CVE-2024-57578
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary code on Tenda AC18 routers via a stack overflow in the formSetCfm function. Attackers can exploit this by sending specially crafted requests to the vulnerable parameter. This affects all users running the vulnerable firmware version.
💻 Affected Systems
- Tenda AC18
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of the router leading to persistent backdoor installation, network traffic interception, credential theft, and lateral movement to connected devices.
Likely Case
Remote code execution allowing attackers to modify router settings, intercept traffic, or use the router as part of a botnet.
If Mitigated
Limited impact if network segmentation isolates the router and proper access controls prevent external exploitation.
🎯 Exploit Status
Exploitation requires understanding of stack overflow techniques and router firmware specifics, but no authentication is needed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Tenda website for latest firmware
Vendor Advisory: Not publicly available
Restart Required: Yes
Instructions:
1. Visit Tenda official website 2. Download latest firmware for AC18 3. Log into router admin interface 4. Navigate to System Tools > Firmware Upgrade 5. Upload and install new firmware 6. Reboot router
🔧 Temporary Workarounds
Disable remote management
allPrevents external attackers from accessing the vulnerable interface
Network segmentation
allIsolate router management interface from untrusted networks
🧯 If You Can't Patch
- Replace router with a different model or vendor
- Implement strict firewall rules to block all external access to router management interface
🔍 How to Verify
Check if Vulnerable:
Check router web interface or CLI for firmware version V15.03.05.19Check Version:
Check router web interface at System Status or via telnet/ssh if enabledVerify Fix Applied:
Verify firmware version has been updated to a newer release than V15.03.05.19📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to router management interface
- Multiple failed exploitation attempts
- Unexpected router reboots
Network Indicators:
- Unusual traffic patterns from router
- Outbound connections from router to suspicious IPs
- Port scanning originating from router
SIEM Query:
source="router_logs" AND (uri="/goform/setCfm" OR message="stack overflow" OR message="formSetCfm")