📋 TL;DR
This vulnerability involves hardcoded root passwords in specific TP-Link router firmware versions, allowing attackers to gain administrative access. Attackers can extract the password from firmware files or brute-force it via physical access. This affects users of TL-WR845N routers with vulnerable firmware.
💻 Affected Systems
- TP-Link TL-WR845N(UN)
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete router compromise leading to network takeover, traffic interception, malware deployment, and lateral movement to connected devices.
Likely Case
Unauthorized administrative access enabling configuration changes, DNS hijacking, and credential theft from network traffic.
If Mitigated
Limited impact if routers are behind firewalls with strict access controls and network segmentation.
🎯 Exploit Status
Exploitation requires physical access for brute-force or firmware analysis skills for password extraction.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: Not available
Restart Required: No
Instructions:
No official patch available. Check TP-Link website for firmware updates and replace vulnerable devices if possible.
🔧 Temporary Workarounds
Change Default Admin Credentials
allChange router admin password to strong unique credentials
Login to router admin interface > System Tools > Administration > Change Password
Disable Remote Management
allPrevent external access to router administration interface
Login to router admin interface > Security > Remote Management > Disable
🧯 If You Can't Patch
- Replace affected routers with updated models
- Segment network to isolate vulnerable routers behind firewalls
🔍 How to Verify
Check if Vulnerable:
Check firmware version in router admin interface: Login > System Tools > Firmware UpgradeCheck Version:
Not applicable - check via web interfaceVerify Fix Applied:
Verify firmware version is updated beyond vulnerable versions📡 Detection & Monitoring
Log Indicators:
- Failed login attempts to admin interface
- Successful logins from unknown IPs
- Configuration changes from unauthorized users
Network Indicators:
- Unusual admin interface access patterns
- DNS configuration changes
- Unexpected outbound connections
SIEM Query:
source="router_logs" (event="login_failed" OR event="login_success") user="admin"