CVE-2025-15177

7.2 HIGH

📋 TL;DR

A stack-based buffer overflow vulnerability in Tenda WH450 router firmware version 1.0.0.18 allows remote attackers to execute arbitrary code by sending specially crafted HTTP requests to the /goform/SetIpBind endpoint. This affects all users running the vulnerable firmware version on Tenda WH450 routers. The vulnerability is remotely exploitable without authentication.

💻 Affected Systems

Products:
  • Tenda WH450
Versions: 1.0.0.18
Operating Systems: Embedded router firmware
Default Config Vulnerable: ⚠️ Yes
Notes: All devices running the vulnerable firmware version are affected. The HTTP handler is typically enabled by default for web management.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Remote code execution leading to complete router compromise, network traffic interception, credential theft, and lateral movement into connected networks.

🟠

Likely Case

Router compromise leading to denial of service, configuration changes, or installation of persistent malware for network monitoring.

🟢

If Mitigated

Limited impact if network segmentation prevents router access from untrusted networks and regular backups allow quick recovery.

🌐 Internet-Facing: HIGH - The vulnerability is remotely exploitable via HTTP requests, making internet-facing routers immediately vulnerable to attack.
🏢 Internal Only: HIGH - Even internally, any attacker with network access can exploit this vulnerability to compromise the router.

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Public proof-of-concept code is available on GitHub, making exploitation straightforward for attackers with basic skills.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Unknown

Vendor Advisory: Not available

Restart Required: Yes

Instructions:

1. Check Tenda website for firmware updates
2. Download latest firmware for WH450
3. Access router web interface
4. Navigate to firmware upgrade section
5. Upload and apply new firmware
6. Reboot router after update

🔧 Temporary Workarounds

Network Access Control

linux

Restrict access to router management interface using firewall rules

iptables -A INPUT -p tcp --dport 80 -s trusted_network -j ACCEPT
iptables -A INPUT -p tcp --dport 80 -j DROP

Disable Remote Management

all

Turn off web management interface or restrict to local network only

🧯 If You Can't Patch

  • Segment router onto isolated network VLAN with strict access controls
  • Implement network monitoring for suspicious HTTP requests to /goform/SetIpBind endpoint

🔍 How to Verify

Check if Vulnerable:

Check router firmware version via web interface at System Status or About page. If version is 1.0.0.18, device is vulnerable.

Check Version:

curl -s http://router-ip/ | grep -i 'firmware\|version' or check web interface

Verify Fix Applied:

After firmware update, verify version number has changed from 1.0.0.18 and test that /goform/SetIpBind endpoint responds properly to normal requests.

📡 Detection & Monitoring

Log Indicators:

  • Unusual HTTP POST requests to /goform/SetIpBind
  • Router crash/reboot logs
  • Large payloads in HTTP requests

Network Indicators:

  • HTTP traffic to router on port 80 with abnormal request sizes
  • Multiple failed exploitation attempts

SIEM Query:

source="router_logs" AND (uri_path="/goform/SetIpBind" AND (content_length>1000 OR status_code=500))

🔗 References

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